Ingersoll-Rand 400 Manuel utilisateur

NIRVANA CYCLING REFRIGERATED DRYER

MODELS 200-400

OPERATORS MANUAL

C.C.N. : 80442775

DATE : APRIL 2007

REV. :B

Ensure that the operator reads and understands the

decals and consults the manuals before maintenance

or operation.

Ensure that the Operation and Maintenance manual is

not removed permanently from the machine.

Ensure that maintenance personnel are adequately

trained, competent and have read the Maintenance

Manuals.

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CONTENTS PAGE

1.0 CONTENTS 1

2.0 INTRODUCTION 2

3.0 WARRANTY 2

4.0 REFRIGERATED DRYER

NOMENCLATURE 2

5.0 RECEIVING AND INSPECTION 3

5.1 INSPECTION

5.2 UNPACKING AND HANDLING

6.0 SAFETY AND OPERATION

PRECAUTIONS 3

7.0 PRINCIPLES OF OPERATION 5

7.1 INTRODUCTION

7.2 AIR SYSTEM

7.3 MOISTURE REMOVAL SYSTEM

7.4 REFRIGERATION SYSTEM

7.5 THERMAL MASS CIRCULATING

SYSTEM

7.6 CONTROLS

7.6.1 BASIC USER INTERFACE

7.6.2 EXCHANGER TEMPERATURE

SET POINT AND ALARMS

7.6.3 ADJUSTING SET POINTS

7.6.4 ALARMS AND

THEIR FUNCTIONS

7.6.5 ALERT MESSAGES

7.6.6 START MODES

7.6.6.1 Manual Mode

7.6.6.2 Remote Mode (Optional)

7.6.6.3 Auto Restart

CONTENTS PAGE

8.0 INSTALLATION AND

INITIAL START-UP 8

8.1 LOCATION AND MOUNTING

8.2 PIPING AND VALVES

8.3 FILTRATION

8.4 ELECTRICAL CONNECTION

8.5 INITIAL START-UP

8.5.1 START- UP SEQUENCE

9.0 SCHEDULED MAINTENANCE 10

9.1 INTRODUCTION

9.2 REFRIGERANT CONDENSER

9.3 CONDENSATE DISCHARGE

SYSTEM

9.4 PANEL FILTER ELEMENT

9.5 PRE-FILTERS AND

POST-FILTERS

9.5.1 THREADED FILTERS

10.0 TROUBLESHOOTING 13

10.1 INTRODUCTION

10.2 PROBLEM / ACTION GUIDE

11.0 WIRING DIAGRAMS 15

12.0 GENERAL ARRANGEMENT 17

13.0 REPLACEMENT PARTS 18

14.0 ENGINEERING

SPECIFICATIONS 19

CONTENTS

Ingersoll Rand Nirvana™ Cycling refrigerated air dryer removes

moisture, oil vapor, and other contaminants from compressed air. These

contaminants are detrimental to pneumatically operated appliances,

controls, instruments, machinery and tools. This removal is

accomplished by cooling the air with a refrigeration unit to a temperature

at which moisture in the air is condensed and separated from the air

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stream. The temperature the air is cooled to, normally between 34° and

38°F (1° and 3°C), is known as dew point. This dryer can be easily

installed into various pneumatic systems in which dry air is required or

desired. Please refer to Principles of Operation for complete operating

details.

The Company warrants that the equipment manufactured by it and

delivered hereunder will be free of defects in material and workmanship

for a period of twelve months from the date of placing the Equipment in

operation or eighteen months from the date of shipment from the factory,

whichever shall first occur. The Purchaser shall be obligated to promptly

report any failure to conform to this warranty, in writing to the Company

in said period, whereupon the Company shall, at its option, correct such

nonconformity, by suitable repair to such equipment or, furnish a

replacement part F.O.B. point of shipment, provided the Purchaser has

stored, installed, maintained and operated such Equipment in

accordance with good industry practices and has complied with specific

recommendations of the Company. Accessories or equipment furnished

by the Company, but manufactured by others, shall carry whatever

warranty the manufacturers have conveyed to the Company and which

can be passed on to the Purchaser. The Company shall not be liable for

any repairs, replacements, or adjustments to the Equipment or any costs

of labor performed by the Purchaser or others without Company's prior

written approval.

The effects of corrosion, erosion and normal wear and tear are

specifically excluded. Performance warranties are limited to those

specifically stated within the Company's proposal. Unless responsibility

for meeting such performance warranties are limited to specified tests,

the Company's obligation shall be to correct in the manner and for the

period of time provided above.

THE COMPANY MAKES NO OTHER WARRANTY OR

REPRESENTATION OF ANY KIND WHATSOEVER, EXPRESSED OR

IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE, ARE HERBY DISCLAIMED.

Correction by the Company of nonconformities whether patent or latent,

in the manner and for the period of time provided above, shall constitute

fulfillment of all liabilities of the Company for such nonconformities

whether based on contract, warranty negligence, indemnity, strict liability

or otherwise with respect to or arising out of such Equipment.

The Purchaser shall not operate Equipment which is considered to be

defective, without first notifying the Company in writing of its intention to

do so. Any such use of Equipment will be at Purchaser's sole risk and

liability.

Note that this is Ingersoll Rand standard warranty. Any warranty in force

at the time of purchase of the equipment or negotiated as part of the

purchase order may take precedence over this warranty.

2.0 INTRODUCTION

3.0 WARRANTY

4.0 REFRIGERATED DRYER NOMENCLATURE

NOMINAL*

FLOW CONDENSER

PREFIX (SCFM) TYPE POWER RATING

NVC 200-400 A = AIR 2 = 230-1-60 0 = NEMA 1

W = WATER 4 = 460-3-60 H = NEMA 4

5 = 230-3-60

6 = 575-3-60

7 = 380-3-50

8 = 220-3-50

* Nominal Flows indicated are for 100°F inlet temperature, 100°F ambient temperature and 100 psig compressed air pressure.

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5.1 INSPECTION

Upon receiving your Ingersoll Rand air dryer, please inspect the unit

closely. If rough handling has been detected, please note it on your

delivery receipt, especially if the dryer will not be uncrated immediately.

Obtaining the delivery person’s signed agreement to any noted

damages will facilitate any insurance claims.

5.2 UNPACKING AND HANDLING

a

WARNING

Under no circumstances should any person attempt to lift heavy

objects without proper lifting equipment (i.e., crane, hoist, slings or fork

truck). Lifting any unit without proper lifting equipment, may cause

serious injury.

