Engineering Data and

Installation Manual

WT MODELS WATER-TO-WATER HEAT PUMPS & HYDRONIC AIR HANDLERS

REVISION: B

20D082-08NN

20D082-08NN

Table of Contents:

Section 1: Model Nomenclature

Model Nomenclature................................................................................................................4 - 5

Section 2: Installation Introduction

Introduction, Pre-Installation, Components ............................................................................6 - 7

Section 3: Installation Considerations

Installation Considerations .............................................................................................................8

Heating Mode Operation Considerations...................................................................................9

Buffer Tank Sizing and Usage.......................................................................................................10

Section 4: Installation

Unit and Air Handler Placement ..................................................................................................11

Unit Dimensional Data ...........................................................................................................12 - 14

(Water-to-Water Units, Hydronic Air Handlers/”A” Coils)

Section 5: Unit Piping Installation

Interior Piping, Water Quality .................................................................................................15 - 19

Section 6: Antifreeze

Overview ..................................................................................................................................20 - 21

Anitfreeze Charging ......................................................................................................................22

Section 7: Desuperheater Installation

Installation ...............................................................................................................................23 - 25

Section 8: Controls

Controls....................................................................................................................................26 - 29

Hydronic Air Handler Airflow Settings

...........................................................................................30

Wiring Diagrams ......................................................................................................................31 - 39

Section 9: Equipment Start-Up Procedures

Equipment Start-Up Checklist and Form..............................................................................40 - 41

Section 10: Troubleshooting

Troubleshooting Guide..........................................................................................................42 - 45

Superheat/Subcooling Conditions.......................................................................................46 - 47

Troubleshooting Form....................................................................................................................48

Section 11: Engineering Data

Unit and Air Handler Electrical Data ....................................................................................49 - 50

Glossary & Flow Rate Calculations ..............................................................................................51

AHRI Performance Data ...............................................................................................................52

Extended Unit Performance Data ........................................................................................53 - 64

Air Handler & “A” Coil Performance Data .................................................................................65

Section 17: Forms

Warranty Registration....................................................................................................................66

Warranty Claim Form.....................................................................................................................67

WT Models, Rev.: B

3

Enertech Global

Section 1: WT Water-To-Water Unit Model Nomenclature

Section 1: Air Handler Model Nomenclature

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4

WT Models, Rev.: B

Section 1: Uncased ”A” Coil Model Nomenclature

H

Section 1: Cased”A” Coil Model Nomenclature

H

WT Models, Rev.: B

5

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Section 2: Installation Introduction

INTRODUCTION

This geothermal heat pump provides heated water and chilled water as well as optional domestic water heating capability. Engineering and quality control is built into every geothermal unit. Good performance depends on proper application and correct installation.

equivalent protective covering. Cap or recap unit connections and all piping until unit is installed. Precautions must be taken to avoid physical damage and contamination which may prevent proper start-up and may result in costly equipment repair.

Notices, Cautions, Warnings, & Dangers:

“NOTICE” Notification of installation, operation or maintenance information which is important, but which is NOT hazard-related.

⚠

CAUTION

⚠

DO NOT OPERATE THE GEOTHERMAL

HEAT PUMP UNIT DURING BUILDING

CONSTRUCTION PHASE.

“CAUTION”

Indicates a potentially hazardous situation or an unsafe practice which, if not avoided, COULD result in minor or moderate injury or product or property damage.

“WARNING”

Indicates potentially hazardous situation which, if not avoided, COULD result in death or serious injury.

Storage

All geothermal units should be stored inside in the original packaging in a clean, dry location.

Units should be stored in an upright position at all times. Units should not be stacked unless specially noted on the packaging.

“DANGER”

Indicates an immediate hazardous situation which, if not avoided, WILL result in death or serious injury.

Inspection

Upon receipt of any geothermal equipment, carefully check the shipment against the packing slip and the freight company bill of lading. Verify that all units and packages have been received. Inspect the packaging of each package and each unit for damages.

Insure that the carrier makes proper notation of all damages or shortage on all bill of lading papers. Concealed damage should be reported to the freight company within 15 days.

If not filed within 15 days the freight company can deny all claims.

Pre-Installation

Special care should be taken in locating the geothermal unit. Installation location chosen should include adequate service clearance around the unit. All units should be placed on a formed plastic air pad, or a high density, closed cell polystyrene pad slightly larger than the base of the unit. If units are being placed on racking, the unit must be placed on a solid foundation. All units should be located in an indoor area where the ambient temperature will remain above 55°F and should be located in a way that piping and ductwork or other permanently installed fixtures do not have to be removed for servicing and filter replacement.

Pre-Installation Steps:

Note:

Notify Enertech Global, LLC shipping department of all damages within 15 days. It is the responsibility of the purchaser to file all necessary claims with the freight company.

Unit Protection

Protect units from damage and contamination due to plastering (spraying), painting and all other foreign materials that may be used at the job site. Keep all units covered on the job site with either the original packaging or

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1.

Compare the electrical data on the unit nameplate with packing slip and ordering information to verify that the correct unit has been shipped.

2.

Inspect all electrical connections and wires. Connections must be clean and tight at the terminals, and wires should not touch any sharp edges or copper pipe.

3.

Verify that all refrigerant tubing is free of dents and kinks. Refrigerant tubing should not be touching other unit components.

WT Models, Rev.: B

Section 2: Installation Introduction

4.

Before unit start-up, read all manuals and become familiar with unit components and operation. Thoroughly check the unit before operating.

5.

For A-Coil installations, it is recommended that coil be sprayed with liquid detergent thoroughly and rinsed thoroughly before installation to assure proper drainage of condensate from the coil fins to eliminate water blowoff and to assure maximum coil performance. If not sprayed approximately

50 hours of break in time is required to achieve the same results.

Components

Master Contactor:

Energizes Compressor and optional Hydronic Pump and/or

Desuperheater pump package.

Logic Board:

Logic Board operates the compressor and protects unit by locking out when safety switches are engaged. It also provides fault indicator(s).

Terminal Strip:

Provides connection to the thermostat or other accessories to the low voltage circuit.

⚠

CAUTION

⚠

Transformer:

Converts incoming (source) voltage to 24V AC.

ALL GEOTHERMAL EQUIPMENT IS

DESIGNED FOR INDOOR INSTALLATION

ONLY. DO NOT INSTALL OR STORE UNIT

IN A CORROSIVE ENVIRONMENT OR IN

A LOCATION WHERE TEMPERATURE AND

HUMIDITY ARE SUBJECT TO EXTREMES.

EQUIPMENT IS NOT CERTIFIED FOR

OUTDOOR APPLICATIONS. SUCH

INSTALLATION WILL VOID

ALL WARRANTIES.

Low Voltage Breaker:

Attached directly to transformer, protects the transformer and low voltage circuit.

Reversing Valve:

Controls the cycle of the refrigerant system (heating or cooling).

Energized in cooling mode.

High Pressure Switch:

Protects the refrigerant system from high refrigerant pressure, by locking unit out if pressure exceeds setting.

⚠

WARNING

⚠

Low Pressure Switch:

Protects the refrigerant system from low suction pressure, if suction pressure falls below setting.

FAILURE TO FOLLOW THIS CAUTION MAY

RESULT IN PERSONAL INJURY. USE CARE

AND WEAR APPROPRIATE PROTECTIVE

CLOTHING, SAFETY GLASSES AND

PROTECTIVE GLOVES WHEN SERVICING

UNIT AND HANDLING PARTS.

Flow Switch (Freeze Protection Device):

Protects the water heat exchanger from freezing, by shutting down compressor if water flow decreases.

⚠

CAUTION

⚠

Compressor (Copeland Scroll):

Pumps refrigerant through the heat exchangers and pressurizes the refrigerant, which increases the temperature of the refrigerant.

BEFORE DRILLING OR DRIVING ANY

SCREWS INTO CABINET, CHECK TO BE

SURE THE SCREW WILL NOT HIT ANY

INTERNAL PARTS OR REFRIGERANT LINES.

Shipping Bolts:

This unit is equipped with the new COMPRESSOR ISOLATION feature.

Do not

l

oosen or remove the bolts.

WT Models, Rev.: B

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Section 3: Installation Considerations

Consumer Instructions:

Dealer should instruct the consumer in proper operation, maintenance, filter replacements, thermostat and indicator lights. Also provide the consumer with the manufacturer’s Owner's Manual for the equipment being installed.

Enertech Global D-I-Y Policy:

Enertech Global’s geothermal heat pumps and system installations may include electrical, refrigerant and/or water connections. Federal, state and local codes and regulations apply to various aspects of the installation. Improperly installed equipment can lead to equipment failure and health/safety concerns. For these reasons, only qualified technicians should install a Enertech Global built geothermal system.

Thermostat:

Thermostats should be installed approximately 54 inches off the floor on an inside wall in the return air pattern and where they are not in direct sunlight at anytime.

Loop Pumping Modules:

Must be wired to the heat pump’s electric control box. A special entrance knockout is provided below the thermostat entrance knockout. A pump module connection block, connected to the master contactor, and circuit breaker is provided to connect the Pump Module wiring.

Because of the importance of proper installation, Enertech Global does not sell equipment direct to homeowners. Internet websites and HVAC outlets may allow for purchases directly by homeowners and doit-yourselfers, but Enertech Global offers no warranty on equipment that is purchased via the internet or installed by persons without proper training.

Desuperheater Package:

Water heating is standard on all residential units (units may be ordered without). It uses excess heat during both heating and cooling cycles, to provide hot water for domestic needs. A double wall desuperheater exchanger (coil) located between the compressor and the reversing valve, extracts superheated vapor to heat domestic water; still satisfying its heating and cooling needs. The water circulation pump comes pre-mounted in all residential units, but must be electrically connected to the master contactor. Leaving it disconnected ensures that the pump will not run without a water supply.

Enertech Global has set forth this policy to ensure installations of Enertech Global geothermal systems are done safely and properly. The use of well-trained, qualified technicians helps ensure that your system provides many years of comfort and savings.

The Desuperheater package can make up to

60% (depending on heat pump usage) of most domestic water needs, but a water heater is still recommended.

Equipment Installation:

Special care should be taken in locating the unit. All units should be placed on a formed plastic air pad, or a high density, closed cell polystyrene pad slightly larger than the base of the unit. All units should be located in an indoor area were the ambient temperature will remain above

55°F and should be located in a way that piping and ductwork or other permanently installed fixtures do not have to be removed for servicing and filter replacement.

Desuperheater Piping:

All copper tubes

& fittings should be 5/8” O.D (1/2” nom) minimum with a maximum of 50ft separation.

Piping should be insulated with 3/8” wall closed cell insulation.

Note:

Copper is the only approved material for piping the desuperheater.

Electrical:

All wiring, line and low voltage, should comply with the manufacturer's recommendations, The National Electrical

Code, and all local codes and ordinances.

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WT Models, Rev.: B

Section 3: Operation Considerations

Guidelines For Heating Mode Operation For Water-To-Water Units Using Scroll Compressors

Enertech recommends the aquastat setting not be set above 110°F for the storage tank temperature. Excessive vibration and part failure can occur at higher than recommended temperature settings. The higher operating temperatures cause substantial efficiency and capacity reductions.

The performance is negatively affected as the unit operates at the higher water temperatures and it benefits the unit and the homeowner to operate at or below the recommended water temperature of 110°F.

With the lower efficiency created by higher water temperatures, the output capacity of the unit is decreased along with the efficiency. When operating at the higher entering water temperature the heat of extraction is significantly reduced, as well. In order to maintain the needed capacity, more of the heat is coming from the compressor working harder to compress the refrigerant.

The illustration below shows the parameters which are safe for compressor operation. Based on the leaving load water of 120°F, the loop would have to maintain 35°F to operate within the acceptable operating conditions for the compressor. Once your loop temperatures drop below 35°F, the acceptable leaving load temperature drops below 120°F. If you are designing loops for 30°F, the recommended leaving load temperature is 110°F.

SCROLL COMPRESSOR OPERATING CONDITIONS (WATER TO WATER)

HEATING MODE OPERATION

130°F

•

FAILURE ZONE

Outside Safe Operating Range

125°F

•

Safety

Factor

120°F

• •

FAILURE ZONE

115°F

•

Acceptable Operating Conditions

110°F

•

•

Safety

Factor

100°F

•

Acceptable Operating Conditions

10°F

•

15°F

•

20°F

•

25°F

•

30°F

•

35°F

•

40°F

•

50°F

Source Entering Water Temperature

•

55°F

•

60°F

•

65°F

Because the water-to-water machines have become so popular for providing heated water for a multitude of uses, we’ve provided the above chart for reference.

The obvious correlation is that the warmer the Source Entering Water Temperature, the hotter the Load Leaving Water Temperature can be, to a point. R410A can only handle up to about

125°F Load Leaving Water Temperature before putting the compressor at risk.

Actual usage, and choices of heat distribution devices need to follow the acceptable operating conditions presented in the chart. If a question arises, please consult the Technical

Services Department.

WT Models, Rev.: B

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Section 3: Buffer Tanks

BUFFER TANKS

Virtually all water-to-water heat pumps used for hydronic applications require a buffer tank to prevent equipment short cycling, and to allow lower flow rates through the water-towater unit than through the hydronic delivery system. The following are considerations for buffer tank sizing.

• The size of the buffer tank should be determined based upon the predominant use of the water-to-water equipment

(heating or cooling).

• The size of the buffer tank is based upon the lowest operating stage of the equipment.

For example, a water-to-water heat pump with a two-stage compressor or two compressors may be sized for first stage capacity, reducing the size of the tank (twostage aquastat required).

• Pressurized buffer tanks are sized differently than non-pressurized tanks (see guidelines listed below).

Pressurized buffer tanks for predominately heating applications should be sized at one (1)

U.S. gallon per 1,000 Btuh of heating capacity

(10 gallons per ton may also be used) at the maximum entering source water temperature

(EST) and the minimum entering load water temperature (ELT), the point at which the waterto-water unit has the highest heating capacity, usually 50-70°F EST and 80-90°F ELT.

For predominately cooling applications, pressurized buffer tanks should be sized at one (1) U.S. gallon per 1,000 Btuh of cooling capacity (10 U.S. gallons per ton may also be used) at the minimum EST and the maximum

ELT, the point at which the water-to-water unit has the highest cooling capacity, usually 50-

70°F EST and 50-60°F ELT.

Select the size of the tank based upon the larger of the calculations (heating or cooling).

Non-pressurized buffer tanks must also be sized based upon predominate use (heating or cooling) and based upon the lowest capacity stage. Requirements for storage are less according to the manufacturer of the HSS series non-pressurized buffer tank. Using the same conditions for maximum heating and cooling capacity mentioned above, non-pressurized buffer tanks require 6 U.S. gallons per ton.

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WT Models, Rev.: B

Section 4: Unit Placement

UNIT PLACEMENT

When installing a geothermal heating and cooling unit, there are several items the installer should consider before placing the equipment.

1.

Service Access.

Is there enough space for service access? A general rule of thumb is at least 2 feet in the front and 2 feet on at least one side.

2.

Unit Air Pad.

All geothermal heating and cooling equipment should be placed on either a formed plastic air pad, or a high density, closed cell polystyrene pad. This helps eliminate vibration noise that could be transmitted through the floor.

3.

If units are being placed on racking, the unit must be placed on a solid foundation covering the full base of the unit. Also, utilize a foam pad between the unit and the rack.

4.

The installer must verify that all applicable wiring, piping, and accessories are correct and on the job site.

PRE-INSTALLATION

Before you fully install the geothermal equipment, it is recommended you go through this quick checklist before placing the equipment.

⧠

⧠

Fully inspect the unit after unpacking.

Locate the Unit Start-Up form from this manual and have it available as the unit installation proceeds.

HYDRONIC AIR HANDLER INSTALLATION

T hese units have a 0” minimum clearance to combustible materials rating from all cabinet surfaces. The unit should be i9nstalled with serviceability clearance of 30” from the front of the unit. The unit can be serviced entirely from the front, including replacing the filter.

Be sure and route primary and secondary drain connections so as not to obstruct replacement of filter.

UPFLOW APPLICATION

In an upflow installation the discharge outlet is at the top. Care should be taken to insure unit is level to permit proper condensate drainage.

Normal upflow installation will be in a basement or closet. If installed in a closet, the closet should have a platform framed in, with an opening on top of the platform centered in the closet.

Connect the supply air outlet to a warm air plenum. Install return air grilles from outside the closet to space below the platform.

Platform must be at least 10” above the floor. If installed in a basement, run supply and return ductwork in accordance with local codes.

Caution! A “P” trap must be installed in the coil drain line! Cap unused drain fittings.

