Bard W30H1, W18H1, W48H1, W36H1, W42H1, W60H1, W24H1 User Manual

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INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGE HEAT PUMPS

MODELS

W18H1

W24H1

W30H1

W36H1

W42H1

W48H1

W60H1

Bard Manufacturing Company, Inc.

Manual :

2100-511

 

Bryan, Ohio 43506

Supersedes:

NEW

 

 

Since 1914...Moving ahead just as planned.

File:

Volume III Tab 17

Date:

10-14-08

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

© Copyright 2008

 

 

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Contents

Getting Other Information and Publications

3

Wall Mount General Information

 

Wall Mount Model Nomenclature ............................

4

Shipping Damage ....................................................

4

General ................................................................

4

Duct Work ................................................................

5

Filters ................................................................

5

Fresh Air Intake .......................................................

5

Condensate Drain....................................................

5

Installation Instructions

 

Wall Mounting Information .......................................

6

Mounting the Unit ....................................................

6

Clearances Required ...............................................

6

Minimum Clearances ...............................................

6

Wiring – Main Power .............................................

14

Wiring – Low Voltage Wiring .................................

14

Figures

 

 

Figure 1

Fresh Air Damper Assembly ...................

5

Figure 2

Unit Dimensions ......................................

7

Figure 3A

Mounting Instructions ..............................

8

Figure 3B Mounting Instructions - W18, W24, W30, W36 ....

9

Figure 3C Mounting Instructions - W42, W48, W60 .....

10

Figure 4

Electric Heat Clearance .........................

11

Figure 5

Wall Mounting Instructions ....................

12

Figure 6

Wall Mounting Instructions ....................

12

Figure 7

Common Wall Mounting Installations....

13

Figure 8

Defrost Control Board ...........................

18

Figure 9

Fan Blade Setting .................................

21

Start Up

 

General ..............................................................

15

Topping Off System Charge...................................

15

Safety Practices.....................................................

15

Important Installer Note .........................................

16

Wall Mounted Air Conditioner ................................

16

Three Phase Scroll Compressor............................

16

Phase Monitor .......................................................

16

Condenser Fan Operation .....................................

16

Service Hints .........................................................

16

Sequence of Operation..........................................

17

Pressure Service Ports ..........................................

17

Defrost Cycle .........................................................

17

Troubleshooting

 

Solid State Heat Pump Control ..............................

19

Checking Temperature Sensor ..............................

20

Fan Blade Setting Dimensions ..............................

21

Removal of Fan Shroud .........................................

21

Refrigerant Charge ................................................

21

Tables

 

 

 

Table

1

Troubleshooting ....................................

19

Table

2

Fan Blade Dimension............................

21

Table

3

Refrigerant Charge ...............................

21

Table

4A

Cooling Pressure ..................................

22

Table

4B

Heating Pressure ..................................

22

Table

5

Electrical Specifications W**H ..............

23

Table

6

Recommended Airflow ..........................

24

Table

7

Indoor Blower Performance ..................

24

Tables 8

Maximum ESP Electric Heat Only........

25

Table

9

Electric Heat .........................................

25

Table

10

Optional Accessories ...........................

26

Table

11

Vent & Control Options .........................

27

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GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.

National Electrical Code ......................

ANSI/NFPA 70

Standard for the Installation ..............

ANSI/NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air ......................

ANSI/NFPA 90B

Heating and Air Conditioning Systems

Load Calculation for ............................

ACCA Manual J

Residential Winter and Summer Air Conditioning

Duct Design for Residential ..............

ACCA Manual D

Winter and Summer Air Conditioning and Equipment

Selection

FOR MORE INFORMATION, CONTACT THESE PUBLISHERS:

ACCA

Air Conditioning Contractors of America

 

1712 New Hampshire Ave. N.W.

 

Washington, DC 20009

 

Telephone: (202) 483-9370

 

Fax: (202) 234-4721

ANSI

American National Standards Institute

 

11 West Street, 13th Floor

 

New York, NY 10036

 

Telephone: (212) 642-4900

 

Fax: (212) 302-1286

ASHRAE

American Society of Heating, Refrigeration

 

and Air Conditioning Engineers, Inc.

 

1791 Tullie Circle, N.E.

 

Atlanta, GA 30329-2305

 

Telephone: (404) 636-8400

 

Fax: (404) 321-5478

NFPA

National Fire Protection Association

 

Batterymarch Park

 

P.O. Box 9101

 

Quincy, MA 02269-9901

 

Telephone: (800) 344-3555

 

Fax: (617) 984-7057

Manufactured under the following

U.S. Patent numbers:

5,485,878; 5,301,777; 5,002,116; 4,924,934;

4,875,520; 4,825,936

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WALL MOUNT GENERAL INFORMATION

HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

W 42 H 1 A 10

MODEL NUMBER

 

CAPACITY

 

18

- 1½ Ton

 

24

- 2 Ton

 

30

- 2½ Ton

 

36

- 3 Ton

 

42

- 3½ Ton

 

48

- 4 Ton

 

60

- 5 Ton

H - HeatPump

 

 

REVISIONS

KW

VOLTS & PHASE

A - 230/208/60/1

B - 230/208/60/3

C - 460/60/3

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard)

B - Blank-offPlate

M - Motorized Fresh Air Damper

V - Commercial Ventilator - Motorized with Exhaust

E - Economizer (Internal) - Fully Modulating with Exhaust

R- Energy Recovery Ventilator - Motorized with Exhaust (See Spec. Sheet S3398)

X

X

X

X

X

A

 

 

 

 

 

 

CONTROLMODULES

 

 

 

 

 

 

(See Spec. Sheet S3397)

 

 

 

 

COIL OPTIONS

 

COLOR OPTIONS

X - Standard

 

X -

Beige(Standard)

1

- PhenolicCoatedEvaporator

 

1

-

White

2

- PhenolicCoatedCondenser

 

2

-

Mesa Tan

3

- PhenolicCoatedEvaporator

 

4

-

Buckeye Gray

 

 

andCondenser

 

5

-

DesertBrown

 

 

 

 

8

- Dark Bronze

OUTLET OPTIONS

 

 

 

 

X - Front (Standard)

 

 

 

 

T - Top Outlet (W30H, W36H Only)

FILTER OPTIONS

X - One Inch Throwaway (Standard)

W - One Inch Washable

P - Two Inch Pleated

NOTE: Vent options X, B and M are without exhaust capability. May require separate field supplied barometric relief in building.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

GENERAL

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

The refrigerant system is completely assembled and charged. All internal wiring is complete.