5.0 RECEIVING AND INSPECTION

To facilitate handling during shipment, all dryer packages have been

mounted on a base that provides for forklifting between two base

channels. Forks should extend all the way through forklift channels to

reduce unnecessary forces to the dryer during moving. Slings can be

used to lift the crates, but spreader bars must be used to prevent the

slings from exerting a force against the sides of the crates or the dryer.

6.0 SAFETY AND OPERATION PRECAUTIONS

Because an air dryer is pressurized and contains rotating parts, the

same precautions should be observed as with any piece of machinery

of this type where carelessness in operation or maintenance could be

hazardous to personnel. In addition to obvious safety rules that should

be followed with this type of machinery, safety precautions as listed

below must be observed:

1. Only qualified personnel shall be permitted to adjust, perform

maintenance or repair this air dryer.

2. Read all instructions completely before operating unit.

3. Pull main electrical disconnect switch and disconnect any separate

control lines, if used, before attempting to work or perform

maintenance on the unit.

4. Do not attempt to service any part while machine is in an operational

mode.

5. Do not attempt to remove any parts without first relieving the entire

air system of pressure.

6. Do not attempt to remove any part of the refrigeration system without

removing and containing refrigerant in accordance with the EPA and

local regulations.

7. Do not operate the dryer at pressures in excess of its rating.

8. Do not operate the dryer without guards, shields and screen in place.

9. Inspect unit daily to observe and correct any unsafe operating

conditions.

OSHA

Heading Descriptions

a

WARNING

“Warning” is used to indicate a hazardous situation which has some

probability of death or severe injury. Warning should not be considered

for property damage accidents unless personal injury risk is present.

a

CAUTION

“Caution” is used to indicate a hazardous situation which may result in

minor or moderate injury.

a

NOTICE

“Notice” is used to indicate a statement of company policy as the

message relates directly or indirectly to the safety of personnel or

protection of property. Notice should not be associated directly with a

hazard or hazardous situation and must not be used in place of

“Danger,” “Warning,” or “Caution.”

a

NOTICE

The user of any air dryer manufactured by Ingersoll Rand, is hereby

warned that failure to follow the above Safety and Operation

Precautions may result in personal injury or equipment damage.

However, Ingersoll Rand does not state as fact, nor does it mean to

imply, that the preceding list of Safety and Operating Precautions is all

inclusive, and further, that the observance of this list will prevent all

personal injury or equipment damage.

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6.0 SAFETY AND OPERATION PRECAUTIONS

Air Under Pressure Will Cause

Injury, Death Or Property Damage.

• Do Not Exceed Pressure Rating.

• Relieve Press. Before Servicing.

• Do Not Modify/Repair/Rework

ASME Coded Pressure Vessels

As Insurance Rating Affected.

READ TECHNICAL MANUAL

ELECTRICAL CONNECTION BOX

All Customer Connections To Be Made At This Location.

See Terminal Connection Diagrams, below.

Be Certain To Follow All NEC, State, Local and Other Applicable

Codes During Installation.

1

2

3

4

5

6

GRN

WHT

BLK

G

N

L1

FACTORY

WIRING

INCOMING

LINE VOLTAGE

100-125VAC

1PH/50-60HZ

(BY OTHERS)

(REFER TO UNIT

NAMEPLATE FOR

POWER

REQUIREMENTS)

100-125VAC / 1 PH

1

2

3

4

5

6

GRN

BLK

G

L1

RED

L2

FACTORY

WIRING

INCOMING

LINE VOLTAGE

200-240VAC

1PH/50-60HZ

(BY OTHERS)

(REFER TO UNIT

NAMEPLATE FOR

POWER

REQUIREMENTS)

200-240VAC / 1 PH

1

2

3

4

5

6

GRN

RED

WHT

G

L1

L2

BLK

L3

FACTORY

WIRING

INCOMING

LINE VOLTAGE

200-575VAC

3PH/50-60HZ

(BY OTHERS)

(REFER TO UNIT

NAMEPLATE FOR

POWER

REQUIREMENTS)

200-575VAC / 3 PH

•

ELECTRICAL CONNECTION BOX

CONTAINS HIGH VOLTAGE

• Turn Off Power And Lock Out At ALL Sources Before Opening

To Perform Service.

• Remote Alarm Contact Wiring Has Control Power From

Separate Source.

READ TECHNICAL MANUAL

Air Under Pressure Will Cause

Injury, Death Or Property Damage.

• Relieve Press. Before Servicing.

• Condensate Drain Discharges

Under Pressure.

• Drain Requires Periodic

Cleaning (Service).

READ TECHNICAL MANUAL

Removing fuses will not disconnect

power from dryer. Always disconnect

power from ALL sources before

performing service.

READ TECHNICAL MANUAL

HIGH VOLTAGE

This unit is charged with

refrigerant under high pressure.

FAN MAY AUTOMATICALLY

START AT ANY TIME

Alternate three-phase wiring may be black / black / black.

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7.1 INTRODUCTION

Ingersoll Rand Nirvana™ Cycling dryers remove moisture from

compressed air by cooling the air temperature to between 34° and 38°F

(1 and 3°C). This causes vapors to condense into liquid droplets which

can then be easily removed from the air. The major systems of the dryer

which contribute to its operation are the Air System, the Moisture

Removal System, the Refrigeration System, the Thermal Mass

Circulating System and the Controls. The following paragraphs

describe each of the systems in greater detail.

7.0 PRINCIPLES OF OPERATION

7.2 AIR SYSTEM

The air system consists of the dryer components which are in contact

with the compressed air. Referring to Figure 1 and following the bold

“

AIR FLOW

,” hot saturated air from the compressor enters the

precooler/reheater where the air temperature is reduced prior to

entering the chiller by the cool air exiting the air/moisture separator. This

precooling allows for the use of a smaller refrigeration system. The air

then goes into the chiller section where it is further cooled to the desired

dew point by a thermal mass fluid. The temperature of the thermal mass

fluid is maintained by the refrigeration circuit and controls. The air

continues to the separator where moisture is removed, thereby, allowing

the cool, dry air to return back to the precooler/reheater to be heated by

the incoming moist hot air. The air exiting the “reheater” portion of the

dryer should be approximately 15°- 20°F lower than the inlet air

temperature based on standard conditions at full rated flow.