HORIZONTAL APPLICATION

Horizontal application will normally be used in an attic or crawl space. This type of installation requires a return air duct be attached to the unit inlet. The opposite end of the return air duct is attached to a return air filter grill through the ceiling or wall.

Remove filter from unit if filter grill is used. The unit is shipped in right to left configuration.

For left to right applications

(Begin with the unit in the verticl upright poisition and before connecting drains and refrigerant lines)

remove coil and doors and move horizontal pan to right side. Reinstall coil and doors.

CAUTION: IT IS MANDATORY TO USE AN

EMERGENCY AUXILLARY DRAIN PAN WITH

ANY COIL OR AIR HANDLER INSTALLED IN AN

ATTIC OR ABOVE A FINISHED CEILING!

DOWNFLOW APPLICATION

Contact Enertech for proper downflow kit including instructions.

Unit is shipped from the factory arranged to be installed in a vertical upflow or horizontal right to left airflow position (standard) or field convertible to a horizontal left to right airflow position.

WT Models, Rev.: B

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Section 4: Air Handler Dimensional and Physical Data

FRONT VIEW

FRONT VIEW

G

G

Water Connections, Hydronic (Sweat)

Water Connections, Hydronic (Sweat)

Model

Size

(tons)

024 2

036 3

048-060 4 - 5

Primary Drain

Connection

(Horizontal)

(Horizontal)

Primary Drain

Connection

(Vertical)

(Vertical)

A

17 5/8

21 1/8

3

25

B

A

A

21

21

22

Return

Return

Alternate Drain

Connection

(Horizontal)

(Horizontal)

Supply

Supply

Alternate Drain

Connection

(Vertical)

(Vertical)

DIMENSIONAL DATA

B

All Dimensions in Inches

16 1/3

19 3/4

21

C

23 3/8

C

C

D

20 1/4

20 1/4

19 3/4

D

20 1/4

20 1/2

E

15 1/2

19

E

15 1/2

19

19 5/8

F

12 1/2

F

12 1/2

16 1/8

G

43

12 1/2 48 1/4

58 3/4

Water

Connection

Size (Sweat,

“L” Copper)

G

G

12 1/2 48 1/4

0.875” O.D.

48 1/4

TOP VIEW

TOP VIEW

F

F

Front

BOTTOM VIEW

BOTTOM VIEW

D

D

E

E

C

C

A

A

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B

B

WT Models, Rev.: B

Section 4: Cased and Uncased “A” Coil Dimensional and Physical Data

I

G

D

F

C

H

E

Drain Pan

Model

PAN REMOVED FOR CLARITY

Front

Size

(Tons)

A

024

036

048

060

2

3

4

5

B C D E

16.63 19.00

18.5

16.00

4.00

19.63 19.00

21.0

20.00

6.76

23.92 20.50

28.0

28.58

9.38

23.92 20.50

28.0

28.58

9.38

B

Side

F

8.67

6.77

9.38

9.38

G

8.67

6.77

9.38

9.38

H

3.27

6.04

8.66

8.66

I

16.00

16.00

17.50

17.50

Drain Pan

A

Back

Weight

(lbs)

Water

Connection

Size (Sweat,

“L” Copper)

38

46

48

67

0.875” O.D.

0.045” Wall

Return

Supply

A B C D E

All Dimensions In Inches (nominal)

F G H I J K L M N O P Q

Weight

(lbs)

024

036

060

2

3

5

17.5 21.0 20.0 15.2 19.2 2.1 4.1 1.6 2.3 11.1 8.5 13.8 9.2 13.5 8.8 .88 8.8

21.0 21.0 24.0 18.7 19.2 4.0 6.0 1.8 2.3 13.0 10.5 15.6 7.8 14.6 10.5 .88 .38

24.5 22.0 34.0 22.0 19.9 2.2 4.2 1.9 2.3 17.3 14.8 19.8 10.3 19.6 12.5 .88 .38

NOTES:

1. The AC series coils are designed as high efficiency “A” coils to be installed on new and existing indoor furnaces. These coils may be used in upflow and downflow applications.

2. Coils are ETL and CSA approved.

3. Primary and secondary drain connections are available on the

LH or RH side of the drain pan, and are 3/4” FPT. Center line of drains located from pan corner, 1 1/2” for primary and 3 1/2” for secondary.

4. Drain pan is injection molded high temperature UL approved plastic.

⚠

WARNING

⚠

IF USING A DUAL FUEL APPLICATION,

“A” COIL MUST BE INSTALLED ON

THE OUTLET OF THE FURNACE.

INSTALLATION ON THE RETURN

COULD CAUSE FURNACE HEAT

EXCHANGER FAILURE, AND MAY

VOID FURNACE WARRANTY.

45

50

72

WT Models, Rev.: B

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Section 4: Unit Dimensional Data

7.500

16.000

Out (Source Loop)

Out (Load Loop)

2.000

I

H

G

F

Out (Load Loop)

Out (Source Loop)

In (Source Loop)

In (Load Loop)

HWG Water Out

HWG Water In

A

H & I

In (Source Loop)

In (Load Loop)

A

E

D

FRONT VIEW

Single Compressor

F & G

SIDE VIEW

*Water Connection Option

(

Available on WT060 ONLY

)

B

2.000

C

E

D

F

F2

G

G2

HWG Water Out

HWG Water In

In (Load Loop #1)

In (Load Loop #2)

In (Source Loop #1)

In (Source Loop #2)

Out (Source Loop)

Out (Load Loop)

A

H

I

FRONT VIEW

Dual Compressor

TOP VIEW

Dimensions

Single Compressor Units

Model

036

048

Overall Cabinet HWG Water

A

24

24

B

26

26

C

34

34

Dual Compressor Units

D E F

2.83 5.83 8.83

2.83 5.83 8.83

Load Water

F2 I G

Source Water

G2 H

N/A 17.83 11.83 N/A 14.83

N/A 17.83 11.83 N/A 14.83

Load Loop Source Loop

IN

1"

1"

060 24 26 36 2.83 5.83 8.83

N/A 17.83 11.83 N/A 14.83

1"

060* 24 32 36 N/A N/A 4.16

N/A 21.10 4.16

N/A 21.10

1"

OUT

1"

1"

1"

1"

IN

1"

1"

1"

1"

OUT

1"

1"

1"

1"

092

120

144

HWG Water Load Water Source Water

B C

D E

F F2 I G G2 H

24 30 48 19.71 21.96 17.83 14.83 2.83 11.83 8.83 5.83

24 30 48 19.71 21.96 17.83 14.83 2.83 11.83 8.83 5.83

24 30 48 19.71 21.96 17.83 14.83 2.83 11.83 8.83 5.83

Weight

315

345

390

410

Load Loop Source Loop

IN OUT IN OUT

Weight

1" 1.25" 1" 1.25" 550

1"

1"

1.5"

1.5"

1"

1"

1.5"

1.5"

670

670

Factory

Charge (oz)

65

73

101

101

Factory

Charge (oz)

68 EA

76 EA

81 EA

Notes:

- *

Side Connection Option available on WT060 ONLY

- All models & brands (see exception below) use FPT fittings for all source & load loop connections.

-

Geocomfort,

residential only, models 036-060 use 1" Double O-Ring fittings for source loop connections.

- Dual Compressor: There are two "IN" connections, but only one "Out" Connection (Source & Load)

- All Desuperheater connections are 3/4" FPT.

- Electrical connections are 1" for high voltage, 1/2" for low voltage

*

All measurements are in inches.

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WT Models, Rev.: B

Section 5: Unit Piping Installation

Open Loop Piping

Placement of the components for an open loop system are important when considering water quality and long term maintenance. The water solenoid valve should always be placed on the outlet of the heat pump, which will keep the heat exchanger under pressure when the unit is not operating. If the heat exchanger is under pressure, minerals will stay in suspension.

Water solenoid valves are also designed to close against the pressure, not with the pressure.

Otherwise, they tend to be noisy when closing.

velocity noise. Always double check flow rate at the P/T ports to make sure the ball valve adjustments have not lowered water flow too much, and essentially taken the flow regulator out of the equation. It’s a good idea to remove the ball valve handles once the system is completed to avoid nuisance service calls.

Hose kits are optional, but make for an easier installation, since the P/T ports and connections are included. The hose also helps to isolate the heat pump from the piping system.

A flow regulator should be placed after the water solenoid valve. Always check the product specification catalog for proper flow rate. A calculation must be made to determine the flow rate, so that the leaving water temperature does not have the possibility of freezing.

Other necessary components include a strainer, boiler drains for heat exchanger flushing, P/T ports and ball valves. Ball valves allow the water to be shut off for service, and also help when velocity noise is noticeable through the flow regulator. Spreading some of the pressure drop across the ball valves will lessen the

Since the heat pump can operate at lower waterflow on first stage, two stage units typically include two water solenoid valves to save water. The flow regulators should be sized so that when one valve is open the unit operates at first stage flow rate, and when both valves are open, the unit operates at full load flow rate. For example, a 4 ton unit needs approximately 4 GPM on first stage, and approximately 7 GPM at full load. The flow regulator after the first valve should be 4 GPM, and the flow regulator after the second valve should be 3 GPM. When both valves are open, the unit will operate at 7 GPM.

Figure 1: Open Loop Piping Example

TYPICAL OPEN LOOP PLUMBING

AND VALVE INSTALLATION EXAMPLE

HEAT

PUMP

Optional

Hose Kit*

IN

OUT

P/T Port

(2 required) WYE Strainer

Ball Valve

(2 required)

S

Single

Speed

Units

From Well

Flow Regulator**

Boiler Drain for Heat

Exchanger

Maintenance

(2 required)

Water

Solenoid

Valve

*Hose kit used for unit isolation, includes fittings for P/T ports.

**See product specifications for flow rates.

WT Models, Rev.: B

15

Discharge Line

S

S

Two-

Stage

Units

Note:

All GWT, HWT, & TWT units are two-stage units.

Not recommended for

3 ton and smaller. Use single solenoid and flow regulator.

Enertech Global

Section 5: Unit Piping Installation

Water Quality

The quality of the water used in geothermal systems is very important. In closed loop systems the dilution water (water mixed with antifreeze) must be of high quality to ensure adequate corrosion protection. Water of poor quality contains ions that make the fluid “hard” and corrosive. Calcium and magnesium hardness ions build up as scale on the walls of the system and reduce heat transfer. These ions may also react with the corrosion inhibitors in glycol based heat transfer fluids, causing them to precipitate out of solution and rendering the inhibitors ineffective in protecting against corrosion. In addition, high concentrations of corrosive ions, such as chloride and sulfate, will eat through any protective layer that the corrosion inhibitors form on the walls of the system.

Ideally, de-ionized water should be used for dilution with antifreeze solutions since deionizing removes both corrosive and hardness ions. Distilled water and zeolite softened water are also acceptable. Softened water, although free of hardness ions, may actually have increased concentrations of corrosive ions and, therefore, its quality must be monitored. It is recommended that dilution water contain less than 100 PPM calcium carbonate or less than

25 PPM calcium plus magnesium ions; and less than 25 PPM chloride or sulfate ions.

In an open loop system the water quality is of no less importance. Due to the inherent variation of the supply water, it should be tested prior to making the decision to use an open loop system. Scaling of the heat exchanger and corrosion of the internal parts are two of the potential problems. The Department of

Natural Resources or your local municipality can direct you to the proper testing agency.

Please see Table 1 for guidelines.

Table 1: Water Quality

Potential

Problem

Chemical(s) or Condition

Scaling

Corrosion

Calcium & Magnesium Carbonate pH Range

Total Dissolved Solids

Ammonia, Ammonium Hydroxide

Ammonium Chloride,

Ammonium Nitrate

Range for Copper

Heat Exchangers

Less than 350 ppm

7 - 9

Less than 1000 ppm

Less than 0.5 ppm

Less than 0.5 ppm

Cupro-Nickel Heat

Exchanger Ranges

Less than 350 ppm

5 - 9

Less than 1500 ppm

Less than 0.5 ppm

Less than 0.5 ppm

Stainless Steel Heat

Exchanger Ranges

Less than 0.1 ppm

7 - 9

No rigid setpoint

No Limit

Less than 2-20 ppm

Less than 125 ppm Less than 125 ppm None Allowed

Biological

Growth

Erosion

Chlorine

Hydrogen Sulfide

Iron Bacteria

Iron Oxide

Suspended Solids - Note 5

Water Velocity

Less than 0.5 ppm

None Allowed

None Allowed

Less than 1 ppm

Less than 10 ppm

Less than 8 ft/s

Less than 0.5 ppm

None Allowed

None Allowed

Less than 1 ppm

Less than 10 ppm

Less than 12 ft/s

Less than 1 ppm*

Less than 0.05 ppm

None Allowed

Less than 0.2 ppm

16-20 mesh strainer recommended

Less than 5.5 m/s in the port

* Chlorine can not be used with 304 Stainless Steel.

Notes

1. Hardness in ppm is equivalent to hardness in mg/l.

2. Grains/gallon = ppm divided by 17.1.

3. Unit internal heat exchangers are not recommended for pool applications or water outside the range of the table.

Secondary heat exchangers are required for pool or other applications not meeting the requirements shown above.

4. Saltwater applications (approx. 25,000 ppm) require secondary heat exchangers due to copper piping between the heat exchanger

and the unit fittings.

5. Filter for maximum of 600 micron size.

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WT Models, Rev.: B

Section 5: Unit Piping Installation

Interior Piping

All interior piping must be sized for proper flow rates and pressure loss. Insulation should be used on all inside piping when minimum loop temperatures are expected to be less than

50°F. Use the table below for insulation sizes with different pipe sizes. All pipe insulation should be a closed cell and have a minimum wall thickness of 3/8”. All piping insulation should be glued and sealed to prevent condensation and dripping. Interior piping may consist of the following materials: HDPE, copper, brass, or rubber hose (hose kit only).

PVC is not allowed on pressurized systems.

Typical Pressurized Flow Center Installation

The flow centers are insulated and contain all flushing and circulation connections for residential and light commercial earth loops that require a flow rate of no more than 20 gpm. 1-1/4” fusion x 1” double o-ring fittings

(AGA6PES) are furnished with the double o-ring flow centers for HDPE loop constructions.

Various fittings are available for the double o-ring flow centers for different connections.

See figure 2 for connection options. A typical installation will require the use of a hose kit.

Matching hose kits come with double o-ring adapters to transition to 1” hose connection.

Table 2: Pipe Insulation

Piping Material

1” IPS Hose

1” IPS PE

1-1/4” IPS PE

2” IPS PD

Insulation Description

1-3/8” ID - 3/8” Wall

1-1/4” ID - 3/8” Wall

1-5/8” ID - 3/8” Wall

2-1/8” ID - 3/8” Wall

Note: Threaded flow centers all have 1” FPT connections. Matching hose kits come with the

AGBA55 adapter needed to transition from 1”

FPT to 1” hose.

Figure 2: Typical Single Unit Piping Connection (Pressurized Flow Center)

To/From

Loop Field

~~

Flow

Center

Hose

Kit

P/T

Ports

GSHP

Source Water Out

Source Water In

Equipment Pad

2” Polyethylene Foam

WT Models, Rev.: B

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Enertech Global

Section 5: Unit Piping Installation

Typical Non-Pressurized Flow Center Installation

Standing column flow centers are designed to operate with no static pressure on the earth loop. The design is such that the column of water in the flow center is enough pressure to prime the pumps for proper system operation and pump reliability. The flow center does have a cap/seal, so it is still a closed system, where the fluid will not evaporate. If the earth loop header is external, the loop system will still need to be flushed with a purge cart. The non-pressurized flow center needs to be isolated from the flush cart during flushing because the flow center is not designed to handle pressure. Since this is a non-pressurized system, the interior piping can incorporate all the above-mentioned pipe material options (see interior piping), including

PVC. The flow center can be mounted to the wall with the included bracket or mounted on the floor as long as it is properly supported.

