Raypak XVers L 406L-856L Type H Mode d'emploi

Catégorie
Chauffe-eau
Taper
Mode d'emploi
A
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property
damage, personal injury, exposure to hazardous materials*, or loss of life. Review the information in this
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carcinogenic, to humans.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and liquids or other
combustible materials in the vicinity of this or any other appliance. To do so may result in an explo-
sion or fire.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
This manual should be maintained in legible condition and kept adjacent to the boiler or in a safe place for future
reference.
CATALOG NO. 3400.582
Effective: 09-01-19
Replaces: New
P/N 241782
INSTALLATION AND
OPERATION MANUAL
Models 406L - 856L Type H
2
QUICK START GUIDE
CLEARANCES
Space required: 3 ft. x 3 ft. See page 8.
Minimum and service clearances: See page 9 for
clearances table. Note that local code prevails.
COMBUSTION AIR
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Ducting materials: PVC, CPVC, or sealed single-wall
galvanized ducting,see page 12 for details.
PIPING
Piping options: Primary/secondary piping. Note that
the heater should be located so that any water leaks
will not cause damage to the adjacent area.
Pressure relief valve: See page 13 for recommended
PRV orientation.
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Primary/secondary piping: See pages 15-22 for
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and cascades).
Tanks: All heaters should be equipped with a
properly-sized expansion tank and air separator
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GAS
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sizes: See page 23.
Required pressure for natural gas:
Min. = 4" WC, Max. = 10.5" WC
Required pressure for propane:
Min. = 4" WC, Max. = 13" WC
Sediment trap is required for all installations.
POWER
Supply voltage: See page 25 for input voltage table.
VENTING - CAT IV
Materials: PVC, CPVC, Polypropylene, stainless
steel, see pages 31-32.
Venting diagrams:
For stainless steel and polypro, see pages 33-35.
For PVC/CPVC see pages 36-39.
Outdoor venting:
Outdoor Vent Kit. See page 40.
CONTROLS INTERFACE
User interface:
VIEW menu is the default menu, see page 50.
To change settings, use the SETUP/ADJUST menu,
see page 50.
Wiring diagram: See page 56.
OPERATION
Boiler Status Light: See page 62.
3
CONTENTS
1. WARNINGS ............................................................. 4
Pay Attention to These Terms ................................. 4
2. BEFORE INSTALLATION ...................................... 5
Product Receipt ...................................................... 5
0RGHO,GHQWL¿FDWLRQ ................................................. 5
5DWLQJVDQG&HUWL¿FDWLRQV ....................................... 5
Installations at Elevation ......................................... 5
3. INSTALLATION ....................................................... 5
Installation Codes ................................................... 5
Component Locations ............................................. 6
Equipment Base .....................................................7
Clearances .............................................................. 7
Pallet Jack/Forklifting .............................................. 8
Outdoor Installation ................................................. 9
Combustion and Ventilation Air ............................. 11
Inside Air Contamination ....................................... 11
Air Supply ............................................................. 12
Water Piping ......................................................... 13
Hydronic Heating .................................................. 14
Gas Supply Connection ........................................ 23
Electrical Power Connections ............................... 24
0XOWLSOH9ROWDJH&RQ¿JXUDWLRQV ............................ 25
Field-Connected Devices ...................................... 25
Venting - General .................................................. 30
Vent Terminal Location .........................................30
Venting Installation Tips ........................................ 33
9HQWLQJ&RQ¿JXUDWLRQV .......................................... 33
9HUWLFDO9HQWLQJ&DWHJRU\,96WDLQOHVV6WHHO
and Polypropylene ................................................ 33
Direct Vent-Vertical - Stainless Steel
and Polypropylene ................................................ 34
Horizontal Through-the-Wall and Direct Vent -
Horizontal - Stainless Steel and Polypropylene .... 35
9HUWLFDO9HQWLQJ&DWHJRU\,939&&39& ......... 36
Direct Vent - Vertical - PVC/CPVC ........................ 37
Horizontal Through-the-Wall and Direct
Vent - Horizontal - PVC/CPVC .............................. 38
Outdoor Installation ............................................... 40
Common Venting .................................................. 40
Condensate Treatment ......................................... 41
4. CONTROLS ........................................................... 42
Sequence of Operation ......................................... 42
Freeze Protection .................................................42
VERSA Integrated Control ................................... 44
Glycol % Setting ...................................................45
Vent Protection ..................................................... 45
Control Devices .................................................... 46
User Interface ....................................................... 50
5. WIRING DIAGRAM ............................................... 56
6. START-UP .............................................................. 57
Pre Start-up ..........................................................57
Pre Start-up Check ............................................... 57
Initial Start-up ........................................................ 57
Preparation ........................................................... 57
Start-Up ................................................................58
7. OPERATION .......................................................... 61
Lighting Instructions .............................................. 61
7R7XUQ2ႇ*DV7R$SSOLDQFH ............................... 62
Boiler Status Light ................................................. 62
8. TROUBLESHOOTING ......................................... 62
XVers L Error Codes ............................................. 62
Heater Errors ........................................................ 62
Heater Faults ........................................................ 62
Raymote Troubleshooting ..................................... 63
XVers L Fault Text ................................................. 63
9. MAINTENANCE .................................................... 65
Suggested Minimum
Maintenance Schedule ......................................... 65
Preventive Maintenance Schedule ....................... 66
Filter Maintenance ................................................ 67
10. IMPORTANT INSTRUCTIONS FOR THE
COMMONWEALTH OF MASSACHUSETTS .... 68
NOTE: Patent pending features utilized in XVers L construction and operation.
4
1. WARNINGS
Pay Attention to These Terms
A
DANGER: Make sure the gas on which the boiler will
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rating plate.
A
WARNING: %RLOHUV XVLQJ SURSDQH JDV DUH GLႇHUHQW
from natural gas models. A natural gas boiler will not
function safely on propane and vice versa. Conversions
RI ERLOHU JDV W\SH VKRXOG RQO\ EH PDGH E\ TXDOL¿HG
installers using factory supplied components. The boiler
should only use the fuel type in accordance with listing
on rating plate. Any other fuel usage will result in death
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A
WARNING: Do not use this boiler if any part has
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technician to inspect the boiler and to replace any part