FLOW DIAGRAM

FIGURE 1

7.3 MOISTURE REMOVAL SYSTEM

Ingersoll Rand condensate drains discharge condensed moisture and

lubricants (condensate) from compressed air equipment. The

condensate drain operates as a zero-air-loss drain, returning air that is

displaced in the drain bowl back into the compressed air system.

Consistent discharging of condensate from compressed air equipment

is essential for proper equipment operation and performance.

The condensate drain uses a unique sensing method to determine the

level of condensate in the drain bowl. A transducer located in the drain

bowl continuously sends out a signal 50 times per second. Once the

transducer determines that the level of condensate has reached a

predetermined level within the drain bowl, a signal is sent to the no-loss

drain valve to open. This operation permits removal of condensate of up

to 80 gallons per hour.

The drain also features a test button that permits manual operation of

the no-loss drain valve. Depressing the test button illuminates the LED

and energizes the solenoid valve. The LED illuminates to indicate

"POWER ON" and goes off when the no-loss drain valve is operated by

the transducer or manual test button.

The condensate flows through the feed line into the drain unit and

accumulates in the container. A capacitive sensor continuously registers

the liquid level and passes a signal to the electronic control as soon as

the container is filled. The pilot valve is then activated and the

diaphragm opens the outlet line for discharging the condensate. When

the drain unit has been emptied, the outlet line is closed again quickly

and tightly without wasting compressed air."

7.4 REFRIGERATION SYSTEM

The Refrigeration System consists of all the components which handle

R-404A. This is a hermetically sealed closed-loop system. Referring to

Figure 1 and following the phantom “

REFRIG(R-404A) FLOW,” refrigerant

is shown leaving the evaporator section where, in the process of

removing heat, it is changed from a low pressure liquid into a low

pressure gas. This gas enters the suction side of the compressor where

it is compressed into a high pressure gas. The high pressure gas is

cooled in the condenser section until it becomes a high pressure liquid.

It then goes through a permanent filter dryer that ensures the

refrigeration system is free of contaminants. A small diameter capillary

tube (expansion valve on water-cooled dryers) meters the refrigerant for

introduction into the evaporator. The refrigerant pressure is reduced

upon entering the evaporator where as it evaporates, removes heat from

the thermal mass fluid.

PROCESS AND

INSTRUMENTATION

DIAGRAM

NVC200-400

AIR AND

WATERCOOLED

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7.0 PRINCIPLES OF OPERATION

7.5 THERMAL MASS CIRCULATING SYSTEM

The thermal mass fluid in a Ingersoll Rand Nirvana™ Cycling dryer is

continuously circulated in a closed pump loop system. Referring to

Figure 1 and following the dashed “

THERMAL FLUID

” line, the heat is

removed from the fluid in the evaporator by the refrigeration system.

The thermal mass reservoir is sized to minimize refrigeration cycles

during reduced air load periods. The thermal mass fluid is pulled from

the bottom of the reservoir and pumped through the chiller, removing

heat from the air and then returned to the evaporator. The pump utilized

on the Ingersoll Rand Nirvana™ Cycling dryer is a maintenance-free,

quiet cartridge circulator pump similar to those used in residential water

systems. While the refrigeration system cycles on and off based on

loading conditions, the circulating pump runs continuously to maintain

flow through the chiller at all times. Note that when the power switch is

set to the off position, the circulating pump will not operate.

7.6 CONTROLS

The Ingersoll Rand NVC200-400 Series dryers incorporate automatic

controls for proper operation. The thermal mass fluid temperature is

maintained by a microprocessor control that monitors the temperature

and cycles the refrigeration system in response to varying air flow and

temperature. Upon an increase in the temperature of the thermal mass

fluid, the refrigeration compressor is cycled on. When the fluid is cooled

to two deg.F below its control set point, the refrigerant compressor is

cycled off. The thermal mass fluid functions as a thermal storage mass

in the NVC Series dryer.

A low pressure cut out (LPCO) switch is provided for all NVC series

dryers. This switch is factory set to open at 20 psig. If the refrigerant

suction pressure draws below 20 psig, the LPCO opens to shut off the

refrigerant compressor. Once the switch has opened, it will prevent the

compressor from running until the suction pressure rises above 60 psig

and the LPCO has been manually reset.

All water cooled units come with a high pressure cut out (HPCO) switch.

This switch is set to open at 320 psig and close at 270 psig. To

compensate for water temperature variation, it may be necessary to

adjust the water regulating valve to maintain a 250 psig discharge

pressure. Adjustment can be done by rotating the adjusting screw

counterclockwise for an increase in discharge pressure. For conditions

where low water temperature and/or high water pressure are expected

it is advisable to install a water pressure regulator ahead of the

condenser.

7.6.1 BASIC USER INTERFACE

The Controller provides the user with information about the

dryer’s operation and alarms.

The following illustration summarizes the keypad functions.

BUTTONS

• ON / OFF

Toggles the dryer operation between "On Line" and “Off Line” status;

Energizes glycol pump. Note that the refrigeration system will operate based

on temperature.

• EXCH SET

When depressed, will display the current exchanger set point in the LCD

window. While the exchanger set point is displayed, the up and down arrows

may be used to increase or decrease the exchanger set point temperature.

• ALARM RESET

Pressing once clears the local alarm indication and de-energizes the remote

alarm contact. Should the alarm condition persist, the alarm will return after

the alarm inhibit time has expired.

• % SAVINGS

Depressing once changes LCD display to indicate ratio of refrigeration system

running time vs. total dryer ON time.

• °F / °C

Toggles the LED temperature indicators between Fahrenheit and Celsius units

of measure.

• + / -

Allows user to modify set point values. Set point values cycle through a fixed

range.

LIGHTS

• LCD Display

Displays exchanger temperature during normal operation. Also used to

display exchanger temperature set point, alarm condition and timing functions.

• SYSTEM ENERGIZED

Indicates when power is applied to unit.

• DRYER ON

Illuminated when the On/Off switch has been pressed to place the unit in

operation. The refrigerant system may start at any time when the light is on.

• REFRIGERATION COMPRESSOR ON

Indicates that the refrigeration system is operating.

• DEGREES F / DEGREES C

Indicates the temperature units of measure.

• HIGH TEMP ALARM

Indicates that the exchanger temperature has risen to 10°F or 5°C above the

exchanger temperature set point.

• LOW TEMP ALARM

When activated, indicates that the exchanger temperature has dropped below

29°F or -2°C. This condition stops the compressor. The compressor will not

restart until the temperature has risen two degrees above exchanger set point.