The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly “Starting Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 3 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss/gain calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

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DUCT WORK

All duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage.

Refer to Maximum ESP of operation Electric Heat Tables 8.

Design the duct work according to methods given by the Air Conditioning Contractors of America (ACCA). When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

Models W18 & W24 are approved for zero inch clearance to the supply duct. For model series W30, W36, W42, W48 and W60 a 1/4 inch clearance to combustible material for the first three feet of duct attached to the outlet air frame is required. See Wall Mounting Instructions and Figures 3 and 4 for further details.

Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity.

Some installations may not require any return air duct. A metallic return air grille is required with installations not requiring a return air duct. The spacing between louvers on the grille shall not be larger than 5/8 inch.

Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, filters must be of sufficient size to allow a maximum velocity of 400 fpm.

FILTERS

A 1-inch throwaway filter is standard with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the filter access panel. A 1-inch washable filter and 2- inch pleated filter are also available as optional accessories. The internal filter brackets are adjustable to accommodate the 2-inch filter by bending two (2) tabs down on each side of the filter support bracket.

FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in the service door.

If the unit is equipped with a fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, the maximum and minimum blade position stops must be installed. See Figure 1.

All capacity, efficiency and cost of operation information is based upon the fresh air blank-off plate in place and is recommended for maximum energy efficiency.

The blank-off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.

NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.

FIGURE 1

FRESH AIR DAMPER

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INSTALLATION INSTRUCTIONS

WALL MOUNTING INFORMATION

1.Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3.

2.On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration.

3.Concrete block walls must be thoroughly inspected to insure that they are capable of carrying the weight of the installed unit.

MOUNTING THE UNIT

1.These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides. A bottom mounting bracket, attached to skid for shipping, is provided for ease of installation, but is not required.

2.The unit itself is suitable for 0 inch clearance, but the supply air duct flange and the first 3 feet of supply air duct require a minimum of 1/4 inch clearance to combustible material for model series W30, W36, W42, W48 and W60. However, it is generally recommended that a 1-inch clearance is used for ease of installation and maintaining the required clearance to combustible material. See Figure 3 for details on opening sizes.

3.Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 3.

4.Mount bottom mounting bracket.

5.Hook top rain flashing, attached to front - right of supply flange for shipping, under back bend of top.

WARNING

Failure to provide the 1/4 inch clearance between the supply duct and a combustible surface for the first 3 feet of duct can result in fire causing damage, injury or death.

6.Position unit in opening and secure with 5/16 lag bolts; use 7/8 inch diameter flat washers on the lag bolts.

7.Secure rain flashing to wall and caulk across entire length of top. See Figure 3.

8.For additional mounting rigidity, the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself (depending upon wall construction). Be sure to observe required clearance if combustible wall.

9.On side-by-side installations, maintain a minimum of 20 inches clearance on right side to allow access to control panel and heat strips, and to allow proper airflow to the outdoor coil. Additional clearance may be required to meet local or national codes.

Clearances Required for Service Access and Adequate Condenser Airflow

MODELS

LEFT SIDE

RIGHT SIDE

W18H, W24H, W30H, W36H

15"

20"

W42H, W48H, W60H

20"

20"

Minimum Clearances Required to Combustible Materials

MODELS

SUPPLY AIR DUCT

CABINET

FIRST THREE FEET

W18H

/ W24H

0"

0"

W30H

/ W36H

1/4"

0"

W42H

/ W48H / W60H

1/4"

0"

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FIGURE 2

Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)

MODEL

WIDTH

DEPTH

HEIGHT

SUPPLY

RETURN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(W)

(D)

(H)

A

B

C

B

E

F

G

I

J

K

L

M

N

O

P

Q

R

S

T

 

W18H1

33.300

17.125

70.563

7.88

19.88

11.88

19.88

35.00

18.50

25.75

20.56

26.75

28.06

29.25

27.00

2.63

34.13

22.06

10.55

5.00

12.00

5.00

W24H1

W30H1

38.200

17.125

70.563

7.88

27.88

13.88

27.88

40.00

18.50

25.75

17.93

26.75

28.75

29.25

27.00

2.63

39.13

22.75

9.14

5.00

12.00

5.00

W36H1

W42H1

42.075

22.432

84.875

9.88

29.88

15.88

29.88

43.88

19.10

31.66

30.00

32.68

26.94

34.69

32.43

3.37

43.00

23.88

10.00

1.44

16.00

1.88

W48H1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W60H1

42.075

22.432

94.875

9.88

29.88

15.88

29.88

43.88

19.10

41.66

30.00

42.68

26.94

44.69

42.43

3.37

43.00

33.88

10.00

1.44

16.00

1.88

All dimensions are in inches. Dimensional drawings are not to scale.

W**H

RIGHT

UNIT

FRONT VIEW

SIDE VIEW

BACK VIEW

*Optional top outlet (factory installed only) for W30H and W36H models only.

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FIGURE 3A W18H1, W24H1 MOUNTINGINSTRUCTIONS

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FIGURE 3B

W30H1, W36H1 MOUNTINGINSTRUCTIONS

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FIGURE 3C

W42H1, W48H1, W60H1 MOUNTINGINSTRUCTIONS

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FIGURE 4

ELECTRIC HEAT CLEARANCE

W30H1, W36H1, W42H1, W48H1, W60H1

SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR

WALL MOUNTED UNIT SHOWING 1/4 INCH

CLEARANCE TO COMBUSTIBLE SURFACES.

WARNING

A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting.

It is important to insure that the 1/4 inch minimum spacing is maintained at all points.

Failure to do this could result in overheating the combustible material and may result in a fire causing damage, injury or death.

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FIGURE 5

WALL MOUNTING INSTRUCTIONS

SEE FIGURE 3 – MOUNTING INSTRUCTIONS

FIGURE 6

WALL MOUNTING INSTRUCTIONS

SEE UNIT DIMENSIONS, FIGURE 2,

FOR ACTUAL DIMENSIONS

IF REQUIRED

IF REQUIRED

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FIGURE 7

COMMON WALL MOUNTING INSTALLATIONS

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WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.

The electrical data lists fuse and wire sizes (75° C copper) for all models including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.

The unit rating plate lists a “Maximum Time Delay Relay Fuse” or “HACR” type circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.

The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect. To convert for the locking capability, bend the tab located in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. When shut, a padlock may be placed through the hole in the tab preventing entry.

See “Start Up” section for important information on three phase scroll compressor start ups.