of the control system and any gas control which has
been under water.
A
WARNING: To minimize the possibility of improper
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boiler:
Always keep the area around the boiler free of
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liquids and vapors.
Boiler should never be covered or have any blockage
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A
CAUTION: This boiler requires forced water
circulation when the burner is operating. See Table E
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A
WARNING: Risk of electrical shock. More than one
disconnect switch may be required to de-energize the
equipment before servicing.
NOTE: 0LQLPXP SLSH VL]H IRU WKH ERLOHU LQOHWRXWOHW
connections is dependent on the equivalent length of
piping between the load loop and the boiler loop, the
operating conditions and the size of the boiler. See Table
G and Table H.
A
WARNING: Should overheating occur or the gas
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gas supply at a location external to the boiler.
A
CAUTION: If this boiler is to be installed in a negative
or positive pressure equipment room, there are special
installation requirements. Consult factory for details.
A
WARNING: Both natural gas and propane have an
odorant added to aid in detecting a gas leak. Some
people may not physically be able to smell or recognize
this odorant. If you are unsure or unfamiliar with the
smell of natural gas or propane, ask your local gas
supplier. Other conditions, such as “odorant fade,”
which causes the odorant to diminish in intensity, can
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JDVOHDNE\VPHOOPRUHGLႈFXOW
A
DANGER
Indicates the presence of immediate hazards which will cause severe personal injury, death or
substantial property damage if ignored.
A
WARNING
Indicates the presence of hazards or unsafe practices which could cause severe personal injury,
death or substantial property damage if ignored.
A
CAUTION
Indicates the presence of hazards or unsafe practices which could cause minor personal injury or
product or property damage if ignored.
CAUTION
CAUTION used without the warning alert symbol indicates a potentially hazardous condition which
could cause minor personal injury or product or property damage if ignored.
NOTE
Indicates special instructions on installation, operation, or maintenance which are important but not
related to personal injury hazards.
5
2. BEFORE INSTALLATION
Raypak strongly recommends that this manual be re-
viewed thoroughly before installing your XVers L boiler.
Please review the General Safety information before
installing the boiler. Factory warranty does not apply to
boilers that have been improperly installed or operated.
Refer to the warranty at the back of this manual.
,QVWDOODWLRQDQGVHUYLFHPXVWEHSHUIRUPHGE\DTXDOL¿HG
installer, service agency, or gas supplier. If, after reviewing
this manual, you still have questions which this manual
does not answer, please contact your local Raypak
representative or visit our website at www.raypak.com.
NOTE: Raypak recommends laying out and installing
the vent system before installing water piping. This
will ensure that the venting system and associated
FRPSRQHQWV ZLOO ¿W LQWR WKH DWWDFKHG VSDFH IRU SURSHU
operation.
Thank you for purchasing a Raypak product. We hope you
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equipment.
Product Receipt
On receipt of your boiler visually check for external damage
to the shipping crate. If the crate is damaged, make a
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the shipment. Next, remove the boiler from the shipping
packaging. Report any damage to the carrier immediately.
On occasion, items are shipped loose. Be sure that you
receive the correct number of packages as indicated on
the Bill of Lading.
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carrier by consignee. Permission to return goods must
be received from the factory prior to shipping. Goods
returned to the factory without an authorized Returned
Goods Receipt number will not be accepted. All returned
goods are subject to a restocking charge. When ordering
parts, you must specify the model and serial number of
the boiler. When ordering under warranty conditions, you
must also specify the date of installation.
Purchased parts are subject to replacement only under the
manufacturer’s warranty. Debits for defective replacement
parts will not be accepted. Parts will be replaced in kind
only per Raypaks standard warranties.
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7KHPRGHOLGHQWL¿FDWLRQQXPEHUDQGERLOHUVHULDOQXPEHU
are found on the rating plate located on the rear jacket
panel of the boiler. The model number will have the form
H7-856L* or similar depending on the boiler size and
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7KHQXPEHUZKLFKIROORZVLGHQWL¿HVWKH¿ULQJPRGH
 HOHFWURQLFPRGXODWLRQ
7KH VHFRQG JURXS RI FKDUDFWHUV LGHQWL¿HV WKH VL]H
RI WKH ERLOHU WKH IRXU QXPEHUV UHSUHVHQWLQJ WKH
approximate MBTUH input), and, where applicable, a
letter, indicating the manufacturing series.
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Standards
ANSI Z21.13 · CSA 4.9 - latest edition, Gas-Fired Hot
Water Boilers
CAN 3.1 - latest edition, Industrial and Commercial
Gas-Fired Package Boilers
All Raypak boilers are National Board registered, and
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$VVRFLDWLRQ&6$IRUWKH86DQG&DQDGD(DFKERLOHULV
constructed in accordance with Section IV of the American
6RFLHW\RI0HFKDQLFDO(QJLQHHUV$60(+HDWHU3UHVVXUH
Vessel Code and bears the ASME "H" stamp. This boiler
also complies with the latest edition of the ASHRAE 90.1
Standard.
A
WARNING: Altering any Raypak pressure vessel by
installing replacement heat exchangers, or any ASME
SDUWVQRWPDQXIDFWXUHGDQGRUDSSURYHGE\5D\SDNZLOO
instantly void the ASME and CSA ratings of the vessel
and any Raypak warranty on the vessel. Altering the
ASME or CSA ratings of the vessel also violates national,
state, and local approval codes.
Installations at Elevation
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elevation. Consult your local representative or the factory
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sea level. No hardware changes are required to the boilers
IRU LQVWDOODWLRQV XS WR  IW  P DGMXVWPHQWV
may be required).
3. INSTALLATION
Installation Codes
Installations must follow these codes:
Local, state, provincial, and national codes, laws,
regulations and ordinances
National Fuel Gas Code, ANSI Z223.1/NFPA 54
ODWHVWHGLWLRQ1)*&
National Electrical Code, ANSI/NFPA 70 - latest
HGLWLRQ1(&
Standard for Controls and Safety Devices for
Automatically Fired Boilers, ANSI/ASME CSD-1,
&6'ZKHQUHTXLUHG
For Canada only: CAN/CSA B149 Natural Gas and
Propane Installation Code and CSA C22.1 C.E.C.
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6
FILTER BOX
CONTROL BOX
COMBUSTION
AIR BLOWER
HEAT EXCHANGER
FRONT OF HEATER
LOW WATER
PROBE
LOW VOLTAGE
FIELD CONNECTION
PRESSURE SWITCH
VENT DIFFERENTAL
WATER
OUTLET
GAS SUPPLY
CONNECTION
WATER INLET
F10574
HEAT EXCHANGER
DRAIN PLUG
Component Locations
Figure 1. Component Locations – Side View
Figure 2. Component Locations - Front View
Figure 3. Component Locations - Rear View
VERSA BOARD
208V
TRANSFORMER
(OPTIONAL)
CONDENSATE
TRAP ASSY
RESET BUTTON
TOUCHSCREEN DISPLAY
3-POSITION
ROCKER SWITCH
GAS TRAIN
BALL VALVE
GAS VALVE
MODULATING
PROGRAMMABLE
IGNITION
MODULE
(PIM)
MAIN POWER
SWITCH
CONDENSATE
TREATMENT
(OPTIONAL)
DRAIN PLUG
F10575
AUTO
HIGH LIMIT
(OPTIONAL)
MANUAL
HIGH LIMIT
(OPTIONAL)
406L - 506L = 1 NPT
606L - 856L = 1-1/4 NPT
GAS SUPPLY
CONNECTION
FLUE OUTLET
TEMP INLET
SENSOR
LOW VOLTAGE
FIELD
CONNECTION
RATING PLATE
F10576
WATER OUTLET
406L - 606L = 2 NPT
726L - 856L = 2-1/2 NP
CONDENSATE DRAIN
3/4 NPT FEMALE
WATER INLET
406L - 606L = 2 NPT
726L - 856L = 2-1/2 NP
Model
No.
Input
MBTUH (Kw)
Flue Size
in. (mm)
Max Min Flue Intake
406L
399