ADJUSTMENT

SCREW

FIGURE 2

WATER REGULATING VALVE

7.6.2 EXCHANGER TEMPERATURE SET POINT AND ALARMS

The Controller allows the user to configure the dryer’s

Exchanger Temperature Setpoint to operate according to site

conditions. The Controller is shipped from the factory with the

exchanger temperature having a default value of 38 deg.

7.6.3 ADJUSTING SET POINTS

Accessing and manipulating the Exchanger Temperature

Setpoint is accomplished as follows.

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7.0 PRINCIPLES OF OPERATION

The alarm names and a brief description of each are described in

detail below.

HIGH TEMPERATURE ALARM

When the thermal mass (glycol) temperature reaches the alarm set

point, the alarm will be activated. This alarm condition may not

necessarily damage the dryer when subjected to long-term exposure.

It may, however, have a significant impact on downstream processes

and thus should be investigated upon detection. Note that this alarm

will not shut down the dryer. This alarm will activate the remote alarm

contact and reset automatically once the alarm condition is rectified.

LOW TEMPERATURE SAFETY ALARM

If the dryer chiller temperature falls below the factory set point, the

alarm routine will activate. This alarm condition may cause damage to

the dryer when subjected to continuous or long-term exposure. Note

that this alarm will shut down the dryer after a response time delay.

This alarm will activate the remote alarm contact and reset

automatically once the alarm condition is rectified.

7.6.5 ALERT MESSAGES

The Controller features the following readouts to communicate the

status of the dryer’s operation.

EXCH.

SET

Pressing EXCHANGER SETPOINT button will change the display to

show the current setpoint.

36

Pressing the UP or DOWN arrows modifies the EXCHANGER

SETPOINT in one degree increment.

37

Pressing the UP or DOWN arrows modifies the EXCHANGER

SETPOINT in one degree increment.

38

The Controller accepts the last setpoint. After 5 seconds, the readout

will return to displaying the current Exchanger Temperature.

38

a

CAUTION

Do not set the Exchanger Temperature greater than 50 deg.F. Running

dryer at an Exchanger Temperature higher than 50 deg.F may damage

refrigeration system.

7.6.4 ALARMS AND THEIR FUNCTIONS

The Controller indicates critical alarms to alert the user of an

out of tolerance condition. Once each alarm condition is

detected, the appropriate LED indicator will illuminate and the

remote alarm contact will close.

Alarm Display Alarm Set Point

HIGH TEMPERATURE

ALARM

HI TEMP ALARM EXCH SETPOINT + 10 °F

LOW TEMPERATURE

ALARM

LOW TEMP ALARM 28 °F

Indicates a probe failure. This condition

is usually caused by a probe being

unplugged, damage to the probe lead or

a defective probe.

PF

Indicates that the refrigerant compressor

will not start until the end of a three

minute safety delay. The display of “cd” is

immediately followed by the number of

minutes left in the delay. This is a normal

function of the controller and not a fault

indication.

cd

7.6.6 START MODES

The NCV200-400 dryers are capable of starting in one of the

following start modes:

7.6.6.1 Manual Mode

After power is supplied to the dryer, the LCD display will

indicate the chiller temperature as well as the time remaining

for the safety delay. Once the delay has timed out,

depressing the On/Off button will permit the refrigeration

system to operate. Should the chiller temperature be greater

than the set point, the refrigeration system will energize.

Should the chiller temperature be below the set point, the

refrigeration system will remain off until the chiller temperature

rises to the setpoint.

7.6.6.2 Remote Mode (Optional)

This mode of operation allows the user to control the dryer

remotely and requires the installation of a customer-supplied

contact. With power applied to the dryer and once the safety

delay has timed out, the dryer will start once the remote switch

is closed. In addition, this mode of operation still permits

manual control of the dryer via the On/Off pushbutton on the

local control panel. Note that if the dryer was turned "On"

from the remote switch and then turned "Off" via the local

control panel, the remote switch must be turned "Off" and then

"On" to reinstate the dryer.

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7.0 PRINCIPLES OF OPERATION

7.6.6.3 Auto Restart

Should the dryer lose power while in the "On" mode, the dryer

will revert to the "On" mode once power is restored. Similarly,

should power be removed from the dryer while the dryer is in

the "Off" mode, the dryer will remain in the "Off" mode once

power is restored until the On/Off switch is depressed or the

remote switch is closed.

8.0 INSTALLATION AND INITIAL START-UP

8.1 LOCATION AND MOUNTING

The dryer should not be located in an area where ambient temperature

is likely to exceed 113°F (45°C) or be less than 50°F (10°C). The dryer

must be located in an area that provides sufficient clearance from walls

and other adjoining equipment to allow easy access for servicing and

maintenance requirements. A minimum of 18 inches is required to allow

free flow of air to the condenser inlet.

On installations with a relatively steady flow rate, the dryer is normally

connected after the air receiver. If loads fluctuate widely, the dryer

should be positioned ahead of the receiver and sufficient storage

capacity downstream is necessary to prevent excessive air flow through

the dryer.

When installed after any compressor that causes significant vibration or

air pulsation, such as reciprocating compressors, proper vibration

isolation and pulsation dampening devices should be added to protect

the dryer.

a

NOTICE

Failure to comply to the above instructions may result in equipment

malfunction and will void warranty.

a

NOTICE

Always use a backup wrench when making any threaded connection

to the dryer. Failure to use a backup wrench may result in damaged

tubing and components internal to the cabinet.

8.2 PIPING AND VALVES

Install piping, fittings and accessories as required for specific site

conditions and requirements. Figure 3 indicates a typical piping

arrangement for a refrigerated dryer, including dryer and filter bypasses.

This figure can be used as a guide for valve and accessory placement

in the system.

Ingersoll Rand NVC200-400 models come factory installed with a drain

isolation valve (D). The isolation valve permits maintenance of the

automatic drain without isolating air flow to the dryer. To operate dryer,

all valves shown in Figure 3 are to be closed except valves (B), (C) and

(D). Valve (A) is used for bypass purposes and valve (E) is for test and

manual drain purposes.

8.3 FILTRATION

To protect the air dryer from gross contamination associated with

compressor oil and debris and ensure maximum dryer performance, a

pre-filter is recommended. Pre-filters and post-filters sized to your drying

application can be provided by Ingersoll Rand and are available factory

installed. Call your local distributor to select the filter that best suits your

filtration requirements. In addition to air filtration, condensate discharge

oil/water separators are also available to address stringent EPA

regulations.