See Table 5 for Electrical Specifications.

WIRING – LOW VOLTAGE WIRING

230/208V, 1 phase and 3 phase equipment dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are:

TAP

RANGE

240

253 – 216

208

220 – 187

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

For wiring size and connections, refer to Wiring Manual 2100-507.

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START UP

THESE UNITS REQUIRE R-410A REFRIGERANT AND POLYOL ESTER OIL.

GENERAL:

1.Use separate service equipment to avoid cross contamination of oil and refrigerants.

2.Use recovery equipment rated for R-410A refrigerant.

3.Use manifold gauges rated for R-410A (800 psi/250 psi low).

4.R-410A is a binary blend of HFC-32 and HFC-125.

5.R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6.R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.

7.R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8.R-410A compressors use Polyol Ester oil.

9.Polyol Ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10.A liquid line dryer must be used - even a deep vacuum will not separate moisture from the oil.

11.Limit atmospheric exposure to 15 minutes.

12.If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above), and charging to the nameplate charge. If done correctly, topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the charging charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

WARNING

Failure to conform to these practices could lead to damage, injury or death.

SAFETY PRACTICES:

1.Never mix R-410A with other refrigerants.

2.Use gloves and safety glasses, Polyol Ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3.Never use air and R-410A to leak check; the mixture may become flammable.

4.Do not inhale R-410A – the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5.Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6.Use only cylinders rated DOT4BA/4BW 400.

7.Never fill cylinders over 80% of total capacity.

8.Store cylinders in a cool area, out of direct sunlight.

9.Never heat cylinders above 125°F.

10.Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

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START UP (Continued)

IMPORTANT INSTALLER NOTE

For improved start up performance wash the indoor coil with a dish washing detergent.

HIGH & LOW PRESSURE SWITCH

All W**H wall mounted air conditioner series models are supplied with a remote reset for the high and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again.

THREE PHASE SCROLL COMPRESSOR START UP INFORMATION

Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as substantially reduced current draw compared to tabulated values.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time, there will be no negative impact on the durability of the compressor. However, reverse operation for over one hour may have a negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverse rotation for several minutes, the compressor’s internal protector will trip.

All three phase ZP compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction.

The direction of rotation of the compressor may be changed by reversing any two line connections to the unit.

PHASE MONITOR

All units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal.

The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor and phases are correct the green LED will light.

If phases are reversed, the red fault LED will be lit and compressor operation is inhibited.

If a fault condition occurs, reverse two of the supply leads to the unit. Do not reverse any of the unit factory wires as damage may occur.

CONDENSER FAN OPERATION

Applies to W42, W48 and W60 models only. The condenser fan motor on 230/208 volt, one and three phase, 60 HZ units is a two-speed motor that comes factory wired on high speed for peak performance. If ambient conditions permit, it can be reconnected to low speed (red wire) for lower sound level. See wiring diagram.

50 HZ models must have fan wired on low speed. These models are factory wired on low speed.

SERVICE HINTS

1.Caution owner/operator to maintain clean air filters at all times. Also, not to needlessly close off supply and return air registers. This reduces airflow through the system, which shortens equipment service life as well as increasing operating costs.

2.Check all power fuses or circuit breakers to be sure they are the correct rating.

3.Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential.

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SEQUENCE OF OPERATION

COOLING – Circuit R-Y makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation.

HEATING A 24V solenoid coil on reversing valve controls heating cycle operation. Two thermostat options, one allowing “Auto” changeover from cycle to cycle and the other constantly energizing solenoid coil during heating season, and thus eliminating pressure equalization noise except during defrost, are to be used. On “Auto” option a circuit is completed from R-W1 and R-Y on each heating “on” cycle, energizing reversing valve solenoid and pulling in compressor contactor starting compressor and outdoor motor. R-G also make starting indoor blower motor. Heat pump heating cycle now in operation. The second option has no “Auto” changeover position, but instead energizes the reversing valve solenoid constantly whenever the system switch on subbase is placed in “Heat” position, the “B” terminal being constantly energized from R. A Thermostat demand for heat completes R-Y circuit, pulling in compressor contactor starting compressor and outdoor motor. R-G also make starting indoor blower motor.

PRESSURE SERVICE PORTS

High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure tables can be found later in the manual covering all models. It is imperative to match the correct pressure table to the unit by model number. See Tables 4A & 4B.

DEFROST CYCLE

The defrost cycle is controlled by temperature and time on the solid state heat pump control. See Figure 8.

When the outdoor temperature is in the lower 40°F temperature range or colder, the outdoor coil temperature is 32°F or below. This coil temperature is sensed by the coil temperature sensor mounted near the bottom of the outdoor coil. Once coil temperature reaches 30°F or below, the coil temperature sensor sends a signal to the control logic of the heat pump control and the defrost timer will start.

After 60 minutes at 30°F or below, the heat pump control will place the system in the defrost mode.

During the defrost mode, the refrigerant cycle switches back to the cooling cycle, the outdoor motor stops, electric heaters are energized, and hot gas passing through the outdoor coil melts any accumulated frost. When the temperature rises to approximately 57°F, the coil temperature sensor will send a signal to the heat pump control which will return the system to heating operations automatically.

If some abnormal or temporary condition such as a high wind causes the heat pump to have a prolonged defrost cycle, the heat pump control will restore the system to heating operation automatically after 10 minutes.

The heat pump defrost control board has an option of 30, 60 or 90-minute setting. All models are shipped from the factory on the 60-minute pin. If special circumstances require a change to another time, remove the wire from the 60-minute terminal and reconnect to the desired terminal. The manufacturer’s recommendation is for 60-minute defrost cycles. Refer to Figure 8.

There is a cycle speed up jumper on the control. This can be used to reduce the time between defrost cycle operation without waiting for time to elapse.

Use a small screwdriver or other metallic object, or another ¼ inch QC, to short between the SPEEDUP terminals to accelerate the HPC timer and initiate defrost.

Be careful not to touch any other terminals with the instrument used to short the SPEEDUP terminals. It may take up to 10 seconds with the SPEEDUP terminals shorted for the speedup to be completed and the defrost cycle to start.

As soon as the defrost cycle kicks in remove the shorting instrument from the SPEEDUP terminals.

Otherwise the timing will remain accelerated and run through the 1-minute minimum defrost length sequence in a matter of seconds and will automatically terminate the defrost sequence.

There is an initiate defrost jumper (sen jump) on the control that can be used at any outdoor ambient during the heating cycle to simulate a 0° coil temperature.