40

4

4

506L
500

50

4

4

606L
600

85.7

4

4

726L
725

103.6

6

6

856L
850

121.4

6

6

Table A. Basic Product Data
7
Figure 4. Component Locations - Top View
F10577
IGNITER
FLUE OUTLET
FLAME SENSOR
BURNER FLAME
VIEWING PORT
BLOWER
ASSEMBLY
FRONT OF HEATER
AIR BLEED
PRESSURE SWITCH
VENT DIFFERENTAL
AIR FILTER BOX
DIRECT VENT
COMBUSTION
AIR CONNECTION
(OPTIONAL)
FLUE GAS ANALYZER
TEST PORT
HIGH GAS
PRESSURE SWITCH
(OPTIONAL)
LOW GAS
PRESSURE SWITCH
(OPTIONAL)
Equipment Base
The boiler should be mounted on a level, structurally
sound surface. The boiler is approved for installation on
a combustible surface but must NEVER be installed on
carpeting. Gas-fueled equipment installed in enclosed
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DERYHWKHÀRRU
CAUTION: This boiler should be located in an area
where water leakage will not result in damage to the area
adjacent to the appliances or to the structure.
In addition, the boiler shall be installed such that the gas
ignition system components are protected from water
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RU VHUYLFH FLUFXODWRU UHSODFHPHQW FRQWURO UHSODFHPHQW
etc.).
If the boiler needs to be secured to the ground, use the
hole pattern shown in Figure 7 and Figure 8, following
local codes.
Clearances
Indoor Installations
Heater Side
Minimum
Clearances from
Combustible
Surfaces
in. (mm)
Minimum Service
Clearance
in. (mm)
Floor * 0 0
Rear  
Right Side 0 0
Left Side 0 0
Top 0 
Front Open 
Vent  
* DO NOT install on carpeting
Table B. Clearances - Indoor Installations
8
Figure 7. Single Unit Anchor Hole Locations
Figure 8. Multiple Unit Anchor Hole Locations
24.0"
(610 mm)
4X n .75 (19 mm)
SINGLE BOILER
ANCHOR LOCATIONS
FRONT OF
UNIT
31.1"
(790 mm)
4X .85
(22 mm)
2X 1.38
(35 mm)
HEAT EXCHANGER
ANCHOR LOCATIONS
4 PLACES
17.3" (440 mm)
SIDE FORKLIFT
F10578
4X .85"
(22 mm)
2x 1.38
"
(35 mm)
3"
(76 mm)
F10579
4x n .75 (19 mm)
MULTI-BOILER
ANCHOR LOCATIONS
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LQIURQWDWOHDVWPPRQWKHUHDUDQG
mm) above the top of the boiler is required. This will allow
the boiler to be serviced in its installed location without
movement or removal of the boiler.
Service clearances less than the minimum may require
removal of the boiler to service either the heat exchanger
or the burner components. In either case, the boiler must
be installed in a manner that will enable the boiler to be
serviced without removing any structure around the boiler.
3DOOHW-DFN)RUNOLIWLQJ
The XVers L boilers are designed to be moved by pallet
MDFNRUIRUNOLIWIURQWVLGHRUHLWKHUVLGH6HH Figure 5 and
Figure 6.
Figure 5. Pallet Jack
Figure 6. Forklifting
9
TOP VIEW
30" (760 mm) MIN.
SERVICE CLEARANCE
24" (610 mm) MIN.
SERVICE CLEARANCE
0"
0"
F10580
24" (610 mm) MIN.
SERVICE CLEARANCE
FRONT VIEW
F10580
0"
0"
Figure 10. Minimum Clearances from Combustible
Surfaces – Indoor and Outdoor Installations
Outdoor Installation
A
CAUTION: DO NOT install XVers L boilers outdoors
in freezing climates.
NOTE: Housekeeping pad of adequate height required
for outdoor units to protect boiler from standing water
and to allow for proper management of condensate.
These units may be installed outdoors when provided with
the factory-supplied and required outdoor trim.
Boilers must not be installed under an overhang unless
clearances are in accordance with local installation codes
and the requirements of the gas supplier.
Three sides must be open in the area under the overhang.
Roof water drainage must be diverted away from boilers
installed under overhangs.
Combustion air is drawn through the louvers in the jacket.
DO NOT remove the cap as shipped from the factory.
F10581
COMBUSTION AIR
THROUGH JACKET
LOUVERS
OUTDOOR CAP
Figure 9. Outdoor Combustion Air
A
CAUTION: Do not install where the condensate can
freeze. Take appropriate measures.
Heater Side
Minimum
Clearances from
Combustible
Surfaces
in. (mm)
Minimum Service
Clearance
in. (mm)
Rear  
Front Open 
Left Side  
Right Side  
Top Unobstructed Unobstructed
Vent
Termination
Open Open
Table C. Clearances – Outdoor Installations
NOTE: Vent termination must not terminate less than 3 ft
EHORZHDYHVVRႈWVRURYHUKDQJV
10
U.S. Installations
1
Canadian Installations
2
A
Clearance above grade, veranda, porch, deck, or
balcony
FP FP
B Clearance to window or door that may be opened
PEHORZRUWRVLGHRI
opening
FP
C Clearance to permanently closed window
* *
D
9HUWLFDOFOHDUDQFHWRYHQWLODWHGVRႈWORFDWHGDERYHWKH
WHUPLQDOZLWKLQDKRUL]RQWDOGLVWDQFHRIFPIURP
the centerline of the terminal
P
*
E &OHDUDQFHWRXQYHQWLODWHGVRႈW
* *
F Clearance to outside corner
* *
G Clearance to inside corner P
*
H
Clearance to each side of center line extended above
meter/regulator assembly
*
FPZLWKLQDKHLJKW
above the meter/regulator
assembly
I Clearance to service regulator vent outlet
*
P
J
Clearance to non-mechanical air supply inlet to
building or the combustion air inlet to any other
appliance
PEHORZRUWRVLGHRI
RSHQLQJFPDERYH
opening
FP
K Clearance to mechanical air supply inlet
FPDERYHLIZLWKLQ
PKRUL]RQWDOO\
P
L
Do not terminate above paved sidewalk or paved
driveway
Slip hazard due to frozen
condensate
Slip hazard due to frozen
condensate
M Clearance under veranda, porch, deck or balcony
*
FP
t
1
In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Code.
2
In accordance with the current CAN/CSA-B149 Installation Codes.
t
Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor and top of terminal, and underside
RIYHUDQGDSRUFKGHFNRUEDOFRQ\LVJUHDWHUWKDQFP
* Clearances in accordance with local installation codes and the requirements of the gas supplier.