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8.0 INSTALLATION AND INITIAL START-UP

FIGURE 3

TYPICAL PIPING ARRANGEMENT

8.4 ELECTRICAL CONNECTION

Equipment is available in various electrical configurations. All customer

connections can be made at the terminal connections located in the

customer electrical connection box on the rear of the dryer. (Refer to

General Arrangement and appropriate Wiring Diagrams.)

A suitable fused disconnect switch or circuit breaker, in accordance with

national and local code requirements, is recommended for all Ingersoll

Rand equipment. Refer to Section 13 for voltage requirements and

load.

a

CAUTION

Never wire directly or connect any additional wires to the compressor

junction box. This will cause severe system malfunction.

8.5 INITIAL START-UP

a

NOTICE

For water cooled models, the water valve must be manually opened to

ensure that the condenser is full of water prior to start-up.

8.5.1 START- UP SEQUENCE

• Apply power to dryer. LCD Panel will illuminate. The Anti-

Short Cycle delay will commence counting down.

a

NOTICE

After installation or a prolonged shutdown, start the dryer with no air

load (no air flow). This enables the dryer to reach its proper operating

temperature in the shortest time possible (typically within 30 minutes

for Nirvana™ Cycling dryers).

• Start Dryer, using one of the following methods, depending

on Start Mode setting:

Manual Mode - Press the ON pushbutton.

Auto Restart Mode - No additional action required

Remote Automatic Mode - Close the remote contact.

AIR

DRYER

OIL

SEPARATOR

DRAIN

VALVE

CHECK

VALVE

CHECK

VALVE

CHECK

VALVE

DRAIN

VALVE

CHECK

VALVE

PREFILTER

B

A

C

AIR OUT

AIR IN

UNIT AS DELIVERED

OPTIONAL ACCESSORY ITEMS

NOTE:

DRAIN TUBE MUST NOT RISE OR BE CONNECTED TO

EXCESSIVELY LONG PIPE WHICH MAY CREATE BACK PRESSURE

A CONNECTION TO OPEN FLOOR DRAIN IS REQUIRED

DE

PRE-FILTER

Nirvana Cycling Refrigerated Dryer Models 200-400

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10

9.0 SCHEDULED MAINTENANCE

9.1 INTRODUCTION

Ingersoll Rand Nirvana™ Cycling refrigerated air dryers require little

maintenance. These dryers utilize hermetically sealed compressors

which do not require any lubrication. Fan motors require lubrication at

both oil ports every six months. Ingersoll Rand recommends component

inspection and service at regular intervals to obtain maximum

performance from your dryer.

9.2 REFRIGERANT CONDENSER

For standard dryers, regular inspection and cleaning of the condenser is

recommended. Ingersoll Rand dryers may be equipped with an optional

ambient air filter designed to protect the condenser from dirt and debris

that can accumulate on the condenser. For proper operation with this

option, it is imperative that this filter be inspected and cleaned on a

regular basis. Annual replacement of the filter is recommended. For

applications where excessive dirt, dust or debris is encountered, more

frequent inspection and cleaning may be required.

8

9

5

6

7

1

6

2

4

1

3

10

89

5

7

1

3

2

4

9.3 CONDENSATE DISCHARGE SYSTEM

a

WARNING

Before drain maintenance work, always close the drain isolation ball

valves and ensure that the device is pressureless and de-energized.

Maintenance recommendations

Replace service unit (5) annually.

Remove control unit (1) by pressing latching hook (2).

Detach Drain from outlet (3).

Remove design shell (4) (where applicable) using a

screw driver (10).

Remove service unit (5) from pipe at inlet by undoing

union nut

or

by undoing screws (6) at elbow connector (7)

or

by undoing screws (8) at intermediate adapter (9)

which is then detached from the service unit by

downward movement.

• Check if new service unit (5) matches control unit (1)

- type designation and colour of latching hook (2)

• Fit new service unit (5) in reverse order

• Open drain isolation ball valve. Press drain test button to verify proper

drain operation.

2

1

3

4

5

6

7

11

Nirvana Cycling Refrigerated Dryer Models 200-400

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9.4 PANEL FILTER ELEMENT

Annual replacement of the panel filter element is recommended. To

replace the panel filter element, remove the panel filter by pulling up and

out of its slots, then fit the new element in.

9.5 PRE-FILTERS AND POST-FILTERS

a

WARNING

Depressurize the system before disassembling filters. Failure to do so

may result in injury or death.

Filter elements should be changed as indicated on the pressure

differential gauge. Change carbon elements when hydrocarbons are

first detected downstream or every six months, whichever comes first.

Certain filters contain multiple elements. When replacing filter elements,

all elements should be replaced simultaneously. Mixing new and old

elements can result in reduced air quality.

9.5.1 THREADED FILTERS:

NO-LOSS DRAIN VALVE

✐

GP,HE,DP 19-1380

?

2

5

4

3

2

1

6

4

3

1

Assembly Control unit onto service unit:

Check if service unit (3) matches control unit (1) (type designation and

colour of latching hook)

Check if sensor tube plate (5) with contact springs (4)

is clean, dry and free from foreign matter.

Insert sensor (2) into sensor tube plate (5).

Fit latching hook (6) of control unit (1) into sensor tube

plate (5).

Press control unit (1) against service unit (3) and snap

into place

• Open drain isolation ball valve. Press drain test button to verify proper

drain operation.

2

1

3

4

9.0 SCHEDULED MAINTENANCE

20

(68)

30

(86)

40

(104)

50

(122)

1,000

10,000

˚C

˚F

`

✐

AC19-1380

✐

hrs

12

Nirvana Cycling Refrigerated Dryer Models 200-400

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9.0 SCHEDULED MAINTENANCE

1

2

1

2

4

5

6

7

1

2

3

4

2

1

3a

3b

1

2

1

2

5

2

1

3

4

16mm

(5/8”)

1

✔

✘

4

✔

✘

6

7

89

1

3

1

2

13

Nirvana Cycling Refrigerated Dryer Models 200-400

http://air.irco.com

PROBLEM

Moisture down stream

SYMPTOM(S

)

Dryer is properly cooling air

stream (Check Chiller. Temp

on controller)

Inlet and outlet temperatures

are the same.

Inlet and outlet temperatures

are the same.

Compressor and fan are

running, exchanger temp

high, pump not running.

POSSIBLE CAUSE

Condensate drain failure

caused by defective service

unit.