This can be used to check defrost operation of the unit without waiting for the outdoor ambient to fall into the defrost region.

By placing a jumper across the SEN JMP terminals (a ¼ inch QC terminal works best) the defrost sensor mounted on the outdoor coil is shunted out and will activate the timing circuit. This permits the defrost cycle to be checked out in warmer weather conditions without the outdoor temperature having to fall into the defrost region.

In order to terminate the defrost test the SEN JMP jumper must be removed. If left in place too long, the compressor could stop due to the high pressure control opening because of high pressure condition created by operating in the cooling mode with outdoor fan off. Pressure will rise fairly fast as there is likely no actual frost on the outdoor coil in this artificial test condition.

There is also a 5-minute compressor time delay function built into the HPC. This is to protect the compressor from short cycling conditions. In some instances, it is helpful to the service technician to override or speed up this timing period, and shorting out the SPEEDUP terminals for a few seconds can do this.

Manual

2100-511

Page

17 of 27

FIGURE 8

DEFROST CONTROL BOARD

Manual

2100-511

Page

18 of 27

TROUBLESHOOTING

SOLID STATE HEAT PUMP CONTROL

TROUBLESHOOTINGPROCEDURE

1.NOTE: A thorough understanding of the defrost cycle sequence is essential. Review that section earlier in this manual prior to troubleshooting the control. Turn on AC power supply to unit.

2.Turn thermostat blower switch to “fan on” – the indoor blower should start. (If it doesn’t, troubleshoot indoor unit and correct problem.)

3.Turn thermostat blower to “auto” position. Indoor blower should stop. NOTE: Many models have a 1-minute blower time delay on “off” command; wait for this to time-out.

4.Set system switch to “heat” or “cool”. Adjust thermostat to call for heat or cool. The indoor blower, compressor and outdoor fan should start.

NOTE: If there was no power to 24 volt transformer, the compressor and outdoor fan motor will not start for 5 minutes. This is because of the compressor short cycle protection.

 

 

TABLE 1

 

 

TROUBLESHOOTING

 

 

 

Symptom

Possible Causes

What & How to Check / Repair

 

 

 

Compressor will

Check for 24V from R to C

If 24V is not present at R, check wiring from board to transformer and check transformer input

not start (heating

on the heat pump control

and output voltage. If transformer has no 24V output, determine cause and replace

or cooling)

 

transformer.

 

 

 

 

Check for 24V from Y to C

If 24V is not present, check thermostat and thermostat wiring, outdoor thermostat (if equipped)

 

on low voltage terminal strip

phase monitor (if equipped, used on some 3-phase models). If 24V is present continue to

 

 

next step.

 

 

 

 

Check for 24V from C to

If 24V is present, check and/or replace compressor contactor. If 24V is not present, jump the

 

CC on heat pump control

speed up terminal for 10 seconds. If compressor does not start check for 24V from C to L1

 

 

on the heat pump control.

 

 

 

 

Compressor lock out

If 24V is not present at L1 of the heat pump control, check the high pressure switch and low

 

 

pressure bypass relay (if equipped) and all associated wiring and terminals. The safety circuit

 

 

is a closed circuit. If the high pressure switch or low pressure bypass relay are open, the

 

 

control will lock out the compressor. Replace defective component. Cycle power off and on to

 

 

reset lock out. Jump speed up terminals for 10 seconds to override 5-minute time delay.

 

 

 

 

Defective heat pump control

If 24V is present from C to Y, and C to L1 on the heat pump control, the time delay has been

 

 

overridden or expired and no 24V is present at CC, replace the heat pump control.

 

 

 

Fan outdoor motor

Heat pump control defective

Check across fan relay on heat pump control. (Com-NC)

does not run

 

Replace heat pump control.

(cooling or heating

 

 

Motor defective

Check for open or shorted motor winding. Replace motor.

except during

 

 

Motor capacitor defective

Check capacitor rating. Check for open or shorted capacitor. Replace capacitor.

defrost)

 

 

 

Reversing valve

Heat pump control defective

Check for 24V between RV-C and B-C.

does not energize

 

1. Check control circuit wiring.

(heating only)

 

2. Replace heat pump control

 

 

 

 

Reversing valve solenoid

Check for open or shorted coil.

 

coil defective

Replace solenoid coil.

 

 

 

Unit will not go

Temperature sensor or heat

Disconnect temperature sensor from board and jumper across "SPEEDUP" terminals and "SEN

into defrost

pump control defective

JMP" terminals. This should cause the unit to go through a defrost cycle within one minute.

(heating only)

 

1. If unit goes through defrost cycle, replace temperature sensor.

 

 

2. If unit does not go through defrost cycle, replace heat pump control.

 

 

 

Unit will not come

Temperature sensor or heat

Jumper across "SPEEDUP" terminal.

out of defrost

pump control defective.

This should cause the unit to come out of defrost within one minute.

(heating only)

 

1. If unit comes out of defrost cycle, replace temperature sensor.

 

 

2. If unit does not come out of defrost cycle, replace heat pump control.

 

 

 

Manual

2100-511

Page

19 of 27

CHECKING TEMPERATURE SENSOR OUTSIDE UNIT CIRCUIT

1.Disconnect temperature sensor from board and from outdoor coil.

2.Use an ohmmeter and measure the resistance of the sensor. Also use ohmmeter to check for short or open.

3.Check resistance reading to chart of resistance. Use sensor ambient temperature. (Tolerance of part is

± 10%.)

4.If sensor resistance reads very low, then sensor is shorted and will not allow proper operation of the heat pump control.

5.If sensor is out of tolerance, shorted, open or reads very low ohms then it should be replaced.