Figure 3: Typical Single Compressor Unit Piping Connection

Hydronic Fan Coil

Shutoff

Valve

Make-up

Water Line

Backflow

Preventer

Pressure Reducing

Valve

Air Vent

Water Out

Water In

Expansion Tank

Check Valve

To / From

Earth Loop

Pressurized

Storage

Tank

Shutoff

Valves

Water to Water

Heat Pump

Out (Load Loop)

Out (Ground Loop)

In (Ground Loop)

In (Load Loop)

Out (Desuperheater)

In (Desuperheater)

Figure 4: Typical Dual Compressor Unit Piping Connection

Make-up

Water Line

Hydronic Fan Coil

Shutoff

Valve

Backflow

Preventer

Pressure Reducing

Valve

Air Vent

Water Out

Water In

Expansion Tank

Check Valve

Pressurized

Storage

Tank

In (Load Loop #1)

In (Ground Loop #1)

In (Ground Loop #2)

From

Earth Loop

Heat Pump

Enertech Global

Out (Ground Loop)

Out (Load Loop)

18

To Earth Loop

WT Models, Rev.: B

Section 5: Unit Piping Installation

Figure 5: Typical Storage Tank Piping For Radiant Floor Heating

Storage

Tank

Shutoff

Valves

Water to Water

Heat Pump

Out (Load Loop)

In (Load Loop)

Check Valves Installed

APSMA PUMP SHARING MODULE

The pump sharing module, part number

Figure 1: Board Layout

APSMA, is designed to allow two units to share one flow center. With the APSMA module, either unit can energize the pump(s). Connect the units and flow center as shown in Figure

11, below. Figure 12 includes a schematic of the board. The module must be mounted in a

NEMA enclosure or inside the unit control box.

Local code supersedes any recommendations in this document.

240VAC

Power Source

Relay

240V IN 240V OUT

Relay

24VAC connection to unit #1

(Y1 & C From Thermostat)

24VAC 24VAC

240VAC to Pump(s)

24VAC connection to unit #2

(Y1 & C From Thermostat)

WT Models, Rev.: B

19

24VAC input from unit #1

24VAC input from unit #2

DC

Bridge

+

LED

-

Diode

+

-

Diode

RY1

RY2

RY1

RY2

240VAC input

240VAC to pump(s)

Enertech Global

Section 6: Antifreeze

Antifreeze Overview

In areas where minimum entering loop temperatures drop below 40°F, or where piping will be routed through areas subject to freezing, antifreeze is required. Alcohols and glycols are commonly used as antifreeze. However, local and state/provincial codes supersede any instructions in this document. The system needs antifreeze to protect the coaxial heat exchanger from freezing and rupturing.

Freeze protection should be maintained to

15°F below the lowest expected entering loop temperature. For example, if 30°F is the minimum expected entering loop temperature, the leaving loop temperature could be 22 to 25°F. Freeze protection should be set at

15°F (30-15 = 15°F). To determine antifreeze requirements, calculate how much volume the system holds. Then, calculate how much antifreeze will be needed by determining the percentage of antifreeze required for proper freeze protection. See Tables 3a and 3b for volumes and percentages. The freeze protection should be checked during installation using the proper hydrometer to measure the specific gravity and freeze protection level of the solution.

Convenience:

Is the antifreeze available and easy to transport and install?

Codes:

Will the brine meet local and state/ provincial codes?

The following are some general observations about the types of brines presently being used:

Methanol:

Wood grain alcohol that is considered toxic in pure form. It has good heat transfer, low viscosity, is non-corrosive, and is mid to low price. The biggest down side is that it is flammable in concentrations greater than 25%.

Ethanol:

Grain alcohol, which by the ATF

(Alcohol, Tobacco, Firearms) department of the U.S. government, is required to be denatured and rendered unfit to drink. It has good heat transfer, mid to high price, is noncorrosive, non-toxic even in its pure form, and has medium viscosity. It also is flammable with concentrations greater than 25%. Note that the brand of ethanol is very important. Make sure it has been formulated for the geothermal industry. Some of the denaturants are not compatible with HDPE pipe (for example, solutions denatured with gasoline).

Antifreeze Characteristics

Selection of the antifreeze solution for closed loop systems require the consideration of many important factors, which have long-term implications on the performance and life of the equipment. Each area of concern leads to a different “best choice” of antifreeze.

is no “perfect” antifreeze.

There

Some of the factors to consider are as follows (Brine = antifreeze solution including water):

Propylene Glycol:

Non-toxic, non-corrosive, mid to high price, poor heat transfer, high viscosity when cold, and can introduce micro air bubbles when adding to the system. It has also been known to form a “slime-type” coating inside the pipe. Food grade glycol is recommended because some of the other types have certain inhibitors that react poorly with geothermal systems. A 25% brine solution is a minimum required by glycol manufacturers, so that bacteria does not start to form.

Safety: The toxicity and flammability of the brine

(especially in a pure form).

Cost:

Prices vary widely.

Ethylene Glycol:

Considered toxic and is not recommended for use in earth loop applications.

Thermal Performance:

The heat transfer and viscosity effect of the brine.

Corrosiveness:

The brine must be compatible with the system materials.

Stability:

Will the brine require periodic change out or maintenance?

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20

GS4 (POTASSIUM ACETATE):

Considered highly corrosive (especially if air is present in the system) and has a very low surface tension, which causes leaks through most mechanical fittings. This brine is not recommended for use in earth loop applications.

WT Models, Rev.: B

Section 6: Antifreeze

Figure 6: Antifreeze Specific Gravity

1.0500

1.0400

1.0300

1.0200

1.0100

1.0000

0.9900

0.9800

0.9700

0.9600

-5 0 5 10 15 20

Freeze Protection (deg F)

25 30 32

Procool Methanol Propylene Glycol

Notes:

1.

Consult with your representative or distributor if you have any questions regarding antifreeze selection or use.

2.

All antifreeze suppliers and manufacturers recommend the use of either de-ionized or distilled water with their products.

WT Models, Rev.: B

21

⚠

CAUTION

⚠

USE EXTREME CARE WHEN OPENING,

POURING, AND MIXING FLAMMABLE

ANTIFREEZE SOLUTIONS. REMOTE FLAMES

OR ELECTRICAL SPARKS CAN IGNITE

UNDILUTED ANTIFREEZES AND VAPORS.

USE ONLY IN A WELL VENTILATED AREA.

DO NOT SMOKE WHEN HANDLING

FLAMMABLE SOLUTIONS. FAILURE TO

OBSERVE SAFETY PRECAUTIONS MAY

RESULT IN FIRE, INJURY, OR DEATH. NEVER

WORK WITH 100% ALCOHOL SOLUTIONS.

Enertech Global

Section 6: Antifreeze

Antifreeze Charging

Calculate the total amount of pipe in the system and use Table 3a to calculate the amount of volume for each specific section of the system. Add the entire volume together, and multiply that volume by the proper antifreeze percentage needed (Table 3b) for the freeze protection required in your area. Then, double check calculations during installation with the proper hydrometer and specific gravity chart (Figure 6) to determine if the correct amount of antifreeze was added.

Table 3a: Pipe Fluid Volume

Type

Copper

Copper

Copper

Size

1” CTS

1.25” CTS

1.5” CTS

Volume Per 100ft

US Gallons

4.1

6.4

9.2

Type

HDPE

HDPE

HDPE

HDPE

HDPE

Additional component volumes:

Unit coaxial heat exchanger = 1 Gallon

Flush Cart = 8-10 Gallons

10’ of 1” Rubber Hose = 0.4 Gallons

Size

.75” SDR11

1” SDR11

1.25” SDR11

1.5” SDR11

2” SDR11

Volume Per 100ft

US Gallons

3.0

4.7

7.5

9.8

15.4

Table 3b: Antifreeze Percentages by Volume

Type of Antifreeze

10°F (-12.2°C)

25%

25%

38%

Minimum Temperature for Freeze Protection

ProCool (Ethanol)

Methanol

Propylene Glycol

Heat Transfer Fluid (HTF)

Antifreeze solutions are shown in pure form - not premixed

HTF is a premixed Methanol solution

15°F (-9.4°C)

22%

21%

30%

20°F (-6.7°C)

17%

16%

22%

25°F (-3.9°C)

12%

10%

15%

Mix according to manufacturer’s directions on container label

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WT Models, Rev.: B

Section 7: Desuperheater Installation

Desuperheater Installation

Units that ship with the desuperheater function must be connected to the water heater/ storage tank with the optionally offered

Desuperheater Connection Kit or (as supplied by others) shown on the following sections of this manual.

Note:

Desuperheater capacity is based on 0.4

GPM Flow per nominal ton at 90°F entering hot water temperature.

PLUMBING INSTALLATION

NOTE: All plumbing and piping connections must comply with local plumbing codes.

TIP: Measure the distance above the floor or shelf that the water heater is setting on, to where the drain valve is located. This distance must be greater than one-half the width of the tee you’re about to install, or you won’t be able to thread the tee on to the water heater.

Note:

Units that are shipped with a desuperheater do not have the desuperheater pump wires connected to the electrical circuit, to prevent accidentally running the pump while dry. Pump has to be connected to the electric circuit (master contactor) when the lines from the water heater are installed & air is removed.

CONTENTS OF THE DESUPERHEATER FITTING

KIT:

•

(1) p/n 20D052-01NN, Installation Instructions

• (1) p/n 33P211-01BN, 3/4”x 3/4”x 3/4” FPT

Brass Tee

• (1) p/n 33P210-01NN, ¾” Boiler

Drain Valve

• (1) p/n 11080005001, ¾” MPT x 3-1/2”

Brass Nipple

• (3) p/n 11080006001, ½” SWT x ¾” MPT

Copper Adaptor

• (1) p/n 11080007001, ¾” x ¾” x ½” SWT

Copper Tee

⚠

WARNING

⚠

TO AVOID SERIOUS INJURY, IT IS

RECOMMENDED THAT AN ANTI-SCALD

MIXING VALVE IS INSTALLED ON THE HOT

WATER SUPPLY LINE INTO THE HOME. EVEN

THOUGH HOT WATER TANK TEMPERATURES

COULD APPEAR TO BE SET AT LOWER

LEVELS, HIGH TEMPERATURE WATER FROM

THE DESUPERHEATER COULD RAISE TANK

TEMPERATURES TO UNSAFE LEVELS.

1. Disconnect electricity to water heater.

2. Turn off water supply to water heater.

3. Drain water heater. Open pressure relief valve.

4. Remove drain valve and fitting from water heater.

5. Thread the ¾” MPT x 3-1/2” nipple into the water heater drain port. Use Teflon tape, or pipe dope on threads.

6. Thread the center port of the ¾” brass tee to the other end of the nipple.

7. Thread one of the copper adaptors into the end of the tee closest to the heat pump.

8. Thread the drain valve into the other end of the nipple. See Figure 1.

9. Above the water heater, cut the incoming cold water line. Remove a section of that line to enable the placement of the copper tee.

10. Insert the copper tee in the cold water line.

See Figure 2.

11. Thread the remaining two ½”SWT x ¾”MPT copper adaptors into the ¾” FPT fittings on the heat pump, marked HWG IN and HWG

OUT.

12. Run interconnecting ½” copper pipe from the HOT WATER OUT on the heat pump, to the copper adaptor located on the tee at the bottom of the water heater.

13. Run interconnecting ½” copper pipe from the HOT WATER IN on the heat pump, to the copper tee in the cold water line.

WT Models, Rev.: B

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Section 7: Desuperheater Installation

14. Install an air vent fitting at the highest point of the line from step 13 (assuming it’s the higher of the two lines from the heat pump to the water heater).

15. Shut off the valve installed in the desuperheater line close to the tee in the cold water line. Open the air vent and all shut off valves installed in the “hot water hot”.

16. Turn the water supply to the water heater on. Fill water heater. Open highest hot water faucet to purge air from tank and piping.

17. Flush the interconnecting lines, and check for leaks. Make sure air vent is shoutoff when water begins to drip steadily from the vent.

18. Loosen the screw on the end of the despuerheater pump to purge the air from the pump’s rotor housing. A steady drip of water will indicate the air is removed.

Tighten the screw and the pump can be connected to the contactor or teminal block.

19. Install 3/8” closed cell insulation on the lines connecting the heat pump to the water heater.

20. Reconnect electricity to water heater.

Figure 10: Water Heater Connection Kit

Assembly for Bottom of Water Heater

NOTE: Drawing shown vertically for detail.

Fitting installs horizontally into hot water tank.

Connection to Hot

Water Tank

Copper Tee

For Domestic

Cold Water

In Line

Brass Tee

Drain

Adapter to Unit

Water Line

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WT Models, Rev.: B

Section 7: Desuperheater Installation

Figure 8: Typical Desuperheater Installation

Hot Water

Cold Water

Supply

Shutoff

Valves

Air Vent

Located at

System

High Point

Water Heater

(or Storage Tank)

Heat Pump

Drain

Valve

Shutoff

Valves

Desuperheater Out

Desuperheater In

2” Polyethylene Equipment Pad

Figure 9: Desuperheater Installation in Preheat Tank

Hot Water

Cold Water

Supply

Air Vent

Located at

System

High Point

Hot Water

Cold Water

Supply

Shutoff

Valves

Water Heater No. 2

(or Storage Tank)

Water Heater No. 1

(or Storage Tank)

Drain

Valve

Heat Pump

Drain

Valve

Shutoff

Valves

Desuperheater Out

Desuperheater In

2” Polyethylene Equipment Pad

WT Models, Rev.: B

25

Enertech Global

Section 8: Controls

MICROPROCESSOR FEATURES AND OPERATION

Enertech Global geothermal heat pump controls provide a unique modular approach for controlling heat pump operation. The control system uses one, two, or three printed circuit boards, depending upon the features of a particular unit. This approach simplifies installation and troubleshooting, and eliminates features that are not applicable for some units.

A microprocessor-based printed circuit board controls the inputs to the unit as well as outputs for status mode, faults, and diagnostics. A status LED and an LED for each fault is provided for diagnostics. solenoid valve, or a 24VAC solenoid valve with an end switch. Additional field wiring is no longer required for operation of the end switch.

Loop Pump Circuit Breakers

The loop pump(s) and desuperheater pump on single compressor units are protected by control box mounted circuit breakers for easy wiring of pumps during installation.

Dual compressor units

only

protect the desuperheater pump but

do not

protect the loop or load side pumps. All loop and load side pumps must be wired externally using relays and circuit breakers supplied by others. Circuit breakers eliminate the need to replace fuses.

Removable low voltage terminal strips provide all necessary terminals for field connections.

Not only are the thermostat inputs included, but there are also removable terminal strips for all of the accessory wiring for ease of installation and troubleshooting.

Startup/Random Start

The unit will not operate until all the inputs and safety controls are checked for normal conditions. At first power-up, the compressor is energized after a five minute delay. In addition, a zero to sixty second random start delay is added at first power-up to avoid multiple units from being energized at the same time.

Safety Controls

The control receives separate signals for high pressure, low pressure, and low water flow. Upon a continuous 30-second measurement of the fault (immediate for high pressure), compressor operation is suspended (see Fault Retry below), and the appropriate LED flashes. Once the unit is locked out (see Fault Retry below), an output

(terminal “L”) is made available to a fault LED at the thermostat (water-to-water unit has fault

LED on the corner post).

Short Cycle Protection

A built-in five minute anti-short cycle timer provides short cycle protection of the compressor.

Component Sequencing Delays

Components are sequenced and delayed for optimum space conditioning performance and to make any startup noise less noticeable.

Test Mode

The microprocessor control allows the technician to shorten most timing delays for faster diagnostics by changing the position of a jumper located on the lockout board.

Low Pressure:

If the low pressure switch is open for 30 continuous seconds, the compressor operation will be interrupted, and the control will go into fault retry mode. At startup, the low pressure switch is not monitored for 90 seconds to avoid nuisance faults.

High Pressure:

If the high pressure switch opens, the compressor operation will be interrupted, and the control will go into fault retry mode. There is no delay from the time the switch opens and the board goes into fault retry mode. There is also no delay of switch monitoring at startup.

Flow Switch: If the flow switch is open for 30 continuous seconds, the compressor operation will be interrupted, and the control will go into fault retry mode. At startup, the flow switch is not monitored for 30 seconds to avoid nuisance faults.

Water Solenoid Valve Connections

Two accessory relay outputs at the terminal strip provide a field connection for two types of water solenoid valves, a standard 24VAC

FAULT RETRY

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26

WT Models, Rev.: B

Section 8: Controls

All faults are retried twice before finally locking the unit out. The fault retry feature is designed to prevent nuisance service calls. There is an antishort cycle period between fault retries. On the third fault, the board will go into lockout mode.

Over/Under Voltage Shutdown

The lockout board protects the compressor from operating when an over/under voltage condition exists. The control monitors secondary voltage (24VAC) to determine if an over/under voltage condition is occurring on the primary side of the transformer.

For example, if the secondary voltage is

18VAC, the primary voltage for a 240V unit would be approximately 180V, which is below the minimum voltage (197V) recommended by the compressor manufacturer.

Under voltage (<18VAC) causes the compressor to disengage and restart when the voltage returns to >20VAC. Over voltage

(>31VAC) causes the compressor to disengage and restart when the voltage returns to <29VAC.