Excessive flow

Dryer by-pass valve not

closed

No power to the dryer

High suction pressure

Refrigerant leak

Compressor not

running and

fan is running

Compressor and fan not

running.

Compressor and fan not

running. Controller indicates

compressor is ON.

Defective Pump

CORRECTIVE ACTION

Replace service unit.

Check inlet and outlet pressure and system

design capacity. Correct cause of excessive flow.

Close by-pass valve

Check power supply and fuses/circuit

breakers

Check and clean condenser.

Check suction pressure gauge if reading is

0 psig, turn dryer off and contact your

distributor

Check and clean condenser.

Check ambient temperature and reduce

below 113°F

Check Chiller Temperature

Check MAIN CONTROL fuse.

Compressor relay may be bad, replace relay

Check for loose wire connections at

contactor or loss of power at control board

Defective control board - replace as

necessary

Contact your local distributor for further

assistance.

Contact your local distributor for further

assistance.

a

WARNING

An air dryer always operates under pressure. Any maintenance

procedure that involves disassembly of pipe fittings, valves or any

other components requires the dryer be isolated from the compressed

air stream and fully depressurized.

a

WARNING

Prior to working on the unit, make sure that all circuit breakers or

disconnected switches are tagged “Out of Service.”

10.2 PROBLEM / ACTION GUIDE

10.0 TROUBLESHOOTING

10.1 INTRODUCTION

Ingersoll Rand Nirvana™ Cycling dryers are designed for reliable, trouble-free operation. In the event of any dryer malfunction, the guide below

has been developed to facilitate problem identification and corrective actions.

14

Nirvana Cycling Refrigerated Dryer Models 200-400

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10.0 TROUBLESHOOTING

PROBLEM

Apparent controller display

malfunction

High pressure drop across

dryer

Condensate drain does not fire

Condensate drain LED is off

Air bleed from condensate

drain outlet port

Condensate drain bowl does

not seem to fill with

condensate, drain does not

seem to work due to air

locking

SYMPTOM(S

)

Display Blank

Unrealistic temperature

displayed

Erratic or inaccurate

temperature readings

Unrealistic pressure

displayed

Outlet pressure substantially

lower than inlet pressure

System operating

temperature is above 32°F

Outlet pressure substantially

lower than inlet pressure

System operating

temperature is below 32°F

POSSIBLE CAUSE

Blown Fuse

Board Failure

Probe loose,off connection or

defective probe

Probe not completely in

thermal well

Defective probe

Transducer loose, off

connection or defective

transducer

Inlet and outlet valves not

completely open

Inlet and outlet filters blocked

up

Compressor relay / contactor

stuck.

Microprocessor Control relay

bad

Probe not completely in

thermal well

Problem persists

Inlet / outlet pipe internal

diameter too small causing

air-lock or back pressure.

Excessive use of bends /

elbows in inlet / outlet pipe

work causing air-lock/ back

pressure.

Outlet pipe too long / too

high causing back pressure.

More than one condensate

source connected providing

alternative path for

condensate.

Debris trapped under seal.

Damage to seal.

CORRECTIVE ACTION

Check Fuses

Contact your local distributor for further

assistance.

Inspect probe cable and terminal connection

Replace probe

Inspect probe and check readings against

independent source (eg. temperature

analyzer/pyrometer/ice bath) both in

temperature well and to ambient

Replace probe

Inspect transducer cable and terminal

connection

Replace transducer

Open valves

Change filter elements

Replace relay / contactor.

Replace relay

Inspect probe and check readings against

independent source (eg. temperature

analyzer/pyrometer/ice bath) both in

exchanger well and to ambient

Turn dryer off and consult your local

distributor for further assistance

Check installation is in accordance with this

manual. Revise installation accordingly.

Replace with larger diameter piping.

Reduce the amount of bends and elbows.

Reconfigure condensate piping.

Reroute condensate to eliminate secondary

path. Install check valves as required.

Check power supply. Press test button for

minimum 2 seconds and observe. Locate

and eliminate supply fault.

Press and hold the test button to clear (drain

valve will open). Replace seal with Service

Kit.

If bottom inlet is used, top port must be used

as air bleed. Make sure Connect the top

inlet to a higher point in system, which will

function as an air bleed for the drain.

15

Nirvana Cycling Refrigerated Dryer Models 200-400

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WHT

RED

WHT

200VAC THRU

380VAC THRU

CONNECTION

DRAIN SV (SV)

CONNECTIONS

TO REMOTE ALARM BY OTHERS (OPTIONAL)

5A/120VAC MAX

REMOTE ALARM CONTACT

REMOTE START/STOP

CUSTOMER SUPPLIED

{

SWITCH

{

WARNING: DISCONNECT POWER TO DRYER

AT CUSTOMER SOURCE BEFORE SERVICING

SHOCK HAZARD: SOME CIRCUITS MAY BE

LIVE WHEN DRYER IS TURNED OFF

3

CR1

TS-3

12

WHT

PUMP (PM)

CONNECTIONS

GND

RED

WHT

GRN

5

4

TS-2

1234

YEL

RED

YEL

WHT

RED

6

DRYER ELECTRICAL COMPARTMENT FRONT PANEL

DRYER ELECTRICAL COMPONENTS

DRAIN/PUMP HOT

RED

COMPR HOT

COMPR

ALARM HOT

PUMP/DRAIN

DRAIN TIMER

WHT RED BLK BLK

24VAC

H

POWER

N

J1

SENSORS

J4

MICROPROCESSOR BOARD

YELLOW

ALARM

DRYER ELECTRICAL COMPARTMENT

SHIELDED PAIR

TEMPERATURE

TO EXCHANGER

THERMOWELL

PROBE

J5

240VAC

480VAC

(TYPICAL)

HOLES IN

ELECTRICAL

COMPARTMENT

GROMMETED

* SEE NOTE 3

BLK

FAN

BLK

SEE NOTE 2.

CUT OUT SW.

HIGH PRESS

HPCO

GRN

BLK

(C1)

L1

CONTACTOR

RED

H2H1

200V

TRANSFORMER

WHT

GRN

RED

XFMR1

115V

GRN

LUG

GROUND

SIDE

THRU

480V

SIDE

H4

H3

BLK

WHT

RED

FU2

FU1

BLK

PRIMARY

FUSES

XFMR SECONDARY

FUSE - FU3-250V

CUT OUT SW.

RED

LOW PRESS

LPCO

GRN

RED

NOTES:

1. CUSTOMER POWER HOOK UP AT THE TERMINAL STRIP IN THE ELECTRICAL CONNECTION BOX IN THE

DRYER REAR ON L1, L2, L3 & GND.