Table D. 9HQW$LU,QOHW7HUPLQDWLRQ&OHDUDQFHV
A
INSIDE
CORNER DETAIL
V = VENT
X = AIR INLET
F10692
V
G
H
A
B
B
V
V
B
B
V
A
J
X
I
M
V
X
K
V
V
B
F
C
OPERABLE
FIXED
CLOSED
FIXED
CLOSED
OPERABLE
D
L
B
E
V
V
Figure 11. 0LQLPXP&OHDUDQFHVIURP9HQW$LU,QOHW7HUPLQDWLRQV±,QGRRUDQG2XWGRRU,QVWDOODWLRQV
11
Combustion and Ventilation Air
NOTE:8VHRIWKLVERLOHULQFRQVWUXFWLRQDUHDVZKHUH¿QH
particulate matter, such as concrete or dry-wall dust, is
present may result in damage to the boiler that is not
covered by the warranty. If operated in a construction
environment, a clean source of combustion air must be
provided directly to the boiler.
Inside Air Contamination
All boilers experience some condensation during start-up.
The condensate from flue gas is acidic. Combustion air
can be contaminated by certain vapors in the air which
raise the acidity of the condensate. Higher acidity levels
attack many materials including stainless steel, which is
commonly used in high efficiency systems. The boiler
can be supplied with corrosion-resistant, non-metallic
intake air vent material. You may, however, choose to use
outside combustion air for one or more of these reasons:
1. Installation is in an area containing contaminants
listed below which will induce acidic condensation.
2. You want to reduce infiltration into your building
through openings around windows and doors.
3. You are using AL29-4C stainless steel, PVC,
CPVC or Polypropylene vent pipe, which is more
corrosion-resistant than standard metallic vent pipe.
In extremely contaminated areas, this may also
experience deterioration.
Products causing contaminated combustion air:
spray cans containing chloro/fluorocarbons
permanent wave solutions
chlorinated waxes/cleaners
chlorine-based swimming pool chemicals
calcium chloride used for thawing
sodium chloride used for water softening
refrigerant leaks
paint or varnish removers
hydrochloric acid/muriatic acid
cements and glues
antistatic fabric softeners used in clothes dryers
chloride-type bleaches, detergents, and cleaning
solvents found in household laundry rooms
adhesives used to fasten building products
similar products
Areas where contaminated combustion air commonly
exists:
dry cleaning/laundry areas
metal fabrication plants
beauty shops
refrigeration repair shops
photo processing plants
auto body shops
plastic manufacturing plants
furniture refinishing areas and establishments
new building construction
remodeling areas
open pit skimmers
Check for areas and products listed above before in-
stalling boiler. If found:
remove products permanently, OR
install direct Vent/Truseal option
Indoor Units
This boiler must be supplied with sufficient quantities of
non-contaminated air to support proper combustion and
equipment ventilation. Combustion air can be supplied via
conventional means where combustion air is drawn from
WKHDUHDLPPHGLDWHO\VXUURXQGLQJWKHERLOHUDVVKLSSHG
from factory, combustion air is drawn through louvers in
jacket panels) or via direct vent, where combustion air is
drawn directly from outside. All installations must comply
ZLWK WKH UHTXLUHPHQWV RI WKH 1)*& 86 DQG %
&DQDGDDQGDOOORFDOFRGHV
A
CAUTION: Combustion air must not be contaminated
by corrosive chemical fumes which can damage the
boiler and cause a non-warrantable failure.
NOTE: It is recommended that the intake vent be
insulated to minimize sweating in freezing climates.
Air Filter
An air filter is supplied standard with the boiler. Models
406L-606L use a 10" x 10" MERV 8 filter while models
726L-856L use a 12" x 12" MERV 8 filter. Remove top
panel and filter access panel to inspect and/or replace the
air filter. See Figure 12.
F10582
INLET AIR FILTER
(PANEL REMOVED
FOR CLARITY)
Figure 12. Air Filter Location
12
'LUHFW9HQW7UXVHDO
®
Option
Combustion air may be ducted directly to the boiler using
PVC, CPVC, or sealed single-wall galvanized ducting.
The resulting installation meets the requirements for a
direct-vent installation. See venting section for detailed
information.
1. Install combustion air duct to the Air Intake
Connection. See Figure 4 and Figure 10. Remove
and discard the outdoor cap, connect the collar from
the Truseal option kit. Connect ducting material to
FROODU 6HDO WKH MRLQW DQG IDVWHQHUV ZLWK 579 QRW
supplied). All ducting shall be self-supporting.
2. In cold climates, and to mitigate potential freeze-
up, Raypak highly recommends the installation of a
motorized sealed damper to prevent the circulation
of cold air through the boiler during non-operating
hours. The optional Motorized Combustion Air
Dampers D-37 meets these needs.
3. 9HQWLODWLRQ RI WKH URRP RFFXSLHG E\ WKH ERLOHUV LV
UHTXLUHG DQG FDQ EH SURYLGHG E\ DQ RSHQLQJV IRU
YHQWLODWLRQ DLU ZLWKLQ   PP RI WKH KLJKHVW
practical point communicating with the outdoors.
The total cross-sectional area of these openings
shall be at least 1 square inch free air space per
%78+PPðSHUN:RIWRWDOLQSXWUDWLQJ
of all equipment in the room, when the opening is
communicating directly with the outdoors or through
YHUWLFDO GXFWV 7KH WRWDO FURVVVHFWLRQDO DUHD VKDOO
be at least 1 square inch of net free air space per
%78+PPðSHUN:RIWRWDOLQSXWUDWLQJ
of all equipment in the room, when the opening is
communicating with the outdoors through horizontal
GXFWV'DPDJHWRWKHHTXLSPHQWGXHWRLQDGHTXDWH
ventilation of the space is not a warrantable failure.
Motorized Combustion Air Dampers D-37 or
Louvers
When motorized dampers or louvers are used for
combustion air, they must be interlocked with each
appliance in the equipment room, to ensure proper
operation.
See Field Wiring Connection section of this manual for