TEMPERATURE F VS. RESISTANCE R OF TEMPERATURE SENSOR

F

R

F

R

F

R

F

R

 

 

 

 

 

 

 

 

-25.0

196871

13.0

56985

53.0

19374

89.0

7507

-24.0

190099

14.0

55284

52.0

18867

90.0

7334

-23.0

183585

15.0

53640

53.0

18375

91.0

7165

-22.0

177318

16.0

52051

54.0

17989

92.0

7000

-21.0

171289

17.0

50514

55.0

17434

93.0

6840

-20.0

165487

18.0

49028

56.0

16984

94.0

6683

-19.0

159904

19.0

47590

57.0

16547

95.0

6531

-18.0

154529

20.0

46200

58.0

16122

96.0

6383

-17.0

149355

21.0

44855

59.0

15710

97.0

6239

-16.0

144374

22.0

43554

60.0

15310

98.0

6098

-15.0

139576

23.0

42295

61.0

14921

99.0

5961

-14.0

134956

24.0

41077

62.0

14544

100.0

5827

-13.0

130506

25.0

39898

63.0

14177

101.0

5697

-12.0

126219

26.0

38757

64.0

13820

102.0

5570

-11.0

122089

27.0

37652

65.0

13474

103.0

5446

-10.0

118108

28.0

36583

66.0

13137

104.0

5326

-9.0

114272

29.0

35548

67.0

12810

105.0

5208

-8.0

110575

30.0

34545

68.0

12492

106.0

5094

-7.0

107010

31.0

33574

69.0

12183

107.0

4982

-6.0

103574

32.0

32634

70.0

11883

108.0

4873

-5.0

100260

33.0

31723

71.0

11591

109.0

4767

-4.0

97064

34.0

30840

72.0

11307

110.0

4663

-3.0

93981

35.0

29986

73.0

11031

111.0

4562

-2.0

91008

36.0

29157

74.0

10762

112.0

4464

-1.0

88139

37.0

28355

75.0

10501

113.0

4367

0.0

85371

38.0

27577

76.0

10247

114.0

4274

1.0

82699

39.0

26823

77.0

10000

115.0

4182

2.0

80121

40.0

26092

78.0

9760

116.0

4093

3.0

77632

41.0

25383

79.0

9526

117.0

4006

4.0

75230

42.0

24696

80.0

9299

118.0

3921

5.0

72910

43.0

24030

81.0

9077

119.0

3838

6.0

70670

44.0

23384

82.0

8862

120.0

3757

7.0

68507

45.0

22758

83.0

8653

121.0

3678

8.0

66418

46.0

22150

84.0

8449

122.0

3601

9.0

64399

47.0

21561

85.0

8250

123.0

3526

10.0

62449

48.0

20989

86.0

8057

124.0

3452

11.0

60565

49.0

20435

87.0

7869

 

 

12.0

58745

50.0

19896

88.0

7686

 

 

 

 

 

 

 

 

 

 

Manual

2100-511

Page

20 of 27

TROUBLESHOOTING

FAN BLADE SETTING DIMENSIONS

Shown in Figure 9 is the correct fan blade setting for proper air delivery across the outdoor coil. Refer to Table 2 for unit specific dimension.

Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly.

FIGURE 9

FAN BLADE SETTING

TABLE 2

MIS-1724

 

FAN BLADE DIMENSION

 

 

 

 

Model

Dimension

 

A

 

 

 

 

 

 

W18H1

1.00"

 

W24H1

 

 

 

 

 

 

W30H1

1.25"

 

W36H1

 

 

 

 

 

 

W42H1

 

 

W48H1

1.75"

 

W60H1

 

 

 

 

 

REMOVAL OF FAN SHROUD

1.Disconnect all power to the unit.

2.Remove the screws holding both grilles, one on each side of unit, and remove grilles.

3.Remove screws holding fan shroud to condenser and bottom. Nine (9) screws.

4.Unwire condenser fan motor.

5.Slide complete motor, fan blade, and shroud assembly out the left side of the unit.

6.Service motor/fan as needed.

7.Reverse steps to reinstall.

REFRIGERANT CHARGE

The correct system R-410A charge is shown on the unit rating plate. Optimum unit performance will occur with a refrigerant charge resulting in a suction line temperature (6" from compressor) as shown in Table 3. If charge quantity is in doubt, reclaim unit and recharge to factory nameplate quantity.

TABLE 3

REFRIGERANTCHARGE

 

Rated

95°F OD

82°F OD

Model

Airflow

Temperature

Temperature

 

 

 

 

W18H1

600

57 - 61

62 - 66

 

 

 

 

W24H1

800

58 - 62

58 - 63

 

 

 

 

W30H1

1000

58 - 62

62 - 66

 

 

 

 

W36H1

1100

58 - 62

57 - 61

 

 

 

 

W42H1

1400

61 - 65

65 - 69

 

 

 

 

W48H1

1550

60 - 64

63 - 67

 

 

 

 

W60H1

1650

60 - 64

65 - 69

 

 

 

 

The suction line temperatures in Table 3 above are based upon 80°F dry bulb / 67°F wet bulb (50% R.H.) temperature and rated airflow across the evaporator during cooling cycle.

Manual

2100-511

Page

21 of 27

TABLE 4A

COOLING PRESSURE TABLE

Air Temperature Entering Outdoor Coil °F

 

Return Air

 

 

 

 

 

 

 

 

 

 

 

Model

Temperature

Pressure

75

80

85

90

95

100

105

110

115

120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

132

134

137

138

140

142

144

146

148

150

 

62 deg. WB

High Side

292

311

332

353

376

400

424

450

477

505

 

 

 

 

 

 

 

 

 

 

 

 

 

W18H1

80 deg. DB

Low Side

141

143

146

148

150

152

154

156

158

160

67 deg. WB

High Side

299

319

340

362

386

410

435

462

489

518

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

146

148

151

153

155

157

159

161

164

166

 

72 deg. WB

High Side

309

330

352

375

400

424

450

478

506

536

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

124

126

128

131

133

135

137

138

140

142

 

62 deg. WB

High Side

329

351

373

398

423

449

475

503

531

561

 

 

 

 

 

 

 

 

 

 

 

 

 

W24H1

80 deg. DB

Low Side

133

135

137

140

142

144

146

148

150

152

67 deg. WB

High Side

337

360

383

408

434

460

487

516

545

575

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

138

140

142

145

147

149

151

153

155

157

 

72 deg. WB

High Side

349

373

396

422

449

476

504

534

564

595

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

125

128

131

133

136

137

139

141

143

145

 

62 deg. WB

High Side

326

350

373

398

423

448

472

496

522

547

 

 

 

 

 

 

 

 

 

 

 

 

 

W30H1

80 deg. DB

Low Side

134

137

140

142

145

147

149

151

153

155

67 deg. WB

High Side

334

359

383

408

434

459

484

509

535

561

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

139

142

145

147

150

152

154

156

158

160

 

72 deg. WB

High Side

346

372

396

422

449

475

501

527

554

581

 

75 deg. DB

Low Side

122

124

126

128

130

132

135

137

138

141

 

62 deg. WB

High Side

329

351

375

399

424

449

476

503

530

559

 

 

 

 

 

 

 

 

 

 

 

 

 

W36H1

80 deg. DB

Low Side

131

133

135

137

139

141

144

146

148

151

67 deg. WB

High Side

337

360

385

409

435

461

488

516

544

573

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

136

138

140

142

144

146

149

151

153

156

 