2. HPCO INCLUDED WITH WATERCOOLED UNITS ONLY.

3. FAN MOTOR NOT INCLUDED ON WATERCOOLED UNITS.

4. OUTLET NOT PROVIDED ON NEMA 4 OR WEATHERPROOF OPTIONS.

5. -------- DENOTES OPTIONAL EQUIPMENT.

550037

WIRING DIAGRAM

NVC200 AIR AND WATERCOOLED

230/1/60, 220/1/50

BLK

L2

3

CONNECTIONS

CUSTOMER

TB-1

4

L3

1

2

G

L1

GRND SCREW

GRN

BLK

GRN

{

208-230 VAC/1PH/60HZ

BY OTHERS

INCOMING LINE VOLTAGE

200-220 VAC/1PH/50HZ

BLK

RED

BLK

NVC200A & W - CSR TYPE

ZEKS# 682558 EMBRACO# J9232GK BOM# 963ND

5

GROUND

4

BLK

COMP

OL

3

C

RS

WHT

RED

GND

230V/1PH/60HZ

COMPRESSOR

CONNECTIONS

1

START

RUN

4

1

COMPRESSOR

CAPACITOR

ENCLOSURE

RELAY AND

2

RED

BLK

GRN

ELEC. PLUG

G

MAX LOAD 0.50 A

SEE NOTE 4

NL1

GRN

WHT

6. ALTERNATE 30 POWER LEADS MAY BE BLACK, RED, WHITE.

11.0 WIRING DIAGRAMS

WIRING DIAGRAM

NVC200 AIR AND

WATERCOOLED

230/1/60, 220/1/50

16

Nirvana Cycling Refrigerated Dryer Models 200-400

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11.0 WIRING DIAGRAMS

WHT

RED

WHT

200VAC THRU

380VAC THRU

CONNECTION

GRND SCREW

{

230-575 VAC/3PH/60HZ

5

DRAIN SV (SV)

BY OTHERS

CONNECTIONS

6

CUSTOMER

CONNECTIONS

TERM STRIP

TS-1

BLK

L3

INCOMING LINE VOLTAGE

200-440 VAC/3PH/50HZ

2

3

4

GRN

BLK

GRN

L2

L1

G

1

* SEE NOTE 4

575V/3PH TO 460V/3PH AUTOTRANSFORMER WIRING

575V

XFMR 1

L3

L2

X1

XFMR 2

X3

L1

X1

X3

H4

H1

X2

X4

H4

H2

H3

X2

X4

H1

H2

* SEE NOTE 4

L3A

L2A

460V

L1A

WARNING: DISCONNECT POWER TO DRYER

AT CUSTOMER SOURCE BEFORE SERVICING

SHOCK HAZARD: SOME CIRCUITS MAY BE

LIVE WHEN DRYER IS TURNED OFF

3

460V/3PH CONNECTION

NOTE: REPLACE THIS BOX WITH BOX

BELOW FOR 575V/3PH POWERED UNITS

L3

L2

L1

CR1

TS-3

12

WHT

PUMP (PM)

CONNECTIONS

GND

RED

WHT

GRN

5

4

TS-2

1234

YEL

RED

YEL

WHT

RED

6

DRYER ELECTRICAL COMPARTMENT FRONT PANEL

DRYER ELECTRICAL COMPONENTS

DRAIN/PUMP HOT

RED

COMPR HOT

COMPR

ALARM HOT

PUMP/DRAIN

DRAIN TIMER

WHT RED BLK BLK

24VAC

H

POWER

N

J1

SENSORS

J4

MICROPROCESSOR BOARD

YELLOW

ALARM

DRYER ELECTRICAL COMPARTMENT

SHIELDED PAIR

TEMPERATURE

TO EXCHANGER

THERMOWELL

PROBE

J5

240VAC

480VAC

200-240V/3PH/50-60HZ

2

380-480V/3PH/50-60 HZ

(TYPICAL)

HOLES IN

ELECTRICAL

COMPARTMENT

GROMMETED

BLK

1

GROUND

GRN

* SEE NOTE 3

BLK

FAN

BLK

SEE NOTE 2.

CUT OUT SW.

HIGH PRESS

HPCO

GRN

L1

BLK

COMPRESSOR

CONNECTIONS

3

(CM)

BLK

(C1)

L2 L3

CONTACTOR

RED

H2H1

200V

TRANSFORMER

GRN

RED

XFMR1

115V

GRN

LUG

GROUND

SIDE

THRU

480V

SIDE

H4

H3

BLK

RED

WHT

RED

FU2

FU1

BLK

PRIMARY

FUSES

XFMR SECONDARY

FUSE - FU3-250V

CUT OUT SW.

RED

LOW PRESS

LPCO

GRN

MAX LOAD 0.50 A

GRN

NL1

G

NOTES:

1. CUSTOMER POWER HOOK UP AT THE TERMINAL STRIP IN THE ELECTRICAL CONNECTION BOX IN THE

DRYER REAR ON L1, L2, L3 & GND.

2. HPCO INCLUDED WITH WATERCOOLED UNITS ONLY.

3. FAN MOTOR NOT INCLUDED ON WATERCOOLED UNITS.

4. FOR CONNECTION TO 575V/3PH SYSTEMS, SWAP BOXES ABOVE RIGHT TO INCLUDE 575V TO 460V

AUTOTRANSFORMER. NOTE: MAIN INCOMING POWER DISCONNECT AND FUSING WILL BE PROVIDED BY

CUSTOMER.

5. OUTLET NOT PROVIDED ON NEMA 4 OR WEATHERPROOF OPTIONS.

6. -------- DENOTES OPTIONAL EQUIPMENT.