proper wiring instructions, using Fan/Damper dry contacts
and external interlock.
A
WARNING: When unit is installed in the freezing
climates using ducted combustion air, a motorized
damper must be used and must be interlocked with the
boiler per NFGC requirements.
CAUTION: All ducting must be self-supported.
Air Supply
U.S. Installations
All Air from Inside the Building
7KH FRQ¿QHG VSDFH VKDOO EH SURYLGHG ZLWK 7:2
permanent openings communicating directly with an
DGGLWLRQDO URRPV RI VXႈFLHQW YROXPH VR WKDW WKH
combined volume of all spaces meets the criteria for a
URRPODUJHLQFRPSDULVRQ1)*&7KHWRWDOLQSXWRIDOO
gas utilization equipment installed in the combined space
shall be considered in making this determination. Each
opening shall have a minimum free area of 1 square inch
SHU  %78+  PPð SHU N: RI WKH WRWDO LQSXW
UDWLQJ RI DOO JDV XWLOL]DWLRQ HTXLSPHQW LQ WKH FRQ¿QHG
VSDFHEXWQRWOHVVWKDQVTXDUHLQFKHVFPð2QH
RSHQLQJVKDOOFRPPHQFHZLWKLQPPRIWKHWRS
DQG RQH RSHQLQJ VKDOO FRPPHQFH ZLWKLQ   PP
of the bottom of the enclosure. The minimum dimension
RIDLURSHQLQJVVKDOOEHQRWOHVVWKDQPPLQDQ\
direction.
All Air from Outdoors
7KHFRQ¿QHGVSDFHVKDOOFRPPXQLFDWHZLWKWKHRXWGRRUV
in accordance with one of the methods below. The
minimum dimension of air openings shall not be less than
PPLQDQ\GLUHFWLRQ:KHUHGXFWVDUHXVHGWKH\
shall be of the same cross-sectional area as the net free
area of the openings to which they connect.
1. Two permanent openings, one commencing within
PPRIWKHWRSDQGRQHFRPPHQFLQJZLWKLQ
PPRIWKHERWWRPRIWKHHQFORVXUHVKDOOEH
provided. The openings shall communicate directly,
RU E\ GXFWV ZLWK WKH RXWGRRUV RU VSDFHV FUDZO RU
attic) that freely communicate with the outdoors.
a. Where directly communicating with the outdoors
or where communicating to the outdoors through
vertical ducts, each opening shall have a
minimum free area of 1 square inch per 4,000
%78+PPðSHUN:RIWRWDOLQSXWUDWLQJRI
all equipment in the enclosure.
b. Where communicating with the outdoors through
horizontal ducts, each opening shall have a
minimum free area of 1 square inch per 2,000
%78+PPðSHUN:RIWRWDOLQSXWUDWLQJRI
all equipment in the enclosure.
2. One permanent opening, commencing within
12" PP RI WKH WRS RI WKH HQFORVXUH VKDOO EH
permitted where the equipment has clearances of
at least 1".4 mm) from the sides and back and
6"  PP IURP WKH IURQW RI WKH DSSOLDQFH 7KH
opening shall directly communicate with the out-
doors or shall communicate through a vertical or
horizontal duct to the outdoors or spaces that freely
communicate with the outdoors, and shall have a
minimum free area of:
13
a. VTXDUHLQFKSHU%78+PPðSHUN:
of the total input rating of all equipment located
in the enclosure, and
b. Not less than the sum of the areas of all vent
connectors in the confined space.
A
WARNING: Do not use the “one permanent opening”
method if the equipment room is under negative-
pressure conditions.
Canadian Installations
A
CAUTION: All combustion air must be drawn from the
air outside of the building; the mechanical equipment
room must communicate directly with the outdoors.
Ventilation of the space occupied by the boiler shall be
SURYLGHGE\DQRSHQLQJVIRUYHQWLODWLRQDLUDWWKHKLJKHVW
practical point communicating with the outdoors. The total
FURVVVHFWLRQDO DUHD RI VXFK DQ RSHQLQJV VKDOO EH DW
least 10% of the area required below, but in no case shall
the cross-sectional area be less than 10 square inches
FPð
A
WARNING: Make sure that the equipment room is not
under negative-pressure conditions.
:KHQ DLU VXSSO\ LV SURYLGHG E\ QDWXUDO DLU ÀRZ IURP
outdoors for a power burner and there is no draft regulator,
GUDIWKRRGRUVLPLODUÀXHJDVGLOXWLRQGHYLFHLQVWDOOHGLQWKH
same space, in addition to the opening for ventilation air
required above, there shall be a permanent air supply
RSHQLQJVKDYLQJDWRWDOFURVVVHFWLRQDODUHDRIQRWOHVV
WKDQVTXDUHLQFKIRUHDFK%78+PPðSHUN:
RIWRWDOUDWHGLQSXWRIWKHEXUQHUVDQGWKHORFDWLRQRIWKH
RSHQLQJVVKDOOQRWLQWHUIHUHZLWKWKHLQWHQGHGSXUSRVHRI
WKHRSHQLQJVIRUYHQWLODWLRQDLUUHIHUUHGDERYH
7KLVRSHQLQJVFDQEHGXFWHGWRDSRLQWQRWPRUHWKDQ
PPnor less than 6" PPDERYHWKHÀRRUOHYHO
The duct can also “goose neckthrough the roof. The duct
LVSUHIHUUHGWR EHVWUDLJKW GRZQ PPIURPWKH
ÀRRUEXWQRWQHDU SLSLQJ5HIHUWRWKH%,QVWDOODWLRQ
Code for additional information.
Water Piping
General
The boiler should be located so that any water leaks will
not cause damage to the adjacent area or structures.
NOTE: 0LQLPXP SLSH VL]H IRU WKH ERLOHU LQOHWRXWOHW
connections is dependent on the equivalent length of
piping between the load loop and the boiler loop, the
operating conditions and the size of the boiler. See Table
G and Table H.
.QY9CVGT%WV
7KLV ERLOHU LV HTXLSSHG ZLWK D /RZ :DWHU &XWRႇ DV D
standard feature. Some state and local codes require this
as part of installation. Please be advised that some areas
UHTXLUHERWKDORZZDWHUFXWRႇDQGDÀRZVZLWFK$ÀRZ
switch is available as the F-1 sales option.
Relief Valve Piping
A
WARNING: Pressure relief valve discharge piping
PXVW EH SLSHG QHDU WKH ÀRRU DQG FORVH WR D GUDLQ WR
eliminate the potential of severe burns. Do not pipe
to any area where freezing could occur. Refer to local
codes.
7KH SUHVVXUH UHOLHIYDOYH359 LV VKLSSHG ORRVH LQ WKH
Shipped Loose Items carton inside the crating.
All PRVs are shipped loose to protect them from damage
during shipping/rigging into place.
PRESSURE RELIEF VALVE
TEMPERATURE AND
PRESSURE GAUGE
45 ~
F10583
WATER OUTLET
Figure 13. Recommended PRV Orientation
Temperature and Pressure Gauge
The temperature and pressure gauge is shipped loose.
Hydrostatic Test
Unlike many types of boilers, this boiler does not require
hydrostatic testing prior to being placed in operation. The