When an O/U Voltage condition occurs, the board will initiate a fault, shut down the

compressor, and start the five minute ASC period. All four fault LEDs will flash (HP + LP

+ FS + CO) and the thermostat “Call For

Service” indicator will be illuminated. This feature is self-resetting. If voltage returns to normal range normal operation will resume if/when the ASC period is over (except if in lockout mode). If voltage is still out of range at the end of the ASC period the control will execute a Fault Retry. On the third fault within 30 minutes, the board will go into lockout mode and illuminate the “Call For

Service” indicator. When normal operation

is restored the four fault LED’s will stop flash

ing and the “Call For Service” indicator will turn off.

Intelligent Reset

If the thermostat is powered off and back on (soft reset), the board will reset, but the last fault will be stored in memory for ease of troubleshooting. If power is interrupted to the board, the fault memory will be cleared.

Diagnostics

The lockout board includes five LEDs (status, high pressure, low pressure, low water flow, condensate overflow) for fast and simple control board diagnosis. Below is a table showing LED function.

Table 4a: LED Identification

LED Color

Green

Orange

Red

Yellow

Green

Location

Top

2nd

3rd

1

Function

High Pressure

Low Pressure

Water Flow

Normal Operation

OFF

OFF

OFF

Fault Retry

2

Flashing

3

Flashing

3

Flashing

3

Status

Not applicable on water-to-water units

Flashing

4

Flashing

5

Bottom

Notes:

1. Looking at the board when the LEDs are on the right hand side

2. If all five lights are flashing, the fault is over/under voltage

3. Only the light associated with the particular fault/lockout will be on or flashing.

For example, if a high pressure lockout has occurred, the top green light will be on.

The orange, red, and yellow lights will be off

4. Status lights will be off when in test mode

5. Flashes alternately with the fault LED

Lockout

2

ON

3

ON

3

ON

3

Flashing

4

WT Models, Rev.: B

27

Enertech Global

Section 8: Controls

Hot Water Pump Control

Controls for high water temperature and low compressor discharge line temperature prevent the hot water (desuperheater) pump from operating when the leaving water temperature is above 130°F, or when the compressor discharge line is too cool to provide adequate water heating.

include power company transformer selection, insufficient entrance wire sizing, defective breaker panel, incorrect transformer tap (unit control box), or other power-related issues.

Figure 10a: Lockout Board Layout

CCG

Lockout Board Jumper Selection

The lockout board includes three jumpers for field selection of various board features.

Water Solenoid Valve Delay (WSD):

When the WSD jumper is installed, the “A” terminal is energized when the compressor is energized.

When the jumper is removed, the “A” terminal is energized 10 seconds after the compressor.

If using the Taco water solenoid valve (or a valve with an end switch), the unit terminal strip includes a means for connecting a valve of this type. The WSD jumper should be installed.

If using a fast opening valve without an end switch, the jumper should be removed.

CC

R

Y

A

C

L

O

WSD

TEST

O/V

Lockout

Board

R2 R1 C2 C1

HP

HP

LP

LP

FS

FS

CO

CO

Status

SEQUENCE OF OPERATION:

Water-to-Water Units, Single Compressor

Test Mode (TEST):

When the TEST jumper is installed, the board operates in the normal mode.

When the jumper is removed, the board operates in test mode, which speeds up all delays for easier troubleshooting. When service is complete, the jumper must be re-installed in order to make sure that the unit operates with normal sequencing delays. While test jumper is removed, the status

(bottom green light) will remain off.

Over/Under Voltage Disable (O/V):

When the

O/V jumper is installed, the over/under voltage feature is active. When the jumper is removed, the over/under voltage feature is disabled. On rare occasions, variations in voltage will be outside the range of the over/under voltage feature, which may require removal of the jumper. However, removal of the jumper could cause the unit to run under adverse conditions, and therefore should not be removed without contacting technical services. An over/under voltage condition could cause premature component failure or damage to the unit controls. Any condition that would cause this fault must be thoroughly investigated before taking any action regarding the jumper removal.

Likely causes of an over/under voltage condition

Heating (Y1)

Water-to-Water Units, Single Compressor

Heating first stage (Y1)

The compressor (first stage) and loop/ desuperheater pump(s) are energized 10 seconds after the “Y1” input is received.

Heating second stage (Y1, Y2)

The compressor solenoid is energized immediately upon receiving a “Y2” input, switching the compressor to full load.

Cooling Operation

The reversing valve is energized for cooling operation. Terminal “O” is connected to the reversing valve solenoid.

Cooling first stage (Y1, O)

The compressor (first stage) and loop/ desuperheater pump(s) are energized 10 seconds after the “Y1” input is received.

Cooling second stage (Y1, Y2, O)

The compressor solenoid is energized immediately upon receiving a “Y2” input, switching the compressor to full load.

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WT Models, Rev.: B

Section 8: Controls

SEQUENCE OF OPERATION:

Water-to-Water Units, Dual Two-Stage

Compressors (WT092 Only)

Heating first stage (Y1)

Compressor A is energized in first stage 10 seconds after the “Y1” input is received.

Compressor B is energized in first stage 10 seconds after Compressor A.

Heating second stage (Y1, Y2)

Both compressor solenoids are energized immediately upon receiving a “Y2” input, switching the compressors to full load.

Cooling Operation

The reversing valve is energized for cooling operation. Terminal “O” is connected to the reversing valve solenoid.

Cooling first stage (Y1, O)

Compressor A is energized in first stage 10 seconds after the “Y1” input is received.

Compressor B is energized in first stage 10 seconds after Compressor A.

Cooling second stage (Y1, Y2, O)

Both compressor solenoids are energized immediately upon receiving a “Y2” input, switching the compressors to full load.

SEQUENCE OF OPERATION:

Water-to-Water Units, Dual Single Stage

Compressors (WT120 & WT144 Only)

Heating first stage (Y1)

Compressor A is energized 10 seconds after the “Y1” input is received.

Heating second stage (Y1, Y2)

Compressor B is energized 10 seconds after the “Y2” input is received. Compressor A remains energized.

Cooling Operation

The reversing valve is energized for cooling operation. Terminal “O” is connected to the reversing valve solenoid.

Cooling first stage (Y1, O)

Compressor A is energized 10 seconds after the “Y1” input is received.

Cooling second stage (Y1, Y2, O)

Compressor B is energized 10 seconds after the “Y2” input is received. Compressor A remains energized.

WT Models, Rev.: B

29

Enertech Global

MPH Series

Section 8: Controls/Hydronic Air Handler

HYDRONIC AIR HANDLER:

ECM fan/hydronic chilled water/hot water coil

Thermostat Wiring / Fan Speed Notes

For two-stage thermostats, use both Y1 and Y2.

For single stage thermostats, jumper Y1 and Y2, and use the “CFM Y2” column in table 6b for determining jumper location. The ECM control board in the air handler is the thermostat connection point. Wire nut the thermostat wiring to the leads connected to the 1/4” spades on the ECM board.

dehumidification is needed, or if the HUM terminal is not connected (and the resistor is cut), the air handler will operate at a lower fan speed in cooling and normal fan speed in heating.

Figure 10b: ECM Board (Air Handler Board)

CUT TO ENABLE

DEHUMIDIFY

For dehumidification in cooling, cut the resistor at the “DEHUMIDIFY” LED. Use either the HUM terminal (reverse logic -- designed to be used with a humidistat) to lower the fan speed when

D

C

B

A

D

C

B

A

TEST

(-)

(+)

NORM

CFM

COOL HEAT ADJUST

ECM Control Board

(MPD series)

Low Voltage

Connection to ECM Motor

Table 4b: MPH Air Handler Fan Speeds

Model Number

WT036 with MPH024A

Change to:

COOL Jumper B

HEAT Jumper B

ADJUST Jumper Norm

WT036 with MPH036A

Ships Set On:

COOL Jumper C

HEAT Jumper C

ADJUST Jumper Norm

WT048 with MPH060B

Change to:

COOL Jumper C

HEAT Jumper C

ADJUST Jumper Norm

WT060 with MPH060B

Ships Set On:

COOL Jumper B

HEAT Jumper B

ADJUST Jumper Norm

COOL

Jumper

+

Norm

Norm

Norm

Norm

+

+

+

Norm

Norm

Norm

Norm

+

+

+

+

Norm

Norm

Norm

Norm

+

+

+

D

A

B

C

B

C

D

A

C

D

A

B

A

B

C

D

A

B

C

B

C

D

A

D

A

B

C

B

C

D

A

C

D

A

B

A

B

C

D

A

B

C

B

C

D

A

D

HEAT

Jumper

D

ADJUST

Jumper

+

1317

2180

2015

1710

1567

2243

2232

1937

930

1556

1547

1312

1150

1556

1547

1528

870

870

930

930

930

.40”

High SPD CFM Y2

.60” .80”

930

930

930

920

920

890

860

840

930

930

930

820

810

920

900

890

1317

2170

2015

1701

1567

2170

2170

1921

930

1556

1547

1308

1145

1556

1547

1520

1317

2116

2004

1693

1546

2116

2105

1914

890

1508

1518

1308

1139

1508

1518

1486

1809 1795 1752 1493 1488 1467

1024

1810

1678

1407

1318

1885

1897

1612

800

1448

1239

1012

880

1566

1428

1156

710

700

930

880

810

.40”

Low SPD CFM Y1

.60” .80”

830

770

820

750

810

730

700

680

930

860

800

670

650

920

830

760

1020

1810

1678

1407

1304

1860

1873

1612

780

1448

1239

1006

873

1566

1428

1156

1006

1784

1664

1396

1274

1823

1848

1603

750

1428

1227

1006

865

1518

1428

1156

G

Y1

Y2

O

W1

EM

C1

R

HUM

N/A

619

493

377

370

502

407

302

330

460

420

380

.80”

410

360

330

302

1137

1045

905

962

1253

1191

981

345

1137

1087

934

989

1271

1203

1017

288

633

529

404

390

539

433

349

FAN G

.60”

410

370

350

340

460

430

400

322

674

558

450

400

567

476

396

350

470

440

410

.40”

420

380

360

395

1157

1087

953

911

1289

1215

1032

1003 978 945

NOTES:

1. Dehumidification mode can be enabled by cutting the jumper on the ECM board. When cut, cooling CFM is reduced by 15%, and heating/auxiliary heat CFM remains unchanged. Example: Model 036 with HEAT and COOL jumpers on C setting and ADJUST jumper on Norm setting would run at 1115 CFM with jumper cut, instead of 1308 CFM with jumper intact.

1. Gray shaded areas are recommended settings. Other settings may be used, depending upon application. DO NOT cut dehumidification jumper if CFM setting will cause airflow to be below 250 CFM per ton on first stage, and below 325 CFM per ton on second stage. Example: Model 036 should not run below 750 CFM in first stage, or below 975 CFM in second stage.

2. The COOL and HEAT jumpers should both be set at the same position. COOL controls heating and cooling airflow; HEAT controls electric heat airflow.

3. Above CFM will be maintained up to 0.50” ESP for models MPH024 and 036, and up to 0.75” ESP for models MPH048 and 60.

Enertech Global

30

WT Models, Rev.: B

Section 8: Controls

Water-to-Water Unit, Two-Stage, Single Compressor Wiring Diagram

2 STAGE AQUASTAT

R1 Y1 Y2

Note: On units lower than 8 tons, load side pumping is handled via connection to the loop pump terminals (i.e. the loop and load pumps can be powered from the unit as long as no more than three UP26-116 pumps are connected total (loop and load side).

WT Models, Rev.: B

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Enertech Global

Section 8: Controls

Water-to-Water Unit, Two-Stage, Dual Two-Stage Compressor Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

Enertech Global

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WT Models, Rev.: B

Section 8: Controls

Water-to-Water Unit, Two-Stage, Dual Single Stage Compressor Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

WT Models, Rev.: B

33

Enertech Global

Section 8: Controls

Water-to-Water Unit, Single, Two Stage Compressor, Three Phase, 460V,

60 HZ Wiring Diagram

2 STAGE AQUASTAT

R1 Y1 Y2

Enertech Global

34

WT Models, Rev.: B

Section 8: Controls Section 8: Controls

Water-to-Water Unit, Two-Stage or Single Stage Compressor, Three Phase , 60HZ Wiring Diagram

WT Models, Rev.: B

35

Enertech Global

Section 8: Controls

Water-to-Water Unit, Dual Two Stage Compressors, Three Phase, 60 HZ Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

Enertech Global

36

WT Models, Rev.: B

Water-to-Water Unit, Dual Two Stage Compressors, Three Phase, 60 HZ Wiring Diagram

Section 8: Controls

Water-to-Water Unit, Dual Single Stage Compressors, Three Phase , 60HZ Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

WT Models, Rev.: B

37

Enertech Global

Section 8: Controls

Water-to-Water Unit, Dual Two-Stage Compressors, Three Phase , 460V, 60HZ Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

Enertech Global

38

WT Models, Rev.: B

Section 8: Controls

Water-to-Water Unit, Dual Single Stage Compressors, Three Phase, 460V, 60 HZ Wiring Diagram

Note: Units 8 tons and larger are considered

“commercial” size units and all pumping is handled from a separate electrical circuit outside of the unit

WT Models, Rev.: B

39

Enertech Global

EQUIPMENT START-UP FORM

Customer Name:_________________________________________________________________

Customer Address:_____________________________________________________________________________________

Model #:__________________________________________ Serial #:____________________________________________

Dealer Name:__________________________________________________________________________________________

Distributor Name:_____________________________________________ Start-up Date:____________________________

Loop Type: Open Closed

(Circle One)

Flow Rate Cooling

Source Water Pressure In

Source Water Pressure Out

Source Water Pressure Drop

Flow Rate

*Check pressure drop chart for GPM

PSI

PSI

PSI

GPM

Heating

PSI

PSI

PSI

GPM

Unit Electrical Data

Line Voltage

Total Unit Amps

Compressor Amps

Wire Size

Circuit Breaker Size

Cooling Heating

V

A

A

GA

A

A

A

Source Water Temp. Difference

Source Water Temperature In

Source Water Temperature Out

Source Water Temperature Difference

Cooling

ºF

ºF

ºF

Heating

ºF

ºF

ºF

Heat of Rejection/Extraction

Heat of Rejection

Heat Of Extraction

Cooling

BTU/HR

Heating

BTU/HR

Heat of Extraction/Rejection = GPM X Water Temp. Difference X 500 (Water - Open Loop)

Heat of Extraction/Rejection = GPM X Water Temp. Difference X 485 (Water & Antifreeze - Closed Loop)

Load Water Temp. Difference

Load Water Temperature In

Load Water Temperature Out

Load Water Temperature Difference

Air Temperature Difference

Cooling

Cooling

ºF

ºF

ºF

Supply Air Temperature

Return Air Temperature

ºF

ºF

Air Temp. Difference ºF

*Confirm auxiliary heaters are de-energized for the above readings.

Heating

ºF

ºF

ºF

Heating

ºF

ºF

ºF

Auxiliary Heat Operation Only

Supply Air Temperature

Return Air Temperature

Air Temp. Difference

Auxiliary Heat Electrical Data

Line Voltage

Total Amperage (Full kW - All Stages)

Wire Size

Breaker Size

CFM = (Watts X 3.413) ÷ (Air Temp. Difference X 1.08)

Watts = Volts X Auxiliary Heater Amps

Heating

Heating

ºF

ºF

ºF

V

A

GA

A

Installer/Technician:____________________________________________ Date:________________________

Equipment Start-Up Process

Check the following before power is applied to the equipment

Caution: Do not start-up the unit until the new structure is ready to be occupied

Electrical:

…

Geothermal unit high voltage wiring is installed correctly

…

Geothermal unit high voltage wiring and breaker are the correct size

…

Auxiliary electric heaters are wired and installed correctly

…

Circulating pumps are wired and fused (if necessary) correctly

…

Desuperheater pump is NOT wired, unless piping is complete and all air is purged

…

Low voltage wiring is correct and completely installed

Plumbing:

…

Pipe and pump sizes are correct

…

Air is purged from all lines

…

Antifreeze is installed

…

All valves are open, including those on the flow center

…

Condensate is trapped and piped to the drain

Ductwork:

…

Filter is installed and clean

…

Packaging is removed from the blower assembly

…

Blower turns freely

…

Canvas connections installed on supply plenum & return drop

Equipment Start-Up

1.

Energize geothermal unit with high voltage.

2.

Set the thermostat to “Heat” or

“Cool.” Adjust set point to energize the unit. System will energize after delays expire

(typically a five minute delay).

3.

Check water flow with a flow meter (non-pressurized) or pressure drop conversion

(pressurized). Pressure drop tables must be used to convert the pressure drop to GPM. The pressure drop can be obtained by checking water pressure in and water pressure out at the P/T ports.