550031

WIRING DIAGRAM

NVC200-400 AIR AND WATERCOOLED

208-575V/3PH/60HZ, 200-440V/3PH/50HZ

SEE NOTE 5

{

REMOTE ALARM CONTACT

TO REMOTE ALARM BY OTHERS (OPTIONAL)

5A/120VAC MAX

SWITCH

{

CUSTOMER SUPPLIED

REMOTE START/STOP

WHT

ELEC. PLUG

WHT

RED

WHT

7. ALTERNATE 30 POWER LEADS MAY BE BLACK, RED, WHITE.

WIRING DIAGRAM

NVC200-400 AIR AND WATERCOOLED

208-575V/3PH/60HZ, 200-440V/3PH/50HZ

17

Nirvana Cycling Refrigerated Dryer Models 200-400

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CONTROL PANEL

CONDENSATE DRAIN

STANDARD DRAIN OUTLET

LIFTING BASE WITH

FORK LIFT FEATURE

(REMOVABLE)

AIR OUTLET CONNECTION

1) 1 1/2" MPT FOR 200-250 SCFM MODELS

2) 2" FOR 300-400 SCFM MODELS

AIR INLET CONNECTION

1) 1 1/2" MPT FOR 200-250 SCFM MODELS

2) 2" FOR 300-400 SCFM MODELS

CUSTOMER ELECTRICAL

CONNECTIONS ACCESS

GLYCOL PUMP ACCESS

AMBIENT AIR FILTER LOCATION

(NOT SHOWN)

WATER COOLED INLET CONNECTION

1/2" FPT FOR 250-400 SCFM MODELS

3/8" FPT FOR 200 SCFM MODELS

WATER COOLED OUTLET CONNECTION

1/2" FPT FOR 250-400 SCFM MODELS

3/8" FPT FOR 200 SCFM MODELS

OUTFLOW VALVE

ADJUSTMENT

ACCESS

MICROPROCESSOR CONTROL

(SEE TECHNICAL MANUAL FOR

OPERATION DETAILS)

FRONT VIEWLEFT SIDE VIEW

TOP VIEW

RIGHT SIDE VIEW

25.00

30.38

23.38

2.50

57.75

55.25

REAR VIEW

32.56

550030

28.12

2.38

51.19

12.0 GENERAL ARRANGEMENT

GENERAL ARRANGEMENT

NVC200-400

AIR AND WATERCOOLED

Nirvana Cycling Refrigerated Dryer Models 200-400

http://air.irco.com

18

13.0 REPLACEMENT PARTS

Spare. Quantities under this heading reflect the number of each item which we recommend be kept on hand for maintenance or repair.

The appropriate quantity for your application will depend on how critical interruptions in service are to your operation.

Class Quantity Suggested for

1 Minimum Domestic service where interruptions in service are acceptable.

2 Average Domestic service where some interruptions in service are acceptable.

3 Maximum Export service or for domestic service where interruptions in service are unacceptable.

QTY/ SPARES

CCN DESCRIPTION UNIT 1 2 3

38052197 BOARD, CONTROL 1 1 1 1

38052718 CONTACTOR, COMPRESSOR 1 1 1 1

22719421 DRAIN, CONDENSATE 1

38448239 DRAIN, SERVICE UNIT 1

38052916 DRYER, REFRIGERANT FILTER 1

38052437 PANEL FILTER ELEMENT 1

38054268 FUSE, TRANSFORMER PRIMARY 2 2 2 4

38052361 FUSE, TRANSFORMER SECONDARY (EXCEPT NVC200) 1 1 1 2

38052676 OVERLAY, CONTROL BOARD 1

38052908 PROBE, EXCHANGER TEMPERATURE 1 1 1 1

38052171 SWITCH, LOW REFRIGERANT PRESSURE 1

38053252 TRANSFORMER, CONTROL - 0.15 KVA (EXCEPT NVC200) 1

38052148 VALVE, DRAIN 1

38052320 VALVE, GLYCOL PUMP ISOLATION 1

MISCELLANEOUS PARTS

PARTS FOR AIR COOLED DRYERS

FAN MOTORS

NVC NEMA 1 NEMA 4 NEMA 1 NEMA 4

MODEL CONDENSERS 230V 230V 460V 460V

200 38053104 38053229 3854789 38446498 38446498

300 38052700 38053229 3854789 38446498 38446498

400 38052700 38053229 3854789 38446498 38446498

PARTS FOR WATER COOLED DRYERS

NVC

MODEL CONDENSERS VALVES

200 38054581 38054623

300 38450029 38054631

400 38450029 38054631

COMPRESSORS

NVC

MODEL 230/1/60 230/3/60 230/3/50 380/3/50 460/3/60 575/3/60

200 38446746 38054649 38054672 38450003 38450003 38450003

300 - 38054656 38054680 38052288 38052270 38052270

400 - 38054664 38054698 38054706 38052288 38052288

19

Nirvana Cycling Refrigerated Dryer Models 200-400

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MAXIMUM ALLOWABLE WORKING PRESSURE: 230 psig

a

NOTICE

Specification information above accurate at time of publication. Refer to equipment serial label

for actual refrigerant charges and specifications for units.

14.0 ENGINEERING SPECIFICATIONS

AIR COOLED CONDENSERS

WEIGHT R-404A

MAX. FUSE

SIZE

MIN. CIRCUIT

AMPACITY

COMPRESSOR RATINGS FAN RATINGS

MODEL NO. VOLTS/PH/HZ LBS. KG. LB-OZ KG. HP RLA LRA QTY HP RLA LRA

NVC200 230/1/60 540 245 2-4 1.02 20 13.7 1 9.7 40 1 1/6 1 3

NVC200 460/3/60 540 245 2-4 1.02 6 3.9 1 2.4 13 1 1/6 0.5 1.2

NVC200 230/3/60 540 245 2-4 1.02 12 7.7 1 4.8 25 1 1/6 1 3

NVC200 575/3/60 540 245 2-4 1.02 5 3.0 1 2.4 13 1 1/6 0.5 1.2

NVC250 460/3/60 570 259 3-8 1.588 8 5.3 11/2 3.6 16 1 1/6 0.5 1.2

NVC250 230/3/60 570 259 3-8 1.588 15 9.6 11/2 6.4 38 1 1/6 1 3

NVC250 575/3/60 570 259 3-8 1.588 7 4.3 11/2 3.6 16 1 1/6 0.5 1.2

NVC300 460/3/60 630 286 4-0 1.814 10 6.2 2 4.3 16 1 1/6 0.5 1.2

NVC300 230/3/60 630 286 4-0 1.814 18 11.5 2 7.9 38 1 1/6 1 3

NVC300 575/3/60 630 286 4-0 1.814 8 4.9 2 4.3 16 1 1/6 0.5 1.2

NVC400 460/3/60 670 304 4-0 1.814 12 7.6 2 1/2 5.4 23 1 1/6 0.5 1.2

NVC400 230/3/60 670 304 4-0 1.814 25 15.9 2 1/2 11.4 57 1 1/6 1 3

NVC400 575/3/60 670 304 4-0 1.814 10 6.0 2 1/2 5.4 23 1 1/6 0.5 1.2

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