72 deg. WB

High Side

349

373

398

423

450

477

505

534

563

593

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

127

130

132

134

135

136

137

137

137

136

 

62 deg. WB

High Side

354

372

392

413

437

461

488

516

546

578

 

 

 

 

 

 

 

 

 

 

 

 

 

W42H1

80 deg. DB

Low Side

136

139

141

143

144

145

146

146

146

145

67 deg. WB

High Side

363

382

402

424

448

473

500

529

560

593

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

141

144

146

148

149

150

151

151

151

150

 

72 deg. WB

High Side

376

395

416

439

464

490

518

548

580

614

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

129

132

134

136

137

139

141

143

145

146

 

62 deg. WB

High Side

352

374

398

422

449

476

505

535

566

600

 

 

 

 

 

 

 

 

 

 

 

 

 

W48H1

80 deg. DB

Low Side

138

141

143

145

147

149

151

153

155

156

67 deg. WB

High Side

361

384

408

433

460

488

518

549

581

615

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

143

146

148

150

152

154

156

158

160

161

 

72 deg. WB

High Side

374

397

422

448

476

505

536

568

601

637

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75 deg. DB

Low Side

126

128

131

133

135

137

139

141

143

145

 

62 deg. WB

High Side

332

352

373

397

421

448

476

505

536

568

 

 

 

 

 

 

 

 

 

 

 

 

 

W60H1

80 deg. DB

Low Side

135

137

140

142

144

147

149

151

153

155

67 deg. WB

High Side

341

361

383

407

432

459

488

518

550

583

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85 deg. DB

Low Side

140

142

145

147

149

152

154

156

158

160

 

72 deg. WB

High Side

353

374

396

421

447

475

505

536

569

603

 

 

 

 

 

 

 

 

 

 

 

 

 

Low side pressure ± 4 PSIG

High side pressure ± 10 PSIG

Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate charge weight.

NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See “Condenser Fan Operation”.

TABLE 4B

HEATING PRESSURES – (ALL TEMPERATURES °F)

 

 

Return Air

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

Temperature

Pressure

0

5

10

15

20

25

30

35

40

45

50

55

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W18H

70 deg.

Low Side

48

52

56

61

66

72

79

87

95

104

114

124

135

 

 

High Side

290

285

282

282

285

290

297

307

319

334

352

372

394

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W24H

70 deg.

Low Side

57

55

55

57

59

64

70

77

86

96

108

121

135

 

 

High Side

292

296

301

307

314

323

332

342

354

367

380

395

411

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W30H

70 deg.

Low Side

53

53

55

58

61

66

72

80

88

97

108

119

132

 

 

High Side

254

266

278

290

301

312

322

332

342

351

360

369

377

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W36H

70 deg.

Low Side

47

49

51

55

59

64

70

77

85

93

103

113

124

 

 

High Side

281

282

283

287

292

300

308

319

331

345

361

379

398

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W42H

70 deg.

Low Side

50

50

52

54

58

62

68

75

84

93

104

115

128

 

 

High Side

299

300

303

308

314

322

331

342

355

370

386

404

423

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W48H

70 deg.

Low Side

42

45

49

54

59

64

70

77

84

92

100

109

118

 

 

High Side

268

270

274

278

284

291

298

307

317

327

339

352

366

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W60H

70 deg.

Low Side

39

43

47

52

58

63

70

76

84

92

100

109

118

 

 

High Side

294

296

300

305

311

319

328

338

349

362

376

391

408

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-511

Page

22 of 27

TABLE 5

Electrical Specifications — W**H Series

 

 

 

 

Single Circuit

 

 

 

 

Dual Circuit

 

 

 

 

Rated

No. Field

4 Minimum

1 Maximum

2 Field

 

4 Minimum

1 Maximum

2 Field

2 Ground

 

2 Ground

Circuit

External Fuse

Power

Model

Volts

Power

Circuit

External Fuse

Power

Wire Size

Wire

Ampacity

or Ckt. Breaker

Wire Size

 

and Phase

Circuits

Ampacity

or Ckt. Brkr.

Wire Size

 

Ckt. A

Ckt. B

Ckt. A

Ckt. B

Ckt. A

Ckt. B

Ckt. A

Ckt. B

 

 

 

 

 

 

 

W18H1A00, A0Z

 

1

16

20

12

12

 

 

 

 

 

 

 

 

A04

230/208-1

1

37

40

8

10

 

 

 

 

 

 

 

 

3 A08

 

1

58

60

6

10

 

 

 

 

 

 

 

 

W24H1A00, A0Z

 

1

24

25

10

10

 

 

 

 

 

 

 

 

A04

230/208-1

1

44

50

8

10

 

 

 

 

 

 

 

 

3 A08

 

1

65

70

6

8

44

21

45

25

8

10

10

10

W24H1B00, B0Z

230/208-3

1

17

20

12

12

 

 

 

 

 

 

 

 

B06

1

35

40

8

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W24H1C00, C0Z

460-3

1

11

15

14

14

 

 

 

 

 

 

 

 

C06

1

21

25

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W30H1A00, A0Z*

 

1

24

35

8

10

 

 

 

 

 

 

 

 

A05*

230/208-1

1

50

50

8

10

 

 

 

 

 

 

 

 

3 A10*

 

1 or 2

76

80

4

8

50

26

50

30

8

10

10

10

W30H1B00, B0Z*

 

1

18

25

10

10

 

 

 

 

 

 

 

 

B06

230/208-3

1

36

40

8

10

 

 

 

 

 

 

 

 

3 B09*

 

1

45

45

8

10

 

 

 

 

 

 

 

 

W30H1C00, C0Z*

 

1

11

15

14

14

 

 

 

 

 

 

 

 

C06

460-3

1

20

20

12

12

 

 

 

 

 

 

 

 

3 C09*

1

25

25

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C15

 

1

26

30

10

10

 

 

 

 

 

 

 

 

W36H1A00, A0Z*

 

1

29

40

8

10

 

 

 

 

 

 

 

 

A05

230/208-1

1

55

60

6

10

 

 

 

 

 

 

 

 

3 A10*

1 or 2

81

90

4

8

55

26

60

30

6

10

10

10

 

5 A15

 

1 or 2

84

90

4

8

55

52

60

60

6

6

10

10

W36H1B00, B0Z*

 

1

23

30

10

10

 

 

 

 

 

 

 

 

B06

230/208-3

1

41

45

8

10

 