heat exchanger has already been factory-tested and is
UDWHGIRUSVLN3DRSHUDWLQJSUHVVXUH+RZHYHU
Raypak does recommend hydrostatic testing of the piping
connections to the boiler and the rest of the system prior
to operation. This is particularly true for hydronic systems
using expensive glycol-based anti-freeze. Raypak
recommends conducting the hydrostatic test before
connecting gas piping or electrical supply. Leaks must be
repaired at once to prevent damage to the boiler. NEVER
use petroleum-based stop-leak compounds.
Isolate boiler water connections from the system prior to
performing a hydrostatic test.
14
)OXVKLQJ&OHDQLQJRI6\VWHP3LSLQJ
Many of the chemicals used to perform this function will
harm the heat exchanger as well as some of the gaskets
and seals within the unit, causing a non-warrantable
failure. When required, Raypak recommends the boiler
be isolated from the system piping prior to flushing or
cleaning, using any cleaning agent.
System Sensor Installation
7KH 6\VWHP 6HQVRU 6 LV UHTXLUHG IRU DOO FDVFDGH RU
SULPDU\VHFRQGDU\SLSLQJFRQ¿JXUDWLRQVXQOHVVWKHXQLWV
¿ULQJUDWH ZLOOEH FRQWUROOHG E\ DQ H[WHUQDO VRXUFH VXFK
as our Temp Tracker MOD+ Hybrid sequencer. Proper
placement and method of installation are critical for proper
operation of the system.
The sensor must be installed in a drywell in conjunction
with heat conductive compound as shown in Figure 14.
The drywell must be installed no more than 5 equivalent
IHHWPRISLSHWXELQJGRZQVWUHDPRIWKHGHFRXSOHU
and installed in such a way that ensures the sensor bulb
LVLQWKHÀRZSDWKRQSULPDU\VHFRQGDU\FRQ¿JXUDWLRQVRU
HTXLYDOHQWIHHWPGRZQVWUHDPRIWKHODVWERLOHULQ
Primary Cascade systems.
A
CAUTION: Be careful when installing the drywell not
to over-tighten the well as this can damage the well and
PD\SUHYHQWWKHVHQVRUIURP¿WWLQJSURSHUO\
4 SYSTEM PIPE DIA
NOT TO EXCEED
12 IN. (305 mm)
5 FT. (1.5 M)
MAX
NOT TO SCALE
DRYWELL
SYSTEM
SENSOR
THERMAL PASTE
NPT FITTING
SYSTEM
PIPING
TO BOILER FROM BOILER
F10501
Figure 14. 6\VWHP6HQVRU,QVWDOODWLRQRQ3ULPDU\
Secondary Systems
5 FT. (1.5 M)
MAX.
NOT TO SCALE
F10500
BOILER 1
OUTLET
BOILER 2
OUTLET
COMMON
PIPING
Figure 15. System Sensor Installation on Cascade Primary
Systems
Hydronic Heating
Pump Selection
7KH ERLOHU LV GHVLJQHG IRU XS WR ) & ǻ7 DQG
FRQWLQXRXVUHWXUQWHPSHUDWXUHVIURP)WR)&
to 88°C).
NOTE: +LJKHU UHWXUQ WHPSHUDWXUHV PD\ OLPLW WKH ¿ULQJ
rate when the maximum water temperature of 200°F
(93°C) is approached.
MODEL
Flow Values GPM (lpm)
Max
Flow**
Min
Flow@100%*
Min
Flow*
Min Flow
ZLWKÀRZ
switch
(optional)*
406L 73 11 6 15
506L 73 14 7 15
606L 73 16 8 15
726L 114 19 10 18
856L 114 22 11 18
* Minimum flow based on H
2
O as heating media. Medias other than
H
2
O may require higher minimum flow rates.
** Maximum flow based on 7.5 feet per second velocity.
Table E. Flow Rate Values
NOTE: For systems using glycol, see Table F below for
necessary pumping requirements.
PARAMETER
CORRECTION
Ethylene Glycol Concentration (%)
0 25 30 40 50
Capacity Factor
Multiplier
1.000 0.972 0.960 0.928 0.878
GPM Correction
Multiplier
1.000 1.040 1.055 1.100 1.150
Table F. Glycol Correction Factors
15
Feedwater Regulator
Raypak recommends that a feedwater regulator be in-
VWDOOHGDQGVHWDWSVLN3DPLQLPXPSUHVVXUHDW
the highest point of the system. Install a check valve or
back flow device upstream of the regulator, with a manual
shut-off valve as required by local codes.
Piping
All high points should be vented. This boiler, when used in
connection with a refrigeration system, must be installed
so that the chilled medium is piped in parallel with the boiler
with appropriate valves to prevent the chilled medium from
entering the boiler. The piping system of a hot water boiler
connected to heating coils located in air-handling units
where they may be exposed to circulating refrigerated
DLU PXVW EH HTXLSSHG ZLWK ÀRZFRQWURO YDOYHV RU RWKHU
automatic means to prevent gravity circulation of the boiler
water during the cooling cycle. It is highly recommended
that the piping be insulated.
$LU6HSDUDWLRQ([SDQVLRQ7DQN
All boilers should be equipped with a properly-sized
H[SDQVLRQWDQNDQGDLUVHSDUDWRU¿WWHGDWWKHKLJKHVWSRLQW
in system.
3ULPDU\6HFRQGDU\3LSLQJ
NOTE: All hot water heating systems have unique levels
of operating diversity that must be accounted for in
the system design. The system should always include
DGHTXDWHV\VWHPÀRZLQH[FHVVRIWKHFRQQHFWHGERLOHU
ÀRZ IRU SURSHU RSHUDWLRQ RI WKH SULPDU\VHFRQGDU\
V\VWHP :KHUH WKH V\VWHP ÀRZ PD\ GURS EHORZ WKH
FRQQHFWHGERLOHUÀRZDEXႇHUGHFRXSOHUPD\EHQHHGHG
)DLOXUHWRGHVLJQIRUDGHTXDWHÀRZLHE\SDVVHVZD\
FRQWURO YDOYHV ÀRZOLPLWLQJ EDODQFH GHYLFHV EXႇHU
tanks, etc.) will result in boiler short-cycling and may
reduce boiler life. Always contact your local Raypak
representative for system design assistance to avoid
these issues.
$SSOLFDWLRQVDQG0RGHV3ULPDU\
Secondary Piping
The VERSA IC
®
system is designed for a wide range of
applications. The installer/design engineer should refer
WR WKHIROORZLQJ 0RGHV WR GHWHUPLQH ZKLFK EHVW ¿WV WKH
intended application and functionality for the unit being
installed.
XVers L boilers have three modes available to them to
address the various applications the units can be applied
to. For detailed information on the VERSA IC system, see
WKH 9(56$ ,& PDQXDO  7KLV PDQXDO FDQ EH
found in the document library at www.raypak.com.
Table G. Boiler Rates of Flow for Various System Pipe Sizes
Model
H7
Input Output
Min
Pipe
Size
inches
(mm)
)ǻ7 )ǻ7 )ǻ7 )ǻ7
Min Flow for full
¿UH)ǻ7
Max Flow
0%78+.ZK
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
GPM
/PLQ
ǻ3
ft.hd.
(kPa)
406L
399