4.

Check the geothermal unit’s electrical readings listed in the

Unit Electrical Data table.

5.

Check the source water temperature in and out at the P/T ports (use insertion probe). Allow

10 minutes of operation before recording temperature drop.

6.

Calculate the heat of extraction or heat of rejection.

7.

Check the temperature difference of the load coax (water-to-water) or air coil (water-to-air). P/T ports are recommended for use on the load side, but the line temperatures can be used to check the temperature difference.

8.

Change the mode of the thermostat and adjust the set point to energize the unit. Check the data in opposite mode as the previous tests. Amp draws as well as temperature differences and flow rate should be recorded.

9.

Check auxiliary heat operation by adjusting the thermostat set point

5°F above the room temperature in “Heat” mode or set thermostat to “Emergency." Record voltage, amperage, and air temperature difference.

Section 10: Troubleshooting

PERFORMANCE CHECK:

Heat of Extraction(HE)/Rejection(HR)

Record information on the Unit Start-up Form

Equipment should be in operation for a minimum of 10 minutes in either mode –

WITH

THE HOT WATER GENERATOR TURNED OFF.

1. Determine flow rate in gallons per minute

a. Check entering water temperature

b. Check entering water pressure

c. Check leaving water pressure

Once this information is recorded, find corresponding entering water temperature column in Specification Manual for unit.

Find pressure differential in PSI column in Spec

Manual. Then read the GPM column in Spec

Manual to determine flow in GPM.

2.

Check leaving water temperature of unit.

FORMULA: GPM x water temp diff, x 485

(antifreeze) or 500 (fresh water) = HE or HR in

BTU/HR

A 10% variance from Spec Manual is allowed.

Always use the same pressure gauge & temperature measuring device.

Water flow must be in range of Specification

Manual. If system has too much water flow, performance problems should be expected

Enertech Global

42

WT Models, Rev.: B

Section 10: Troubleshooting

A: UNIT WILL NOT START IN EITHER CYCLE

Thermostat

Loose or broken wires

Blown Fuse/

Tripped Circuit Breakers

Low Voltage Circuit

Water Flow (runs for 30 sec)

Set thermostat on heating and highest temperature setting. Unit should run. Set thermostat on cooling and lowest temperature setting. Unit should run. Set fan to On position. Fan should run. If unit does not run in any position, disconnect wires at heat pump terminal block and jump R, G, Y. Unit should run in heating. If unit runs, replace thermostat with correct thermostat only.

Tighten or replace wires.

Check fuse size, replace fuse or reset circuit breaker.

Check low voltage circuit breaker.

Check 24 volt transformer. If burned out or less than 24 volt, replace. Before replacing, verify tap setting and correct if necessary.

If water flow is low (less than 3.5 GPM), unit will not start. Make sure Pump Module or solenoid valve is connected (see wiring diagram). Water has to flow through the heat exchanger in the right direction (see labels at water fitting connections) before the compressor can start. If water flow is at normal flow, use an ohmmeter to check if you get continuity at the flow switch. If no switch is open and flow is a normal flow, remove switch and check for stuck particles or bad switch.

B: UNIT RUNNING NORMAL, BUT SPACE TEMPERATURE IS UNSTABLE

Thermostat

Thermostat is getting a draft of cold or warm air. Make sure that the wall or hole used to run thermostat wire from the ceiling or basement is sealed, so no draft can come to the thermostat.

Faulty Thermostat (Replace).

C: NO WATER FLOW

Pump Module

Solenoid valve

Make sure Pump Module is connected to the control box relay (check all electrical connections). For nonpressurized systems, check water level in Pump Module. If full of water, check pump. Close valve on the pump flanges and loosen pump. Take off pump and see if there is an obstruction in the pump. If pump is defective, replace. For pressurized systems, check loop pressure. Repressurize if necessary. May require re-flushing if there is air in the loop.

Make sure solenoid valve is connected. Check solenoid. If defective, replace.

D: IN HEATING OR COOLING MODE, UNIT OUTPUT IS LOW

Water

Load Side Flow

Refrigerant charge

Reversing valve

Water flow & temperature insufficient.

Check speed setting, check nameplate or data manual for proper speed, and correct speed setting.

Check for dirty air filter—Clean or replace.

Restricted or leaky ductwork. Repair.

Refrigerant charge low, causing inefficient operation. Make adjustments only after airflow and water flow are checked.

Defective reversing valve can create bypass of refrigerant to suction side of compressor. Switch reversing valve to heating and cooling mode rapidly. If problem is not resolved, replace valve. Wrap the valve with a wet cloth and direct the heat away from the valve. Excessive heat can damage the valve. Always use dry nitrogen when brazing. Replace filter/drier any time the circuit is opened.

E: IN HEATING OR COOLING MODE, UNIT OUTPUT IS LOW

Heat pump will not cool but will heat. Heat pump will not heat but will cool.

Water heat exchanger

System undersized

Reversing valve does not shift. Check reversing valve wiring. If wired wrong, correct wiring. If reversing valve is stuck, replace valve. Wrap the valve with a wet cloth and direct the heat away from the valve.

Excessive heat can damage the valve. Always use dry nitrogen when brazing. Replace filter/drier any time the circuit is opened.

Check for high-pressure drop, or low temperature drop across the coil. It could be scaled. If scaled, clean with condenser coil cleaner.

Recalculate conditioning load.

F: WATER HEAT EXCHANGER FREEZES IN HEATING MODE

Water flow

Flow Switch

Low water flow. Increase flow. See F. No water flow.

Check switch. If defective, replace.

G: EXCESSIVE HEAD PRESSURE IN COOLING MODE

Inadequate water flow Low water flow, increase flow.

WT Models, Rev.: B

43

Enertech Global

Section 10: Troubleshooting

H: EXCESSIVE HEAD PRESSURE IN HEATING MODE

Load Side Flow See E: Noisy blower and low air flow.

I: WATER DRIPPING FROM UNIT

Unit not level

Condensation drain line plugged

Water sucking off the air coil in cooling mode

Level unit.

Unplug condensation line.

Too much airflow. Duct work not completely installed. If duct work is not completely installed, finish duct work. Check static pressure and compare with air flow chart in spec manual under specific models section.

If ductwork is completely installed it may be necessary to reduce CFM.

Water sucking out of the drain pan

Install an EZ-Trap or P-Trap on the drain outlet so blower cannot suck air back through the drain outlet.

Enertech Global

44

WT Models, Rev.: B

Section 10: Troubleshooting

J: COMPRESSOR WON’T START

Check for proper compressor nameplate voltage.

OK

Attempt to restart the compressor

OK

OK

No

Does Compressor draw current when voltage is applied.

Yes

Check voltage supply

& contactor operation.

OK

Are the suction & discharge pressures balanced.

No

Check motor resistance.

(See Note B)

Yes

No

Check the wiring, capacitor & contactor operation. (See Note A)

Allow time for compressor to balance.

OK

Allow to start the compressor while measuring voltage on the load side of the contactor.

Is the compressor hot?

Yes

Allow time for the protector to reset.

Yes

Recheck Resistance

Voltage supply is too low.

Compressor

Connection Block

C

S

R

No

OK

Is the voltage 197 or higher when the compressor is trying to start.

Yes

If the compressor fails to start after

3 attempts, replace the compressor.

Replace Compressor

Single Phase 208-230

C = Line Winding

R = Run Winding

S = Start Winding

A: Check all terminals, wires & connections for loose or burned wires and connections. Check contactor and 24 Volt coil. Check capacitor connections & check capacitor with capacitor tester.

B: If ohm meter reads 0 (short) resistance from C to S, S to R, R to C or from anyone of one of these terminals to ground (shorted to ground), compressor is bad.

K: COMPRESSOR WON’T PUMP CHART

Is the c om pre ssor run ning?

N o

R efer to th e com pressor w on 't start flow chart.

Y es

M ea sure & record the am p s, volts, suction & discharge pressure.

O K

D oe s the un it h ave a refrigera nt c harge?

N o

A dd re frigerant to the system .

If the com p ressor still w o n't pum p rep lace com pre ssor.

Y es

S hut the unit d ow n & re verse the ph asing

(3-Phase O nly)

O K

C heck & verify th e run ca pacitor

O K

O K

C heck th e opera tion of the reversing va lve.

WT Models, Rev.: B

45

Enertech Global

Section 10: Troubleshooting

Table 6: Refrigeration Troubleshooting

System Faults

Under Charge

Over Charge

Low Air Flow

Low Source

Water Flow

Low Load

Water Flow

Restricted TXV

TXV Stuck Open

Inadequate

Compression

Mode

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Low

High

High

Low

High

High

Discharge

Pressure

Low

Low

High

High

High

Low

Low

Low

Low

Low

Suction

Pressure

Low

Low

High/Normal

High/Normal

High/Normal

Low/Normal

Low/Normal

High/Normal

High/Normal

Low/Normal

Low

Low

High/Normal

High/Normal

High

High

Superheat

High

High

Normal

Normal

Normal

Low

Low

Normal

Normal

Low

High

High

Low

Low

High/Normal

High/Normal

Subcooling

Low

Low

High

High

High/Normal

Normal

Normal

High/Normal

High/Normal

Normal

High

High

Low

Low

Low/Normal

Low/Normal

High

High

High

High

Low

Low

Air TD Water TD Compressor

Low Low Low

Low Low Low

High

Normal

High

High

Normal

High

Low

Low

High

High

High

High/Normal

Low

Low

Low

Low

Low

Low

High/Normal

High

High

High/Normal

Low

Low

Low

Low

Low

Low

Low

Low

Low

Low

High

High

Low

Low

Superheat/Subcooling Conditions

Superheat Subcooling

Normal

Normal

High

High

Low

Normal

High

Low

High

Low

Condition

Normal operation

Overcharged

Undercharged

Restriction or TXV is stuck almost closed

TXV is stuck open

Enertech Global

46

WT Models, Rev.: B

Section 10: Troubleshooting

Table 4: Typical R-410A Unit Superheat/Subcooling Values

Source

EWT

°F

Source

Flow

Load

Flow

GPM/Ton GPM/Ton

30

50

70

90

1.5

3.0

1.5

3.0

1.5

3.0

1.5

3.0

3.0

3.0

3.0

3.0

Load

EWT

110

85

95

110

85

95

110

85

95

110

85

95

°F

85

95

110

110

85

95

110

85

95

110

85

95

417-463

344-390

394-442

474-525

315-357

361-405

434-480

356-403

408-457

490-543

326-369

374-418

450-496

Full Load Heating-No Hot Water Generation

Discharge Suction Subcooling

PSIG PSIG °F

Superheat

°F

Source Water

Temp Drop

°F

318-363 49-84 11-26 6-14 7-11

365-411

438-488

291-332

51-86

53-89

56-89

10-25

8-24

6-20

5-13

4-13

7-13

7-11

5-10

3-8

334-377

402-447

330-376

378-426

455-506

302-344

346-390

58-92

60-95

77-110

79-114

82-117

86-118

89-122

5-20

3-18

12-28

11-27

9-26

7-22

6-21

5-12

4-12

6-13

4-12

4-12

9-14

7-13

3-8

2-7

11-15

10-15

9-13

5-10

5-10

92-125

106-141

109-145

113-150

118-151

122-156

125-161

134-172

138-178

142-183

149-185

154-191

158-197

4-20

13-29

12-27

11-27

8-23

7-22

5-21

15-29

13-27

12-27

9-24

8-22

6-21

7-13

6-15

5-14

4-15

11-18

10-17

10-18

9-18

7-17

7-18

16-23

15-22

14-23

4-9

15-20

14-19

13-17

8-13

7-13

6-12

19-24

19-23

17-21

10-16

9-15

8-12

11-15

10-15

10-14

11-17

11-17

11-15

6-12

8-13

8-12

8-12

9-15

9-15

9-14

Load Water

Temp Rise

°F

4-9

4-9

4-8

5-10

5-10

4-10

6-10

6-10

6-10

7-12

7-12

Source

EWT

°F

Source

Flow

Load

Flow

GPM/Ton GPM/Ton

1.5

50 3.0

3.0

70

90

110

1.5

3.0

1.5

3.0

1.5

3.0

3.0

3.0

3.0

WT Models, Rev.: B

Load

EWT

50

40

45

50

50

40

45

45

50

40

45

°F

40

45

50

40

40

45

50

40

40

45

50

45

50

Full Load Cooling-No Hot Water Generation

Discharge Suction Subcooling

PSIG PSIG °F

Superheat

°F

Source Water

Temp Rise

°F

193-252

193-252

58-94

65-100

12-28

12-28

5-16

5-15

13-19

14-20

193-252

176-231

176-231

176-231

266-312

71-107

66-100

73-107

80-114

62-96

12-28

8-23

7-23

7-23

14-26

5-15

6-15

7-16

7-16

4-14

15-22

6-11

6-12

7-13

13-19

266-312

266-312

243-286

243-286

243-286

346-393

349-396

68-102

75-109

69-103

77-109

84-117

64-98

71-104

13-26

13-26

8-21

8-20

8-20

12-27

12-28

4-14

4-14

6-14

7-14

7-14

4-13

5-13

14-20

15-21

6-11

6-12

7-12

13-19

14-20

352-399

316-359

319-362

322-366

444-495

448-500

452-504

407-453

411-457

415-461

78-111

72-104

80-111

87-119

67-102

74-109

82-116

75-109

83-116

91-124

12-28

7-22

7-22

7-23

9-25

10-26

10-26

4-20

4-20

4-21

3-12

3-12

5-12

5-13

6-13

5-13

6-13

7-13

7-14

3-12

15-21

6-11

6-11

7-12

13-19

13-20

14-21

6-11

6-11

6-12

47

Enertech Global

Load Water

Temp Drop

°F

4-9

4-9

5-10

5-10

5-10

6-11

4-9

4-9

5-10

4-9

5-10

5-10

3-8

4-8

3-8

3-8

3-8

3-8

4-9

4-9

4-9

4-9

5-10

3-7

Section 10: Forms - Troubleshooting

Customer/Job Name:____________________________________________ Date:________________________________

Model #:__________________________________________ Serial #:____________________________________________

Antifreeze Type:____________________________________

HE or HR = GPM x TD x Fluid Factor

(Use 500 for water; 485 for antifreeze)

°F

GPM

Load IN psi

°F

Liquid line (heating)

To suction line bulb

To suction line

Filter Drier

TXV

Load

Coax

For water-to-water units substitute a second coaxial heat exchanger for the air coil.

°F

Load OUT psi

Reversing

Valve

psi

Suction Line

°F

(saturation)

°F

Suction temp psi

Discharge Line

°F

(saturation)

Heating

Mode

Optional desuperheater installed in discharge line

(always disconnect during troubleshooting)

Cooling

Mode

°F psi

Source (loop) IN

GPM

Source

Coax

Discharge

Discharge

Diagram A: Water-to-Water Unit (Cooling Mode)

°F psi

Source (loop) OUT

°F

Load IN psi

GPM

°F

Liquid line (heating)

To suction line bulb

°F

Liquid line (cooling)

To suction line

Filter Drier

TXV

Load

Coax

For water-to-water units substitute a second coaxial heat exchanger for the air coil.

°F

Load OUT psi

Reversing

Valve

psi

Suction Line

°F

(saturation)

°F

Suction temp psi

Discharge Line

°F

(saturation)

Heating

Mode

Optional desuperheater installed in discharge line

(always disconnect during troubleshooting)

Cooling

Mode

°F psi

Source (loop) IN

GPM

Source

Coax

Discharge

Discharge

Diagram B: Water-to-Water Unit (Heating Mode)

Enertech Global

48

°F psi

Source (loop) OUT

WT Models, Rev.: B

Model

WT036

WT048

WT060

WT092

WT120

WT144

Voltage

Code/ HWG

Option

00

01

10

11

20

21

30/35

01

10

11

20

21

30/35

20

21

30/35

00

01

10

11

20

21

30/35

00

00

01

10

11

20

21

30/35

00

01

10

11

20

21

30/35

60 Hz Power

Volts

208/230

208/230

208/230

208/230

208/230

208/230

460

208/230

208/230

208/230

208/230

208/230

208/230

460

208/230

208/230

208/230

208/230

208/230

208/230

460

208/230

208/230

460

208/230

208/230

208/230

208/230

208/230

208/230

460

208/230

208/230

208/230

208/230

208/230

208/230

460

Phase

3

3

1

3

1

1

1

3

3

3

1

3

1

1

3

3

3

3

3

1

1

1

1

1

1

1

1

1

3

3

3

3

3

1

3

1

1

1

Compressor

LRA RLA

152.9

152.9

152.9

152.9

110.0

110.0

52.0

104.0

104.0

104.0

104.0

83.1

83.1

41.0

179.2

179.2

179.2

179.2

136.0

136.0

66.1

152.9 ea. 27.1 ea.