 

 

 

 

 

 

 

3 B09*

1

50

50

8

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 B15

 

1

51

60

8

10

 

 

 

 

 

 

 

 

W36H1C00, C0Z*

 

1

12

15

14

14

 

 

 

 

 

 

 

 

C06

460-3

1

21

25

10

10

 

 

 

 

 

 

 

 

3 C09*

1

25

25

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C15

 

1

26

30

10

10

 

 

 

 

 

 

 

 

W42H1A00, A0Z

 

1

36

50

8

10

 

 

 

 

 

 

 

 

A05

230/208-1

1

62

70

6

8

36

26

50

30

8

10

10

10

3 A10

1 or 2

88

90

3

8

36

52

50

60

8

6

10

10

 

5 A15

 

1 or 2

88

90

3

8

36

52

50

60

8

6

10

10

W42H1B00, B0Z

 

1

26

35

8

10

 

 

 

 

 

 

 

 

B06

230/208-3

1

44

50

8

10

 

 

 

 

 

 

 

 

3 B09

1

53

60

6

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 B15

 

1

53

60

6

10

 

 

 

 

 

 

 

 

W42H1C00, C0Z

 

1

13

15

14

14

 

 

 

 

 

 

 

 

C06

460-3

1

22

25

10

10

 

 

 

 

 

 

 

 

3 C09

1

26

30

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 C15

 

1

26

30

10

10

 

 

 

 

 

 

 

 

W48H1A00, A0Z

 

1

37

50

8

10

 

 

 

 

 

 

 

 

A04

 

1

58

60

6

10

 

 

 

 

 

 

 

 

A05

230/208-1

1 or 2

63

70

6

8

37

26

50

30

8

10

10

10

3 A10

1 or 2

89

90

3

8

37

52

50

60

8

6

10

10

 

5 A15

 

1 or 2

89

90

3

8

37

52

50

60

8

6

10

10

5 A20

 

1 or 2

111

125

2

6

59

52

60

60

6

6

10

10

W48H1B00, B0Z

 

1

29

35

8

10

 

 

 

 

 

 

 

 

B06

 

1

47

50

8

10

 

 

 

 

 

 

 

 

3 B09

230/208-3

1

56

60

6

10

 

 

 

 

 

 

 

 

5 B15

 

1

56

60

6

10

 

 

 

 

 

 

 

 

5 B18

 

1 or 2

62

70

6

8

34

28

40

30

8

10

10

10

W48H1C00, C0Z

 

1

14

20

12

12

 

 

 

 

 

 

 

 

3 C09

460-3

1

27

30

10

10

 

 

 

 

 

 

 

 

5 C15

 

1

27

30

10

10

 

 

 

 

 

 

 

 

W60H1A00, A0Z

 

1

41

60

8

10

 

 

 

 

 

 

 

 

A05

 

1 or 2

67

80

4

8

41

26

60

30

8

10

10

10

3 A10

230/208-1

1 or 2

93

100

3

8

41

52

60

60

8

6

10

10

5 A15

 

1 or 2

93

100

3

8

41

52

60

60

8

6

10

10

5 A20

 

1 or 2

111

125

2

6

59

52

60

60

6

6

10

10

W60H1B00, B0Z

 

1

28

40

8

10

 

 

 

 

 

 

 

 

3 B09

230/208-3

1

55

60

6

10

 

 

 

 

 

 

 

 

5 B15

1

55

60

6

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 B18

 

1

62

70

6

10

34

28

40

30

8

10

10

10

W60H1C00, C0Z

 

1

16

20

12

12

 

 

 

 

 

 

 

 

3 C09

460-3

1

28

30

10

10

 

 

 

 

 

 

 

 

5 C15

 

1

28

30

10

10

 

 

 

 

 

 

 

 

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.

Caution: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

* Top outlet supply option is available only factory installed and only on the selected models.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.

Manual

2100-511

Page

23 of 27

TABLE 6

RECOMMENDEDAIRFLOW

 

Rated

Rated

Recommended

Factory Speed

Model

CFM *

ESP *

Airflow Range

Connection

 

 

 

 

 

W18H

600 1

.30

575 - 725

High

 

 

 

 

 

 

W24H

800

.20

700

- 950

High

 

 

 

 

 

W30H

1000

.40

930 - 1300

High

 

 

 

 

 

W36H

1100

.30

930 - 1350

High

 

 

 

 

 

W42H

1400

.30

1600 - 1150

High

 

 

 

 

 

 

W48H

1550

.20

1750

- 1285

High

 

 

 

 

 

 

W60H

1650

.30

1950

- 1375

High

 

 

 

 

 

 

* Rated CFM and ESP on high speed tap. 1 Rated CFM and ESP on low speed tap.

TABLE 7

INDOOR BLOWERPERFORMANCE

 

W18H, W24H

W18H

 

W30H, W36H

 

 

W42H, W48H

 

 

W60H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E.S.P.

High Speed

Low Speed

High Speed

Low Speed

High Speed

Low Speed

High Speed

Low Speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

H2O

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

Coil

.0

1020

975

750

700

1395

1315

950

935

1885

1800

1650

1600

2200

2000

1600

1450

.1

960

905

735

675

1340

1270

930

915

1770

1665

1550

1500

2100

1900

1525

1375

.2

865

800

710

650

1285

1190

910

885

1635

1540

1450

1400

2000

1800

.3

820

735

660

600

1205

1100

855

830

1500

1400

1350

1300

1875

1700

.4

735

650

605

550

1110

1000

800

755

1370

1285

1300

1175

1775

1600

.5

615

535

540

490

1005

870

1250

1150

1650

1475

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-511

Page

24 of 27

TABLES 8

MAXIMUM ESP OF OPERATION

ELECTRIC HEAT ONLY

Model

 

ESP

 

 

 

W18H1

A00

.50

A04

.50

W24H1

A08

.40

 

 

 

 

W24H1

B00

.50

B06

.50

 

 

 

 

W24H1

C00

.50

C06

.50

 

 

 

 

 

 

Front Outlet

Top Outlet

 

 

 

 

 

 

 

 

Low

High

Low

High

Model

Speed

Speed

Speed

Speed

 

 

 

 

 

 

 

A00

.50

.50

.50

.50

W30H1

A05

.40

.50

.40

.50

W36H1

A10

.35

.40

.25

.40

 

A15

.35

.40

NA

NA

 

 

 

 

 

 

 

B00

.50

.50

.50

.50

W30H1

B06

.40

.50

NA

NA

W36H1

B09

.35

.45

.30

.40

 