392

2

39

3.5

26

2.8

20

2.5

13

2.4

10

2.3

73

6.7

506L
500

489

2

49

4.8

33

3.4

24

2.9

16

2.5

13

2.4

73

6.7

606L
600

585

2

59

4.4

39

3.2

29

2.8

20

2.5

16

2.3

73

6.7

726L
725

705

2 1/2"

71

4.9

47

3.5

35

3

24

2.7

19

2.6

114

8.7

856L
850

826

2 1/2"

83

5.7

55

3.9

41

3.3

28

2.8

22

2.6

114

8.7

Pipe sizing based on not exceeding 7.5 feet per second velocity.
ǻ3 )HHWRI+HDG
16
TO
SYSTEM
FROM
SYSTEM
BOILER
PUMP
FLOW METER
ASSEMBLY
(OPTIONAL)
ISOLATION
VALVE
(TYP)
MAX 5' (1.5m)
TO SYSTEM
SENSOR
4 SYSTEM PIPE
DIAMETERS OR
12" (305 mm) MAX
PRV
(PIPE TO DRAIN)
F10594
Figure 17. +\GURQLF3ULPDU\6HFRQGDU\3LSLQJ
Mode 1
This mode selection is for hydronic heating systems with
VLQJOHRUPXOWLSOHERLOHUVPD[LPXPERLOHUVLQSULPDU\
VHFRQGDU\SLSLQJFRQ¿JXUDWLRQZLWKRUZLWKRXW2XWGRRU$LU
5HVHW6 See Figure 16 and Figure 18.
The system temperature is controlled by the System
6HQVRU67KH%RLOHU3XPS3UXQVGXULQJDQ\FDOOIRU
KHDW7KH6\VWHP3XPS3UXQVZKHQHYHUWKHV\VWHP
is enabled for heating and the outdoor air temperature
LV ORZHU WKDQ WKH ZDUP ZHDWKHU VKXW GRZQ ::6'
WHPSHUDWXUHVHWWLQJLIXWLOL]HG
7KH%RLOHU3XPS3LVGHOD\HG³2ႇ´DVXVHUGH¿QHGLQ
WKH%2,/(5PHQXDQGWKH6\VWHP3XPS3LVGHOD\HG
³2ႇ´LQWKH$'-867PHQX
NOTE:,QFDVFDGHFRQ¿JXUDWLRQWKHV\VWHPSXPSDQG
DHW pump (if applicable) outputs from each cascade
member must be connected in parallel to activate the
system pump and DHW pump during “limp-along”
operation respectively. See VERSA IC Manual (5000.72)
for detailed information.
Maximum distance not to exceed
4 system pipe diameters
or 12" (305 mm)
1
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
S1
S2
P2
S4
P1
VERSA
PIM
MODBUS
ENABLE
0-10/4-20mA
S3
1
Figure 16. 0RGH6LQJOH%RLOHUZLWK3ULPDU\6HFRQGDU\3LSLQJ
17
Figure 18. 0RGH5HFRPPHQGHG%RLOHU&DVFDGHZLWK3ULPDU\6HFRQGDU\3LSLQJ
Maximum distance not to exceed
4 system pipe diameters or 12" (305 mm)
1
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
S1a
S2a
P2a
S3a
S1b
S2b
S1c
S2c
S1d
S2d
A
B C D
S4a
(MASTER)
PIM
VERSA
PIM
VERSA
PIM
VERSA
PIM
VERSA
P1a
MODBUS
0-10/4-20mA
ENABLE
P1b P1c
P1d
CONNECT SYSTEM PUMP
CASCADE FOLLOWER
IN PARALLEL FROM EACH
OUTPUT
1
Mode 2
This mode selection is for hydronic heating systems with
VLQJOHRUPXOWLSOHERLOHUVPD[LPXPERLOHUVLQSULPDU\
VHFRQGDU\SLSLQJFRQ¿JXUDWLRQZLWKRUZLWKRXW2XWGRRU$LU
5HVHW6ZLWKLQGLUHFW'+:RQWKHV\VWHPORRSZLWKRU
without priority). The system temperature is controlled by
WKH6\VWHP6HQVRU67KH,QGLUHFW'+:6HQVRU6
determines the indirect call/tank setpoint. See Figure 19
and Figure 20.
The system temperature is boosted to Target Max when
XVLQJWKH,QGLUHFW'+:6HQVRU6GXULQJDQLQGLUHFWFDOO
IRUKHDW3ULRULW\PRGHWRJJOHVRႇWKH6\VWHP3XPS3
when an indirect call for heat is present. The Boiler Pump
3UXQVGXULQJDQ\FDOOIRUKHDW7KH,QGLUHFW'+:3XPS
3UXQVGXULQJDQLQGLUHFWFDOOIRUKHDWZLWKQR³2ႇ´GHOD\
7KH %RLOHU 3XPS 3 LV GHOD\HG ³2ႇ´ as user-defined
LQ WKH %2,/(5 PHQX DQG WKH 6\VWHP 3XPS 3 LV
delayed ³2ႇ´ in the ADJUST menu. The System Pump
3 UXQV ZKHQHYHU WKH V\VWHP LV HQDEOHG IRU KHDWLQJ
and the outdoor air temperature is lower than the WWSD
WHPSHUDWXUHVHWWLQJLIXWLOL]HGXQOHVVDQLQGLUHFWFDOOIRU
heat is present with priority.
NOTE: See VERSA IC Manual (5000.72) for more
information on cascade systems.
Figure 19. 0RGH6LQJOH%RLOHUZLWK,QGLUHFWRQ6\VWHP/RRS3ULPDU\6HFRQGDU\3LSLQJ
S1
S2
P2
S4
P1
VERSA
PIM
MODBUS
ENABLE
0-10/4-20mA
S3
1
P3
S5
AQUASTAT
LOCATED IN
OUTLET PIPE
Maximum distance not to exceed
4 system pipe diameters
or 12" (305 mm)
1
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
18
Mode 3
This mode selection is for hydronic heating systems
ZLWK VLQJOH RU PXOWLSOH ERLOHUV PD[LPXP  ERLOHUV LQ
SULPDU\VHFRQGDU\ SLSLQJ FRQ¿JXUDWLRQ ZLWK RU ZLWKRXW
2XWGRRU$LU 5HVHW 6 ZLWK LQGLUHFW '+: RQ WKH ERLOHU
ORRS ZLWK SULRULW\ 6HH Figure 21 and Figure 22.The
system temperature is controlled by the Supply Sensor
6ZKHQHYHUWKHLQGLUHFWFDOOIRUKHDWLVnot active. The
'+:6XSSO\6HQVRU6GHWHUPLQHVWKHLQGLUHFWFDOOWDQN
VHWSRLQW 'XULQJ DQ LQGLUHFW FDOO IRU KHDW WKH ERLOHU ¿ULQJ
rate is determined by the water temperature at the Indirect
6XSSO\6HQVRU6DQGWKH7DUJHW0D[VHWWLQJZKHQXVLQJ
WKH,QGLUHFW'+:VHQVRU67KH%RLOHU,QMHFWLRQ3XPS
3UXQVGXULQJDOO KHDWFDOOV UHJDUGOHVVRI SULRULW\7KH
,QGLUHFW'+:3XPS 3 UXQV GXULQJ DQLQGLUHFW FDOO IRU
KHDWZLWKQR³2ႇ´GHOD\
Figure 20. 0RGH+HDWHU&DVFDGHZLWK,QGLUHFWRQ6\VWHP/RRS3ULPDU\6HFRQGDU\3LSLQJ
7KH %RLOHU,QMHFWLRQ3XPS3LVGHOD\HG³2ႇ´ DVXVHU
GH¿QHGLQWKH%2,/(5PHQXDQGWKH6\VWHP3XPS3
LVGHOD\HG³2ႇ´LQWKH$'-867PHQX
7KH 6\VWHP 3XPS 3 UXQV ZKHQHYHU WKH V\VWHP LV