29.7

29.7

29.7

29.7

17.6

17.6

8.5

152.9 ea. 27.1 ea.

152.9 ea. 27.1 ea.

152.9 ea. 27.1 ea.

110.0 ea. 16.5 ea.

110.0 ea. 16.5 ea.

52.0 ea. 7.2 ea.

178.0 ea. 28.3 ea.

178.0 ea. 28.3 ea.

178.0 ea. 28.3 ea.

178.0 ea. 28.3 ea.

136.0 ea. 19.2 ea.

136.0 ea. 19.2 ea.

66.1 ea. 8.7 ea.

149.0 ea. 22.4 ea.

149.0 ea. 22.4 ea.

75.0 ea. 10.6 ea.

27.1

27.1

27.1

27.1

16.5

16.5

7.2

21.2

21.2

21.2

21.2

14.0

14.0

6.4

HWG

Pump

FLA

63.7

64.2

63.7

64.2

43.2

43.7

19.6

61.5

61.0

61.5

37.1

37.6

16.2

50.4

50.9

23.9

37.1

37.6

42.6

43.1

22.0

22.5

10.6

61.0

33.9

34.4

39.4

39.9

20.6

21.1

9.0

26.5

27.0

30.5

31.0

17.5

18.0

8.0

56.6

57.1

56.6

57.1

38.4

38.9

17.4

54.7

54.2

54.7

33.0

33.5

14.4

44.8

45.3

21.2

29.7

30.2

35.2

35.7

17.6

18.1

8.5

54.2

27.1

27.6

32.6

33.1

16.5

17.0

7.2

21.2

21.7

25.2

25.7

14.0

14.5

6.4

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

5.5

5.5

0.0

0.0

0.0

0.0

0.0

0.0

5.5

5.5

0.0

0.0

0.0

Ext.

Loop

Pump

FLA

0.0

0.0

4.0

4.0

0.0

0.0

0.0

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.0

0.5

0.0

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.0

0.0

0.5

0.0

0.5

0.0

0.5

0.0

0.0

0.5

0.0

0.5

0.0

0.5

0.0

Total

Unit FLA

Min

Circuit

AMPS

Max

Fuse

HACR

Min

AWG

Max Ft

Notes:

1. All line and low voltage wiring must adhere to the National Electrical Code and Local Codes, whichever is the most stringent.

2. Wire length based on a one way measurement with a 2% voltage drop.

3. Wire size based on 60°C copper conductor and minimum circuit ampacity.

4. All fuses class RK-5

* The external loop pump FLA is based on a maximum of three UP26-116F-230V pumps (1/2hp) for 048 - 060 and two pumps for 034

Proper Power Supply Evaluation:

When any compressor bearing unit is connected to a weak power supply, starting current will generate a significant “sag” in the voltage reducing the starting torque of the compressor motor increasing the start time. This will influence the rest of the electrical system in the building by lowering the voltage to the lights. This momentary low voltage causes “light dimming”. The total electrical system should be evaluated by an electrician and HVAC technician. The evaluation should include connections, sizes of wires, and size of the distribution panel between the unit and the utility’s connection. The transformer connection and sizing should be evaluated by the electric utility provider.

90

60

60

25

90

90

90

70

70

30

80

80

80

50

50

20

40

40

14

60

60

70

70

80

60

60

60

60

35

35

15

50

30

30

10

45

45

50

4

6

6

14

4

4

4

6

6

12

4

8

4

4

8

14

12

12

14

6

6

8

8

4

8

8

8

8

12

12

14

8

14

14

14

10

10

8

113

112

113

112

106

104

37

117

119

117

77

76

44

91

90

47

86

84

115

114

56

55

75

119

94

92

78

77

60

58

89

78

76

101

99

46

44

100

⚠

CAUTION

⚠

CHECK COMPRESSOR AMP DRAW TO VERIFY COMPRESSOR ROTATION ON THREE PHASE UNITS. COMPARE AGAINST

UNIT ELECTRICAL TABLES. REVERSE ROTATION RESULTS IN HIGHER SOUND LEVELS, LOWER AMP DRAW, AND INCREASED

COMPRESSOR WEAR. THE COMPRESSOR INTERNAL OVERLOAD WILL TRIP AFTER A SHORT PERIOD OF OPERATION.

WT Models, Rev.: B

49

Enertech Global

Section 11: Hydronic Air Handler Unit Electrical Data

Model

60 HZ

Power

Single

Phase

Volts

Motor

Amps /

HP

# of

Circuits kW

Electric Heater Data

Amps

115V

Amps

208V

Amps

208V

Cr 1 Cr 1 Cr 2

-

Amps

240V

Cr 1

-

Amps

240V

Cr 2

-

MCA

115V

Cr 1

Minimum Circuit Ampacity

MCA

208V

MCA

208V

MCA

240V

Cr 1 Cr 2 Cr 1

MCA

240V

Cr 2

3.5

3.5

-

024

036

048-060

208/240

208/240

208/240

115

208/240

208/240

208/240

208/240

115

208/240

208/240

208/240

208/240

208/240

115

4.3 /

0.50

4.3 /

0.50

4.3 /

0.50

4.3 /

0.50

2.8 /

0.33

2.8 /

0.33

2.8 /

0.33

5.0 /

0.33

6.8 /

0.75

6.8 /

0.75

6.8 /

0.75

12.8 /

1.0

7.7 /

0.50

6.8 /

0.75

6.8 /

0.75

0

1

1

0

0

1

1

2

0

0

1

1

2

2

0

0

5

10

0

0

5

10

15

0

0

5

10

15

20

0

-

-

5.0

-

-

-

7.7

-

-

-

-

-

12.8

18.0

36.1

-

-

18.0

36.1

-

-

-

-

-

20.8

41.7

-

-

20.8

41.7

-

-

-

-

-

-

18.0

36.1

20.8

41.7

-

-

18.0

36.1

-

-

-

-

-

-

20.8

41.7

-

-

-

-

18.0

36.1

20.8

41.7

36.1

36.1

41.7

41.7

-

-

-

6.3

-

-

-

9.6

-

-

-

-

-

16.0

25.3

47.9

-

5.4

26.8

49.4

-

-

-

-

-

-

28.8

54.9

5.4

30.3

56.4

-

-

-

-

-

-

-

-

-

26.8 49.4 30.3 56.4

-

8.5

29.3

51.9

-

-

-

-

8.5

32.8

58.9

-

-

-

-

29.3 51.9 32.8 58.9

51.9 51.9 58.9 58.9

Notes:

1. Always refer to unit nameplate data prior to installation

2. Maximum overcurrent device, overcurrent protection installed on breaker are sized per MCA

MOCP

115V

Maximum Overcurrent Protection

MOCP

208V

MOCP

208V

MOCP

240V

MOCP

240V

Cr 1 Cr 1 Cr 2 Cr 1 Cr 2

10.0

10.0

-

-

-

10.0

-

-

-

15.0

-

-

-

-

-

20.0

35.0

60.0

-

10.0

35.0

60.0

35.0

-

15.0

35.0

60.0

35.0

60.0

-

-

-

-

-

-

-

60.0

-

-

-

-

60.0

60.0

-

35.0

60.0

10.0

40.0

60.0

40.0

15.0

40.0

70.0

40.0

70.0

-

-

-

-

-

-

-

-

-

-

60.0

-

-

-

-

70.0

70.0

Enertech Global

50

WT Models, Rev.: B

Section 11: Specification Glossary, Calculations

Glossary

COP = Coefficient of Performance = BTU Output / BTU Input

DH = Desuperheater Capacity, Btu/hr

EER = Energy Efficiency Ratio = BTU output/Watts input

EST = Entering Source Water Temperature, Fahrenheit

ELT = Entering Load Water Temperature, Fahrenheit

GPM = Water Flow, Gallons Per Minute

HE = Total Heat Of Extraction, Btu/hr

HR = Total Heat Of Rejection, Btu/hr

KW = Total Power Unit Input, Kilowatts

LWT = Leaving Source Water Temperature, Fahrenheit

LLT = Leaving Load Water Temperature, Fahrenheit

TC = Total Cooling Capacity, Btu/hr

HC = Heating Capacity, Btu/hr

WPD = Water Pressure Drop, PSI & Feet of Water

Heating & Cooling Calculations

Heating

LWT = EST - HE

GPM x 500*

HE = 500* x GPM x (EWT - LWT)

Cooling

LWT = EST + HR

GPM x 500*

HR = 500* x GPM x (LWT - EWT)

*500 = Constant factor for pure water. Brine should be 485.

Source Water Flow Selection

Proper flow rate is crucial for reliable operation of geothermal heat pumps. The performance data shows three flow rates for each entering water temperature (EST column). The general “rule of thumb” when selecting flow rates is the following:

Top flow rate: Open loop systems (1.5 to 2.0 gpm per ton)

Middle flow rate: Minimum closed loop system flow rate

(2.25 to 2.50 gpm/ton)

Bottom flow rate: Nominal (optimum) closed loop system flow rate

(3.0 gpm/ton)

Although the “rule of thumb” is adequate in most areas of North

America, it is important to consider the application type before applying this “rule of thumb.” Antifreeze is generally required for all closed loop

(geothermal) applications. Extreme Southern U.S. locations are the only exception. Open loop (well water) systems cannot use antifreeze, and must have enough flow rate in order to avoid freezing conditions at the Leaving Source Water Temperature (LWT) connection.

Calculations must be made for all systems without antifreeze to determine if the top flow rate is adequate to prevent LWT at or near freezing conditions. The following steps should taken in making this calculation:

Determine minimum EST based upon your geographical area.

Go to the performance data table for the heat pump model selected and look up the the Heat of Extraction (HE) at the “rule of thumb” water flow rate (GPM) and at the design Entering Load Temperature (ELT).

Calculate the temperature difference (TD) based upon the HE and GPM of the model.

TD = HE / (GPM x 500).

Calculate the LWT.

LWT = EST - TD.

If the LWT is below 35-38°F, there is potential for freezing conditions if the flow rate or water temperature is less than ideal conditions, and the flow rate must be increased.

Example 1:

EST = 50°F, ELT = 95°F.

Model 036 Full Load, heating. Flow rate = 5 GPM. HE = 33,600 Btuh.

TD = 33,600 / (5 x 500) = 13.4°F

LWT = 50 - 13.4 = 36.6°F

Water flow rate should be adequate under these conditions.

Example 2:

EST = 40°F, ELT = 95°F.

Model 036 Full Load, heating. Flow rate = 5 GPM. HE = 28,700 Btuh.

TD = 28,700 / (5 x 500) = 11.5°F

LWT = 40 - 11.5 = 28.5°F

Water flow rate must be increased.

Application Notes for Performance Data

Notes:

1. Desuperheater Capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

2. Extrapolation data down to 25°F for heating and interpolation between EST & GPM data is permissible.

3. EWT (Entering Water Temperature) is also called EST (Entering Source Temperature).

4. Load flow rate is the same as the nominal source flow rate, approximately 3 GPM per ton.

WT Models, Rev.: B

51

Enertech Global

Section 11: AHRI Performance Data

Ground Loop and Ground Water Heat Pump

MODEL TYPE

F/L COOL F/L EER F/L HEAT F/L COP P/L COOL P/L EER P/L HEAT P/L COP

WT036

WT048

WT060

WT092

WT120

WT144

GW 44,300

GL 42,000

GW 54,300

GL 49,400

GW 62,700

GL 57,800

GW 107,100

GL 100,200

GW 124,400

GL 114,800

GW 134,000

GL 124,500

20.6

16.0

19.8

15.1

19.0

14.6

19.8

15.2

20.1

15.4

17.2

13.5

44,900

36,400

55,100

44,100

66,200

53,200

117,000

92,400

124,900

97,400

140,800

109,400

3.6

3.0

3.6

3.0

3.6

3.0

3.8

3.1

3.5

2.8

3.3

2.7

34,600

33,300

40,800

38,800

47,800

46,100

78,500

75,700

NA

NA

NA

NA

24.5

20.6

23.0

19.2

21.4

18.1

22.2

18.6

NA

NA

NA

NA

33,300

29,200

40,500

35,700

49,500

44,400

82,300

75,700

NA

NA

NA

NA

3.5

3.1

3.5

3.1

3.5

3.1

3.4

3.1

NA

NA

NA

NA

Ground Loop (GL) Notes:

Rated in accordance with ISO Standard 13256-2 which includes Pump Penalties.

Heating capacities based on 32°F EST & 104°F ELT.

Cooling capacities based on 77°F EST & 53.6°F ELT.

Entering load temperature over 120°F heating and under 45°F Cooling is not permissible.

Floor heating is most generally designed for 85°F entering load temperature.

Ground Water (GW) Notes:

Rated in accordance with ISO Standard 13256-2 which includes Pump Penalties.

Heating capacities based on 50°F EST & 104°F ELT.

Cooling capacities based on 59°F EST & 53.6°F ELT.

Entering load temperature over 120°F heating and under 45°F Cooling is not permissible.

Floor heating is most generally designed for 85°F entering load temperature.

Notice:

*Model 144 is available in 3-Phase Only

Model 144 is outside the scope of the ENERGY STAR program and AHRI listing.