B15

.35

.45

NA

NA

 

 

 

 

 

 

 

C00

.50

.50

.50

.50

W30H1

C06

.50

.50

NA

NA

W36H1

C09

.30

.40

.35

.45

 

C15

.30

.40

NA

NA

 

 

 

 

 

 

Model

W42H1

W48H1

W60H1

 

 

 

 

 

 

Speed KW

High Speed

Low Speed

High Speed

Low Speed

High Speed

Low Speed

 

 

 

 

 

 

 

-A00

.50

.50

.50

.50

.50

.40

-A04

-----

-----

.50

.50

-----

-----

-A05

.50

.50

.50

.50

.50

.25

-A10

.50

.45

.50

.45

.50

.25

-A15

.50

.45

.50

.45

.50

.25

-A20

-----

-----

.50

.45

.50

.25

 

 

 

 

 

 

 

-B00

.50

.50

.50

.50

.50

.40

-B09

.50

.45

.50

.45

.50

.30

-B15

.50

.45

.50

.45

.50

.30

-B18

-----

-----

.50

.45

.50

.30

 

 

 

 

 

 

 

-C00

.50

.50

.50

.50

.50

.40

-C09

.50

.40

.50

.40

.50

.35

-C15

.50

.40

.50

.40

.50

.35

 

 

 

 

 

 

 

TABLE 9

ELECTRIC HEAT

 

Models

240V-1

208V-1

240V-3

208V-3

460V-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KW

Amps

BTUH

Amps

BTUH

Amps

BTUH

Amps

BTUH

Amps

BTUH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

16.7

13650

14.4

10240

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

20.8

17065

18.1

12800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

14.4

20500

12.5

15360

7.2

20500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

33.3

27300

28.8

20475

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

21.7

30600

18.7

23030

10.8

30700

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

41.6

34130

36.2

25600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

14.4

40950

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

62.5

51250

54.0

38400

36.2

51200

31.2

38400

18.0

51200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

43.3

61430

37.5

46100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

83.2

68260

72.1

51200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-511

Page

25 of 27

TABLE 10

OPTIONALACCESSORIES

Part Number

W18H1-A

W24H1-A

W24H1-B

W24H1-C

W30H1-A

W30H1-B

W30H1-C

W36H1-A

W36H1-B

W36H1-C

W42H1-A

W42H1-B

W42H1-C

W48H1-A

W48H1-B

W48H1-C

W60H1-A

W60H1-B

W60H1-C

 

 

EHWH02A-A04

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH02A-A08

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHW24H-A04

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHW24H-A08

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHW24H-B06

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH30-A05

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH30-A10

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH36-A05

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH36-A10

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH36-A15

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH03-B06

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KITS

EHW36H-B06

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH03-B09

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEATER

EHW30H-B15

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWC03A-C06

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH42-A05

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH42-A10

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH42-A15

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH-04-A20

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH05-B06

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH05-B09

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH05-B15

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH42-C06

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH05A-C09

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH05A-C15

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH04-A15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHWH04-A10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EHW05H-B18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BREAKERCIRCUIT(WMCB) & DISCONNECTPULL (WMPD)

WMCB-02A

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMPD-01C

 

 

 

X

 

 

X

 

 

X

 

 

X

 

 

X

 

 

X

 

 

 

WMCB-02B

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-03A

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-03B

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-06A

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-05B

 

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

WMCB-07B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-08A

 

 

 

 

 

 

 

 

 

 

X

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WMCB-09A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

2100-511

Page

26 of 27

TABLE 11

VENT & CONTROL OPTIONS

Part Number

Description

W18, W24

W30, W36

W42, W48, W60

CMC-14

ODT

 

X

X

X

 

 

 

 

 

 

CMC-15

Start Kit (230V 1-Phase only)

1

X

X

X

 

 

 

 

 

 

SK111

Start Kit (230V 1-Phase only)

2

X

X

X

 

 

 

 

 

 

CMC-28

LAC

 

X

X

X

 

 

 

 

 

BFAD-2

Barometric Fresh Air Damper - Standard

X

 

 

 

 

 

 

 

 

BOP-2

Blank Off Plate

 

X

 

 

 

 

 

 

 

 

MFAD-2

Motorized Fresh Air Damper

 

X

 

 

 

 

 

 

 

CRV-2

Commercial Ventilator - Spring Return

X

 

 

 

 

 

 

 

 

EIFM-2B

Economizer

 

X

 

 

 

 

 

 

 

ERVF-A2

Energy Recovery Ventilator - 230 Volt

X

 

 

 

 

 

 

 

BFAD-3

Barometric Fresh Air Damper - Standard

 

X

 

 

 

 

 

 

 

BOP-3

Blank Off Plate

 

 

X

 

 

 

 

 

 

 

MFAD-3

Motorized Fresh Air Damper

 

 

X

 

 

 

 

 

 

CRVS-3

Commercial Ventilator - Spring Return

 

X

 

 

 

 

 

 

CRVP-3

Commercial Ventilator - Power Return

 

X

 

 

 

 

 

 

 

EIFM-3C

Economizer

 

 

X

 

 

 

 

 

 

ERVF-A3

Energy Recovery Ventilator - 230 Volt

 

X

 

 

 

 

 

 

ERVF-C3

Energy Recovery Ventilator - 460 Volt

 

X

 

 

 

 

 

 

BFAD-5

Barometric Fresh Air Damper - Standard

 

 

X

 

 

 

 

 

 

BOP-5

Blank Off Plate

 

 

 

X

 

 

 

 

 

 

MFAD-5

Motorized Fresh Air Damper

 

 

 

X

 

 

 

 

 

CRVS-5

Commercial Ventilator - Spring Return

 

 

X

 

 

 

 

 

CRVP-5

Commercial Ventilator - Power Return

 

 

X

 

 

 

 

 

 

EIFM-5C

Economizer

 

 

 

X

 

 

 

 

 

ERVF-A5

Energy Recovery Ventilator - 230 Volt

 

 

X

 

 

 

 

 

ERVF-C5

Energy Recovery Ventilator - 460 Volt

 

 

X

 

 

 

 

 

 

1PTCR Start Kit can be used with all -A single phase models. Increases starting torque 2-3x. Not used for -B or -C three phase models. Do not use if SK111 is used.

2Start Capacitor and potential relay start kit can be used with all -A single phase models. Increases starting torque 9x. Not used for -B or -C three phase models. Do not use if CMC-15 is used.

Manual

2100-511

Page

27 of 27