enabled for heating and the outdoor air temperature
LV ORZHU WKDQ WKH ZDUP ZHDWKHU VKXW GRZQ ::6'
WHPSHUDWXUHVHWWLQJLIXWLOL]HGXQOHVVDQLQGLUHFWFDOOIRU
heat is present.
NOTE: A Tank Aquastat can be used in lieu of the Indirect
DHW Sensor (S5). See VERSA IC Manual (5000.72) for
additional details.
NOTE: See VERSA IC Manual (5000.72) for more
information on cascade systems.
S1 S2
P2
S4
P1
VERSA
PIM
MODBUS
ENABLE
0-10/4-20mA
S3
1
P3
S5
AQUASTAT
LOCATED IN
OUTLET PIPE
S6
Maximum distance not to exceed
4 system pipe diameters or 12" (305 mm)
1
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
S1a
S2a
P2a
S3a
S1b
S2b
S1c
S2c
S1d
S2d
A
B C D
S4a
(MASTER)
PIM
VERSA
PIM
VERSA
PIM
VERSA
PIM
VERSA
V1a
MODBUS
0-10 VDC
ENABLE
M
V1b
M
V1c
M
V1d
M
CONNECT SYSTEM PUMP
CASCADE FOLLOWER
IN PARALLEL FROM EACH
OUTPUT
P3
S5
AQUASTAT
LOCATED IN
OUTLET PIPE
= FACTORY INSTALLED SENSOR
= FIELD INSTALLED SENSOR
Maximum distance not to exceed
4 system pipe diameters or 12" (305 mm)
1
1
F10628
Figure 21. 0RGH6LQJOH%RLOHUZLWK,QGLUHFWRQ%RLOHU/RRS3ULPDU\6HFRQGDU\3LSLQJ
19
S1a
S2a
P2a
S3a
S1b
S2b
P1b
S1c
S2c
P1c
S1d
S2d
P1d
A
B C D
S4a
= FACTORY INSTALLED SENSOR
= FIELD INSTALLED SENSOR
(MASTER)
PIM
VERSA
PIM
VERSA
PIM
VERSA
PIM
VERSA
P1a
S5a
P3a
S6a
MODBUS
0-10/4-20mA
ENABLE
1
AQUASTAT
LOCATED IN
OUTLET PIPE
CONNECT SYSTEM
PUMP IN PARALLEL
FROM EACH CASCADE
FOLLOWER OUTPUT
1
Maximum distance not to exceed
4 system pipe diameters or 12" (305 mm)
1
F10629
Figure 22. 0RGH+HDWHU&DVFDGHZLWK,QGLUHFWRQ+HDWHU/RRS3ULPDU\6HFRQGDU\3LSLQJ
Applications and Modes - Primary Piping
The VERSA IC system is designed for a wide range of
applications. The installer/design engineer should refer
WR WKH IROORZLQJ 0RGHV WR GHWHUPLQH ZKLFK EHVW ¿WV WKH
intended application and functionality for the unit being
installed. XVers L boilers have two operational modes
available to them to address the various applications the
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NOTE: Ensure PIM DIP#3 = OFF when isolation valves
used on Primary Systems.
PRV
(PIPE TO DRAIN)
TO SYSTEM
ISOLATION VALVE
(TYP)
FROM SYSTEM
FLOW METER
ASSEMBLY
(OPTIONAL)
F10595
Figure 23. Hydronic Primary Piping
Mode 1
This mode selection is for hydronic heating systems with
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SLSLQJFRQ¿JXUDWLRQZLWKRUZLWKRXW2XWGRRU$LU5HVHW6
See Figure 24 and Figure 25.
For Single Boiler systems under primary piping
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WKH6\VWHP6HQVRU6DOWKRXJKZKHQ6LVFRQQHFWHG
the XVers L will use it for the system temperature. The
LVRODWLRQ YDOYH 9 LV H[SHFWHG WR RSHUDWH DV D VSULQJ
RSHQDFWXDWRU7RFORVHWXUQ2))WKH,VRODWLRQ9DOYH9
WKHFRQWURODSSOLHVSRZHUWRRSHQWXUQ21WKH,VRODWLRQ
9DOYH9WKHFRQWUROZLOOUHPRYHSRZHUWRWKHLVRODWLRQ
9DOYH9
7KH,VRODWLRQ9DOYH9RSHQVGXULQJDQ\FDOOIRUKHDW7KH
6\VWHP3XPS3UXQVZKHQHYHUWKHV\VWHPLVHQDEOHG
for heating and the outdoor air temperature is lower than
WKHZDUPZHDWKHUVKXWGRZQ::6'WHPSHUDWXUHVHWWLQJ
LIXWLOL]HG
7KH,VRODWLRQ9DOYH9LVGHOD\HG³2))´DVXVHUGH¿QHG
LQWKH%2,/(5PHQX3RVWSXUJHDQGWKH6\VWHP3XPS
3LVGHOD\HG³2))´LQWKH$'-867PHQX
NOTE: ,Q FDVFDGH FRQ¿JXUDWLRQWKHV\VWHP SXPS DQG
DHW pump (if applicable) outputs from each cascade
member must be connected in parallel to activate the
system pump and DHW pump during “limp-along”
operation respectively. See VERSA IC Manual (5000.72)
for detailed information.
20
NOTE: XVers L boilers are equipped with a “pilot duty”
dry contact to enable the system pump (P2a). In a
FDVFDGHFRQ¿JXUDWLRQLWLVUHFRPPHQGHGWKDWDOOV\VWHP
pump outputs from each unit are connected in parallel to
ensure proper operation of the system pump whenever
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HOHFWULFDO FRQ¿JXUDWLRQV DUH VXJJHVWHG ZKHQ LW LV QRW
possible to synchronize the system pump operation
with the boilers operation.
S1a
S2a
P2a
S3a
S1b
S2b
S1c
S2c
S1d
S2d
A
B C D
S4a
(MASTER)
PIM
VERSA
PIM
VERSA
PIM
VERSA
PIM
VERSA
V1a
MODBUS
0-10 VDC
ENABLE
M
V1b
M
V1c
M
V1d
M
CONNECT SYSTEM PUMP
CASCADE FOLLOWER
IN PARALLEL FROM EACH
OUTPUT
F10507
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
S1
S2
P2
S4
V1 Motorized isolation valve is optional
for single boiler systems
V1
VERSA PIM
MODBUS
ENABLE
0-10/4-20mA
M
FACTORY INSTALLED SENSOR
FIELD INSTALLED SENSOR
Figure 24. Mode 1 - Single Boiler with Primary Piping
Figure 25. Mode 1 - Recommended Boiler Cascade with Primary Piping
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Raypak XVers L 406L-856L Type H Mode d'emploi

Catégorie
Chauffe-eau
Taper
Mode d'emploi