Enertech Global

52

WT Models, Rev.: B

Heating

EST

°F

25

30

40

50

60

70

80

90

110

Source

GPM

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

PSI

0.9

1.1

WPD

FT

2.2

5.0

2.0

1.3

3.0

1.8

4.1

0.8

1.8

1.2

2.7

1.6

3.7

0.8

1.8

1.2

2.8

1.6

3.8

0.8

1.8

1.2

2.7

1.6

3.7

0.7

1.6

1.1

2.5

1.4

3.3

0.6

1.5

1.0

2.2

1.3

3.0

0.6

1.5

1.0

2.2

1.3

3.0

0.5

1.2

0.8

1.8

2.5

ELT °F

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

85

95

110

95

110

85

95

110

95

110

85

95

110

85

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

Load

GPM

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.8

1.8

1.7

1.6

1.8

1.7

1.8

1.7

1.6

1.8

1.7

1.6

1.7

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.7

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.6

1.8

1.7

1.6

1.8

1.7

1.6

1.8

1.8

1.7

1.6

1.8

1.7

1.8

1.7

1.6

1.8

1.7

1.6

PSI

1.8

1.7

1.6

WPD

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.1

4.1

4.0

3.6

4.1

4.0

4.1

4.0

3.6

4.1

4.0

3.6

4.0

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.0

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.1

4.0

3.6

3.6

4.1

4.0

3.6

4.1

4.0

3.6

4.1

4.1

4.0

3.6

4.1

4.0

4.1

4.0

3.6

4.1

4.0

3.6

FT

4.1

4.0

3.6

HC

Mbtuh

HE

Mbtuh

LLT

°F kW

COP

W/W

24.1

16.7

93.0

2.18

3.24

23.9

15.2

103.0

2.55

2.75

23.5

12.7

117.8

3.16

2.18

25.5

18.0

93.5

2.21

3.38

25.3

16.5

103.4

2.59

2.86

24.9

13.9

118.3

3.21

2.27

26.1

18.7

93.7

2.17

3.52

25.9

17.2

103.6

2.54

2.99

25.4

14.7

118.5

3.15

2.36

26.7

19.4

93.9

2.13

3.67

26.4

17.9

103.8

2.49

3.11

26.0

15.5

118.7

3.09

2.47

29.9

22.5

95.0

1.57

4.06

29.6

21.0

104.9

1.57

3.43

29.1

18.4

119.7

1.57

2.72

30.6

23.4

95.2

2.12

4.23

30.3

21.8

105.1

2.48

3.58

29.8

19.3

119.9

3.07

2.84

31.2

24.1

95.4

2.08

4.40

30.9

22.6

105.3

2.43

3.73

30.4

20.1

120.1

3.01

2.96

34.2

27.0

96.4

2.12

4.73

33.9

25.5

106.3

2.47

4.02

33.3

22.9

121.1

3.06

3.19

35.0

27.9

96.7

2.08

4.93

34.7

26.4

106.6

2.43

4.19

34.1

23.8

121.4

3.01

3.32

35.7

28.7

96.9

2.04

5.13

35.4

27.3

106.8

2.38

4.36

34.8

24.7

121.6

2.95

3.46

38.8

31.8

97.9

2.05

5.55

38.4

30.2

107.8

2.40

4.69

37.7

27.6

122.6

2.97

3.72

39.7

32.8

98.2

2.01

5.79

39.3

31.3

108.1

2.35

4.90

38.6

28.6

122.9

2.92

3.87

40.5

33.7

98.5

1.98

5.99

40.1

32.2

108.4

2.31

5.09

39.4

29.6

123.1

2.86

4.04

43.3

36.5

99.4

2.00

6.35

42.9

34.9

109.3

2.33

5.40

42.2

32.3

124.1

2.89

4.28

44.3

37.6

99.8

1.96

6.62

43.9

36.1

109.6

2.29

5.62

43.2

33.5

124.4

2.84

4.46

45.3

38.7

100.1

1.92

6.91

44.8

37.1

109.9

2.25

5.84

44.1

34.6

124.7

2.78

4.65

47.6

40.9

100.9

1.96

7.12

47.2

39.4

110.7

2.30

6.01

46.4

36.7

125.5

2.85

4.77

48.8

42.2

101.3

1.93

7.41

48.3

40.6

111.1

2.25

6.29

47.5

38.0

125.8

2.79

4.99

49.8

43.4

101.6

1.89

7.72

49.3

41.8

111.4

2.21

6.54

48.5

39.2

126.2

2.74

5.19

52.0

45.4

102.3

1.94

7.86

51.5

43.8

112.2

2.26

6.68

50.6

41.0

126.9

2.80

5.30

53.2

46.7

102.7

1.90

8.21

52.7

45.1

112.6

2.22

6.96

51.8

42.4

127.3

2.75

5.52

54.3

48.0

103.1

1.86

8.56

53.8

46.4

112.9

2.18

7.23

52.9

43.7

127.6

2.70

5.74

Operation Not Recommended

ELT °F

45

50

40

45

50

40

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

40

45

50

45

50

40

45

50

45

50

40

45

50

40

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

40

45

50

Load

GPM

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

* See Page 13 for Application Notes

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

WT Models, Rev.: B

53

DH

Mbtuh

6.3

6.4

6.6

6.5

6.6

6.8

6.7

7.0

5.7

5.8

5.6

6.0

5.9

5.8

6.3

6.3

6.9

6.8

7.1

7.1

6.9

7.3

7.2

7.1

5.5

5.5

5.7

5.5

5.6

5.1

5.1

5.1

5.2

5.1

5.3

4.4

4.6

4.5

4.5

4.6

4.7

4.5

5.1

4.0

4.0

4.0

4.0

4.3

4.2

4.5

4.5

3.4

3.4

3.5

3.4

3.4

3.9

4.0

4.0

3.2

3.2

3.1

3.4

3.4

3.3

3.5

PSI

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F

Operation Not Recommended

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

kW EER

DH

Mbtuh

32.5

35.6

29.2

0.92

35.33

4.1

35.8

38.9

33.1

0.91

39.34

4.6

38.1

41.2

37.3

0.91

41.87

4.8

34.5

37.6

28.5

0.90

38.33

4.4

37.9

40.9

32.4

0.89

42.58

4.8

40.3

43.3

36.6

0.89

45.28

5.1

33.4

36.4

28.9

0.88

37.95

4.2

36.8

39.8

32.7

0.87

42.30

4.6

39.1

42.1

37.0

0.87

44.94

4.5

31.0

35.1

29.7

1.21

25.62

4.1

34.1

38.2

33.6

1.19

28.66

4.6

36.3

40.4

37.9

1.19

30.50

4.8

32.9

36.9

29.0

1.18

27.88

4.4

36.2

40.2

32.9

1.17

30.94

4.8

38.5

42.5

37.2

1.17

32.91

5.1

31.9

35.9

29.4

1.16

27.50

4.2

35.1

39.0

33.3

1.15

30.52

5.1

37.4

41.3

37.5

1.15

32.52

4.9

30.5

35.5

29.8

1.46

20.89

4.4

33.6

38.5

33.8

1.44

23.33

4.4

35.7

40.6

38.1

1.44

24.79

4.5

32.3

37.2

29.2

1.43

22.59

4.6

35.6

40.4

33.1

1.41

25.25

4.4

37.9

42.7

37.4

1.41

26.88

4.5

31.4

36.2

29.5

1.40

22.43

4.5

34.5

39.2

33.5

1.39

24.82

4.7

36.7

41.4

37.8

1.39

26.40

4.6

30.0

35.8

30.0

1.71

17.54

3.9

33.0

38.8

34.0

1.69

19.53

4.3

35.1

40.9

38.3

1.69

20.77

4.6

31.8

37.5

29.4

1.67

19.04

4.1

35.0

40.6

33.3

1.65

21.21

4.5

37.2

42.8

37.6

1.65

22.55

4.8

30.8

36.4

29.7

1.64

18.78

4.0

33.9

39.4

33.7

1.62

20.93

4.9

36.1

41.6

38.0

1.62

22.28

4.7

29.3

36.1

30.2

1.98

14.80

4.2

32.2

38.9

34.3

1.96

16.43

4.2

34.3

41.0

38.6

1.96

17.50

4.3

31.1

37.7

29.6

1.94

16.03

4.5

34.2

40.8

33.6

1.92

17.81

4.2

36.4

43.0

37.9

1.92

18.96

4.4

30.1

36.6

30.0

1.91

15.76

4.3

33.1

39.5

34.0

1.88

17.61

4.3

35.3

41.7

38.2

1.88

18.78

4.4

28.6

36.5

30.5

2.31

12.38

3.8

31.4

39.2

34.5

2.28

13.77

4.2

33.5

41.3

38.8

2.28

14.69

4.5

30.3

38.0

29.9

2.27

13.35

4.1

33.3

40.9

33.9

2.24

14.87

4.4

35.5

43.1

38.2

2.24

15.85

4.8

29.4

37.0

30.2

2.23

13.18

3.9

32.3

39.8

34.2

2.20

14.68

4.3

34.4

41.9

38.5

2.20

15.64

4.6

26.4

37.0

31.2

3.10

8.52

3.5

29.1

39.5

35.3

3.06

9.51

3.9

30.9

41.3

39.7

3.06

10.10

4.1

28.0

38.4

30.7

3.04

9.21

3.8

30.8

41.0

34.7

3.00

10.27

4.1

32.8

43.0

39.1

3.00

10.93

4.4

27.2

37.4

30.9

2.98

9.13

3.6

29.9

39.9

35.0

2.94

10.17

3.9

31.8

41.8

39.4

2.94

10.82

4.2

Enertech Global

EST

°F

25

30

Source

GPM

9.0

5.0

7.0

9.0

PSI

4.0

1.5

2.6

3.8

WPD

FT

9.2

3.5

5.9

8.8

ELT °F

85

95

110

85

95

110

85

95

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

Load

GPM

9.0

9.0

9.0

9.0

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.6

2.6

2.5

2.2

2.6

2.5

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.6

2.6

2.5

2.2

2.6

2.5

2.2

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.5

2.2

2.6

2.5

2.2

2.6

2.5

2.2

PSI

2.6

2.5

2.2

2.6

2.5

2.2

2.6

WPD

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.9

5.9

5.8

5.1

5.9

5.8

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.9

5.9

5.8

5.1

5.9

5.8

5.1

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.8

5.1

5.9

5.8

5.1

5.9

5.8

5.1

FT

5.9

5.8

5.1

5.9

5.8

5.1

5.9

ELT °F

Load

GPM

40

50

60

70

80

90

110

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

1.4

2.3

3.4

1.2

2.1

3.1

1.1

1.9

2.8

1.0

1.8

2.6

1.0

1.7

2.5

0.9

1.6

2.4

0.9

1.5

2.2

3.1

5.4

8.0

2.8

4.8

7.2

2.6

4.4

6.5

2.4

4.1

6.1

2.3

3.9

5.8

2.2

3.8

5.6

2.0

3.4

5.1

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

Operation Not Recommended

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

50

40

45

50

40

45

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

40

45

50

40

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

* See Page 13 for Application Notes

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

Enertech Global

54

Heating

HC

Mbtuh

HE

Mbtuh

LLT

°F kW

COP

W/W

30.9

21.6

91.9

2.74

3.31

30.4

19.7

101.8

3.15

2.83

29.1

16.2

116.5

3.79

2.25

35.0

25.4

92.8

2.80

3.66

34.5

23.5

102.7

3.22

3.14

33.0

19.8

117.3

3.87

2.50

35.8

26.4

93.0

2.76

3.80

35.4

24.6

102.9

3.17

3.27

33.8

20.8

117.5

3.82

2.59

35.9

26.6

93.0

2.73

3.85

35.4

24.7

102.9

3.14

3.30

33.8

20.9

117.5

3.78

2.62

40.1

30.6

93.9

2.60

4.23

39.6

28.7

103.8

2.60

3.63

37.8

24.7

118.4

2.60

2.88

41.1

31.8

94.1

2.74

4.40

40.6

29.9

104.0

3.15

3.78

38.8

25.9

118.6

3.79

3.00

41.2

32.0

94.2

2.71

4.46

40.7

30.1

104.0

3.12

3.82

38.8

26.0

118.6

3.75

3.03

45.1

35.6

95.0

2.77

4.77

44.5

33.6

104.9

3.19

4.09

42.5

29.4

119.4

3.83

3.25

46.2

36.9

95.3

2.73

4.96

45.6

34.9

105.1

3.14

4.26

43.6

30.7

119.7

3.78

3.38

46.3

37.1

95.3

2.70

5.03

45.7

35.1

105.2

3.11

4.31

43.7

30.9

119.7

3.74

3.42

51.5

42.0

96.4

2.78

5.43

50.8

39.9

106.3

3.20

4.65

48.6

35.5

120.8

3.85

3.70

52.8

43.5

96.7

2.74

5.65

52.1

41.4

106.6

3.15

4.85

49.8

36.9

121.1

3.79

3.85

52.9

43.7

96.8

2.71

5.72

52.2

41.6

106.6

3.12

4.90

49.9

37.1

121.1

3.75

3.90

57.5

47.9

97.8

2.81

6.00

56.8

45.8

107.6

3.23

5.15

54.2

40.9

122.0

3.89

4.08

58.9

49.4

98.1

2.77

6.23

58.1

47.2

107.9

3.18

5.35

55.5

42.4

122.3

3.83

4.25

59.1

49.8

98.1

2.74

6.32

58.3

47.6

108.0

3.15

5.42

55.7

42.8

122.4

3.79

4.31

61.4

51.7

98.6

2.85

6.31

60.6

49.4

108.5

3.28

5.41

57.9

44.4

122.9

3.95

4.30

62.9

53.3

99.0

2.81

6.56

62.1

51.0

108.8

3.24

5.62

59.3

46.0

123.2

3.89

4.47

63.0

53.5

99.0

2.78

6.64

62.2

51.3

108.8

3.20

5.70

59.4

46.3

123.2

3.85

4.52

65.1

55.2

99.5

2.91

6.56

64.3

52.9

109.3

3.35

5.63

61.4

47.7

123.6

4.02

4.48

66.7

56.9

99.8

2.87

6.81

65.8

54.5

109.6

3.30

5.84

62.9

49.4

124.0

3.97

4.64

66.9

57.2

99.9

2.83

6.93

66.0

54.9

109.7

3.26

5.93

63.0

49.6

124.0

3.92

4.71

DH

Mbtuh

7.7

7.6

7.3

8.0

8.1

7.9

8.1

8.3

7.3

7.2

7.6

7.6

7.2

6.7

6.7

6.8

6.6

6.7

7.2

7.0

7.6

6.1

5.9

5.8

6.0

5.9

5.7

6.7

6.7

8.8

8.4

8.9

8.8

8.4

8.1

8.1

8.4

8.2

8.7

8.6

8.2

8.9

5.3

5.3

5.2

5.6

5.5

6.0

5.9

5.7

4.5

4.7

4.6

4.4

5.2

5.4

5.3

5.3

4.1

4.1

3.8

4.6

4.6

4.3

4.8

4.6

PSI

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F

Operation Not Recommended

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

kW EER

DH

Mbtuh

40.6

45.5

31.0

1.43

28.39

5.1

44.7

49.6

35.1

1.43

31.26

5.7

47.6

52.5

39.4

1.43

33.29

6.0

41.8

46.6

30.7

1.41

29.65

5.3

45.9

50.7

34.8

1.41

32.55

5.7

48.9

53.7

39.1

1.41

34.68

6.2

41.9

46.6

30.7

1.39

30.14

5.2

46.1

50.8

34.8

1.39

33.17

5.8

49.1

53.8

39.1

1.39

35.32

5.6

38.8

45.1

31.4

1.84

21.09

5.1

42.6

48.9

35.5

1.84

23.15

5.7

45.4

51.7

39.9

1.84

24.67

6.0

39.9

46.1

31.1

1.81

22.04

5.3

43.8

50.0

35.3

1.81

24.20

5.7

46.7

52.9

39.6

1.81

25.80

6.2

40.0

46.1

31.1

1.79

22.35

5.2

44.0

50.1

35.2

1.79

24.58

6.4

46.8

52.9

39.6

1.79

26.15

6.1

38.1

45.2

31.5

2.07

18.41

5.5

41.9

49.0

35.7

2.07

20.24

5.4

44.6

51.7

40.1

2.07

21.55

5.6

39.2

46.2

31.3

2.04

19.22

5.6

43.1

50.1

35.4

2.04

21.13

5.4

45.9

52.9

39.8

2.04

22.50

5.6

39.3

46.2

31.3

2.01

19.55

5.6

43.2

50.1

35.4

2.01

21.49

5.9

46.0

52.9

39.8

2.02

22.77

5.7

37.5

45.3

31.7

2.29

16.38

5.0

41.2

49.0

35.8

2.29

17.99

5.4

43.9

51.7

40.2

2.29

19.17

5.8

38.5

46.2

31.4

2.26

17.04

5.0

42.4

50.1

35.6

2.25

18.84

5.5

45.1

52.8

40.0

2.26

19.96

5.9

38.7

46.3

31.4

2.23

17.35

5.0

42.5

50.1

35.6

2.23

19.06

6.2

45.3

52.9

39.9

2.23

20.31

5.9

36.6

45.4

31.9

2.59

14.13

5.3

40.3

49.1

36.0

2.59

15.56

5.2

42.9

51.7

40.5

2.59

16.56

5.3

37.7

46.4

31.6

2.55

14.78

5.5

41.4

50.1

35.8

2.55

16.24

5.2

44.1

52.8

40.2

2.55

17.29

5.4

37.8

46.4

31.6

2.52

15.00

5.4

41.5

50.1

35.8

2.52

16.47

5.4

44.2

52.8

40.2

2.53

17.47

5.5

35.7

45.8

32.1

2.97

12.02

4.8

39.3

49.4

36.3

2.97

13.23

5.4

41.8

52.0

40.7

2.98

14.03

5.6

36.7

46.7

31.8

2.93

12.53

5.0

40.4

50.4

36.0

2.93

13.79

5.4

43.0

53.0

40.4

2.93

14.68

5.8

36.8

46.7

31.8

2.90

12.69

4.9

40.5

50.4

36.0

2.90

13.97

5.4

43.1

53.0

40.4

2.90

14.86

5.7

33.0

46.1

32.7

3.83

8.62

4.4

36.3

49.4

36.9

3.83

9.48

4.8

38.7

51.8

41.4

3.84

10.08

5.2

33.9

46.8

32.5

3.78

8.97

37.3

50.2

36.7

3.78

9.87

4.5

4.9

39.8

52.7

41.2

3.78

10.53

5.3

34.0

46.8

32.4

3.74

9.09

4.5

37.4

50.1

36.7

3.73

10.03

5.0

39.9

52.7

41.1

3.74

10.67

5.3

WT Models, Rev.: B

EST

°F

25

30

Source

GPM

9.0

5.0

7.0

9.0

PSI

WPD

FT

2.3

5.2

0.5

1.2

1.0

2.3

2.2

5.0

ELT °F

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

Load

GPM

9.0

9.0

9.0

9.0

1.9

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.1

2.1

1.9

2.2

2.1

1.9

2.2

2.1

1.9

1.9

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.2

2.1

1.9

2.2

2.1

1.9

2.1

1.9

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.1

1.9

2.2

2.1

2.1

1.9

2.2

2.1

1.9

PSI

2.2

2.1

1.9

2.2

2.1

1.9

2.2

WPD

4.4

5.0

4.9

4.4

5.0

4.9

4.4

5.0

5.0

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.4

4.4

5.0

4.9

4.4

5.0

4.9

4.4

5.0

5.0

4.9

4.4

5.0

4.9

4.4

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.4

5.0

4.9

4.9

4.4

5.0

4.9

4.4

FT

5.0

4.9

4.4

5.0

4.9

4.4

5.0

ELT °F

Load

GPM

40

50

60

70

80

90

110

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

5.0

7.0

9.0

0.5

1.1

0.9

2.1

1.9

4.5

0.4

1.0

0.8

2.0

1.8

4.2

0.4

1.0

0.8

2.0

1.8

4.2

0.4

1.0

0.9

2.0

1.8

4.2

0.4

1.0

0.8

2.0

1.8

4.2

0.4

0.9

0.8

1.8

1.7

3.8

0.4

0.9

0.7

1.7

1.6

3.6

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

Operation Not Recommended

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

40

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

* See Page 13 for Application Notes

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

WT Models, Rev.: B

55

Heating

HC

Mbtuh

HE

Mbtuh

LLT

°F kW

COP

W/W

30.3

21.2

91.7

2.67

3.33

29.4

19.0

101.5

3.06

2.82

28.5

15.7

116.3

3.74

2.23

29.4

19.7

91.5

2.84

3.03

28.6

17.5

101.4

3.24

2.59

27.7

14.2

116.2

3.97

2.04

31.4

22.2

92.0

2.71

3.40

30.5

19.9

101.8

3.10

2.88

29.5

16.6

116.6

3.79

2.28

32.3

23.4

92.2

2.61

3.63

31.4

21.2

102.0

2.99

3.08

30.4

17.9

116.8

3.65

2.44

34.5

24.9

92.7

2.22

3.61

33.6

22.6

102.5

2.22

3.07

32.5

19.1

117.2

2.22

2.43

36.8

27.7

93.2

2.68

4.02

35.8

25.4

103.0

3.06

3.43

34.7

21.9

117.7

3.75

2.71

37.9

29.1

93.4

2.58

4.31

36.9

26.8

103.2

2.95

3.67

35.7

23.4

117.9

3.61

2.90

39.6

30.1

93.8

2.77

4.19

38.5

27.7

103.6

3.17

3.56

37.3

24.1

118.3

3.87

2.82

42.2

33.2

94.4

2.65

4.67

41.1

30.8

104.1

3.03

3.98

39.8

27.2

118.8

3.70

3.15

43.5

34.8

94.7

2.55

5.00

42.3

32.3

104.4

2.92

4.25

41.0

28.8

119.1

3.57

3.37

44.0

34.8

94.8

2.70

4.78

42.8

32.3

104.5

3.08

4.07

41.4

28.5

119.2

3.77

3.22

46.9

38.1

95.4

2.58

5.33

45.6

35.5

105.1

2.95

4.53

44.2

31.9

119.8

3.60

3.60

48.3

39.8

95.7

2.48

5.71

47.0

37.3

105.4

2.84

4.85

45.5

33.7

120.1

3.47

3.84

48.2

39.3

95.7

2.62

5.39

46.8

36.6

105.4

2.99

4.59

45.4

32.9

120.1

3.66

3.64

51.4

42.9

96.4

2.50

6.03

49.9

40.1

106.1

2.86

5.11

48.4

36.5

120.8

3.50

4.05

52.9

44.7

96.8

2.41

6.43

51.5

42.1

106.4

2.76

5.47

49.8

38.3

121.1

3.37

4.33

52.7

43.9

96.7

2.58

5.99

51.3

41.2

106.4

2.95

5.10

49.7

37.4

121.0

3.60

4.05

56.2

47.8

97.5

2.46

6.70

54.7

45.1

107.2

2.82

5.68

52.9

41.2

121.8

3.44

4.51

57.9

49.8

97.9

2.37

7.16

56.3

47.1

107.5

2.71

6.09

54.5

43.2

122.1

3.32

4.81

57.2

48.6

97.7

2.53

6.63

55.6

45.7

107.4

2.90

5.62

53.9

41.8

122.0

3.54

4.46

61.0

52.7

98.6

2.42

7.39

59.3

49.8

108.2

2.77

6.27

57.4

45.9

122.8

3.38

4.98

62.8

54.8

99.0

2.33

7.90

61.1

52.0

108.6

2.67

6.71

59.2

48.1

123.2

3.26

5.32

DH

Mbtuh

7.3

7.5

7.5

7.4

7.6

7.5

7.2

8.2

6.9

6.6

6.5

6.8

7.1

7.0

7.3

7.4

7.9

7.7

8.4

8.2

7.9

6.2

6.1

6.4

6.1

6.0

6.7

6.5

6.3

5.4

5.7

5.9

5.8

6.0

6.1

6.0

6.2

5.3

5.1

5.0

5.6

5.4

5.3

5.7

5.5

4.7

4.6

4.8

4.9

4.8

4.9

5.0

5.0

3.6

4.2

4.1

3.9

4.3

4.1

4.0

4.5

3.9

3.9

3.7

3.8

3.8

PSI

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F

Operation Not Recommended

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

kW EER

DH

Mbtuh

33.6

37.4

32.5

1.11

30.27

4.0

36.9

40.7

36.8

1.11

33.24

4.4

39.2

43.0

41.3

1.10

35.64

4.6

36.3

39.9

31.9

1.06

34.25

4.3

39.8

43.4

36.2

1.06

37.55

4.6

42.3

45.9

40.6

1.05

40.29

5.0

37.1

40.6

31.8

1.03

36.02

4.3

40.6

44.1

36.0

1.02

39.80

4.6

43.2

46.6

40.4

1.01

42.77

4.5

30.0

35.6

33.3

1.64

18.29

4.0

32.9

38.5

37.7

1.63

20.18

4.4

34.9

40.4

42.2

1.62

21.54

4.6

32.4

37.8

32.8

1.57

20.64

4.3

35.5

40.8

37.1

1.56

22.76

4.6

37.7

43.0

41.6

1.54

24.48

5.0

33.0

38.2

32.7

1.51

21.85

4.3

36.2

41.3

37.0

1.50

24.13

5.2

38.5

43.6

41.4

1.49

25.84

5.0

29.3

36.0

33.5

1.95

15.03

4.2

32.1

38.7

37.9

1.94

16.55

4.2

34.1

40.7

42.4

1.92

17.76

4.4

31.7

38.0

33.0

1.86

17.04

4.5

34.7

41.0

37.3

1.85

18.76

4.4

36.9

43.1

41.8

1.83

20.16

4.5

32.3

38.4

32.8

1.79

18.04

4.6

35.4

41.5

37.1

1.78

19.89

4.6

37.6

43.6

41.6

1.77

21.24

4.5

28.6

36.3

33.6

2.25

12.71

3.8

31.4

39.0

38.0

2.24

14.02

4.1

33.3

40.9

42.6

2.22

15.00

4.4

30.9

38.2

33.1

2.15

14.37

4.0

33.9

41.2

37.5

2.14

15.84

4.4

36.0

43.2

42.0

2.12

16.98

4.7

31.5

38.6

33.0

2.08

15.14

4.1

34.6

41.6

37.3

2.06

16.80

5.0

36.7

43.7

41.8

2.04

17.99

4.8

27.2

36.1

34.0

2.61

10.42

3.9

29.8

38.7

38.4

2.60

11.46

3.9

31.6

40.4

43.0

2.58

12.25

4.0

29.3

37.8

33.5

2.50

11.72

4.2

32.2

40.7

37.8

2.49

12.93

4.1

34.2

42.6

42.4

2.46

13.90

4.2

30.0

38.2

33.3

2.41

12.45

4.3

32.8

41.0

37.7

2.39

13.72

4.0

34.9

43.0

42.2

2.37

14.73

4.2

25.5

35.8

34.3

3.01

8.47

27.9

38.1

38.8

2.99

9.33

3.4

3.8

29.6

39.7

43.4

2.96

10.00

4.0

27.5

37.3

33.9

2.88

9.55

3.7

30.1

39.9

38.3

2.86

10.52

4.1

32.0

41.7

42.9

2.83

11.31

4.3

28.1

37.6

33.8

2.77

10.14

3.8

30.8

40.2

38.2

2.76

11.16

4.1

32.7

42.0

42.7

2.73

11.98

4.4

21.9

35.3

35.1

3.93

5.57

2.9

24.0

37.3

39.7

3.91

6.14

25.5

38.7

44.3

3.87

6.59

3.3

3.4

23.6

36.4

34.8

3.75

6.29

25.9

38.6

39.2

3.73

6.94

27.5

40.1

43.9

3.70

7.43

24.1

36.5

34.6

3.62

6.66

26.4

38.7

39.1

3.60

7.33

28.1

40.2

43.8

3.56

7.89

3.2

3.4

3.7

3.2

3.5

3.7

Enertech Global

EST

°F

Source

GPM

PSI

WPD

FT

25 12.0

4.2

9.7

30

40

50

60

70

80

90

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

0.7

1.6

2.2

5.2

12.0

4.0

9.2

0.6

1.4

2.0

4.6

12.0

3.6

8.3

0.6

1.3

1.8

4.2

12.0

3.2

7.5

0.5

1.2

1.7

3.9

12.0

3.0

6.9

0.5

1.2

1.6

3.8

12.0

2.9

6.8

0.5

1.2

1.7

3.9

12.0

3.0

7.0

0.6

1.3

1.8

4.1

12.0

3.2

7.4

ELT °F

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

95

110

85

95

110

85

95

110

110

85

95

110

85

85

95

110

85

95

110

85

95

85

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

95

110

85

95

110

Load

GPM

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

6.0

0.6

1.4

110 9.0

12.0

1.9

3.4

4.4

7.9

3.6

3.4

3.4

3.6

3.4

3.4

3.6

3.4

3.4

3.4

3.6

3.4

3.4

3.4

3.6

3.4

3.4

3.6

3.6

3.4

3.4

3.6

3.4

3.4

3.6

3.4

3.4

3.4

3.6

3.4

3.4

3.4

3.6

3.4

3.4

3.6

3.4

3.4

3.6

3.6

3.4

3.4

3.6

3.4

PSI

3.6

3.4

3.4

3.4

3.4

3.6

3.4

3.4

3.6

3.4

3.4

3.4

3.6

3.4

3.4

3.6

3.6

3.4

3.4

3.6

3.4

3.4

WPD

8.4

7.9

7.9

8.4

7.9

7.9

8.4

7.9

7.9

7.9

8.4

7.9

7.9

7.9

8.4

7.9

7.9

8.4

8.4

7.9

7.9

8.4

7.9

7.9

8.4

7.9

7.9

7.9

8.4

7.9

7.9

7.9

8.4

7.9

7.9

8.4

7.9

7.9

8.4

8.4

7.9

7.9

8.4

7.9

FT

8.4

7.9

7.9

7.9

7.9

8.4

7.9

7.9

8.4

7.9

7.9

7.9

8.4

7.9

7.9

8.4

8.4

7.9

7.9

8.4

7.9

7.9

Heating

HC

Mbtuh

HE

Mbtuh

LLT

°F kW

COP

W/W

DH

Mbtuh

41.1

29.8

91.9

3.32

3.63

40.2

27.4

101.7

3.74

3.15

38.9

23.7

116.5

4.45

2.56

40.8

28.4

91.8

3.62

3.30

39.9

26.0

101.7

4.08

2.87

38.7

22.2

116.5

4.85

2.34

43.5

31.7

92.3

3.45

3.70

42.5

29.2

102.1

3.89

3.20

41.2

25.4

116.9

4.63

2.61

44.2

43.2

41.9

46.9

45.8

44.4

32.8

30.3

26.6

34.4

31.7

27.7

92.4

102.2

117.0

92.8

102.6

117.4

3.34

3.77

4.48

3.99

3.99

3.99

3.88

3.36

2.74

3.77

3.26

2.66

49.9

38.0

93.3

3.48

4.20

48.8

35.4

103.1

3.93

3.64

47.3

31.4

117.9

4.67

2.97

50.7

39.2

93.5

3.38

4.40

49.6

36.6

103.3

3.80

3.83

48.0

32.6

118.0

4.52

3.11

53.1

40.5

93.9

3.69

4.22

51.9

50.3

56.6

56.1

54.4

37.7

33.4

44.6

43.0

38.8

103.7

118.4

94.4

104.4

119.1

4.16

4.95

3.52

3.85

4.57

3.66

2.98

4.71

55.3

41.8

104.2

3.97

4.08

53.6

37.5

118.9

4.72

3.33

57.4

45.8

94.6

3.41

4.93

4.27

3.49

59.5

46.7

94.9

3.75

4.65

58.1

43.7

104.7

4.22

4.03

56.3

39.2

119.4

5.02

3.29

63.4

51.2

95.6

3.58

5.19

61.9

48.1

105.3

4.03

4.50

60.0

64.4

62.9

62.8

70.7

43.7

52.6

49.6

45.3

58.3

120.0

95.7

105.5

120.5

96.8

4.79

3.46

3.90

5.12

3.64

3.67

5.45

4.73

61.0

45.2

120.2

4.64

3.85

66.3

53.3

96.1

3.82

5.09

64.8

50.1

105.8

4.30

4.42

3.59

5.69

69.1

55.1

106.5

4.11

4.93

66.9

50.2

121.2

4.88

4.02

71.8

59.8

97.0

3.53

5.96

70.1

56.5

106.7

3.98

5.16

68.0

51.9

121.3

4.73

4.21

73.6

60.3

97.3

3.89

5.55

72.0

57.0

107.0

4.39

4.81

69.7

51.9

121.6

5.22

3.91

9.6

9.9

9.8

78.5

65.8

98.1

3.72

6.18

10.2

76.7

62.4

107.8

4.19

5.36

10.4

9.0

8.7

9.4

9.1

8.9

8.1

8.3

8.5

8.4

8.8

8.4

8.3

9.2

7.8

8.0

7.9

8.2

8.3

6.9

6.7

7.5

7.2

7.1

7.5

7.4

7.1

6.5

6.5

6.8

6.6

7.1

5.8

5.6

5.5

6.1

6.4

6.3

6.5

6.5

5.3

5.1

5.8

5.6

5.5

5.4

5.3

5.1

5.4

74.3

57.3

122.4

4.98

4.37

10.2

79.7

67.4

98.3

3.60

6.49

10.3

77.9

64.0

108.0

4.06

5.62

10.6

75.5

59.1

122.6

4.82

4.59

10.4

81.1

67.5

98.5

3.98

5.97

10.9

79.3

64.0

108.2

4.48

5.19

10.6

76.8

58.6

122.8

5.33

4.22

10.3

86.5

73.6

99.4

3.79

6.69

11.6

84.5

69.9

109.1

4.28

5.79

11.3

81.9

64.5

123.7

5.09

4.72

11.0

87.8

75.3

99.6

3.67

7.01

11.7

85.8

71.7

109.3

4.14

6.07

11.5

83.1

66.3

123.9

4.93

4.94

11.1

ELT °F

Operation Not Recommended

50

40

45

50

40

45

50

40

40

45

50

40

45

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

50

45

50

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

50

40

45

50

40

40

45

50

40

45

Load

GPM

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

PSI

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F

Operation Not Recommended

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.2

kW EER

DH

Mbtuh

47.1

53.9

32.2

1.98

23.79

5.7

50.9

57.7

36.5

2.00

25.45

6.2

54.6

61.5

40.9

2.02

27.03

6.6

50.2

56.6

31.6

1.89

26.56

6.1

54.2

60.7

36.0

1.91

28.38

6.5

58.1

64.7

40.3

1.93

30.10

7.1

54.1

60.3

31.0

1.83

29.56

6.5

58.4

64.7

35.3

1.85

31.57

6.7

62.7

69.1

39.6

1.87

33.53

6.6

43.1

51.7

32.8

2.51

17.17

5.7

46.5

55.2

37.3

2.54

18.31

6.2

49.9

58.7

41.7

2.57

19.42

6.6

45.8

54.0

32.4

2.40

19.08

6.1

49.5

57.8

36.8

2.42

20.45

6.5

53.1

61.5

41.2

2.45

21.67

7.1

49.4

57.3

31.8

2.32

21.29

6.5

53.4

61.4

36.1

2.35

22.72

7.6

57.3

65.4

40.5

2.37

24.18

7.5

41.3

50.8

33.1

2.78

14.86

5.9

44.6

54.2

37.6

2.82

15.82

5.8

47.8

57.5

42.0

2.84

16.83

6.1

44.0

53.1

32.7

2.66

16.54

6.3

47.4

56.6

37.1

2.69

17.62

6.3

50.9

60.1

41.5

2.71

18.78

6.4

47.4

56.2

32.1

2.57

18.44

6.8

51.2

60.1

36.5

2.60

19.69

6.5

54.9

63.9

40.9

2.63

20.87

6.4

39.4

49.8

33.4

3.05

12.92

5.2

42.6

53.1

37.9

3.09

13.79

5.5

45.7

56.3

42.4

3.12

14.65

6.0

42.0

51.9

33.0

2.91

14.43

5.4

45.3

55.3

37.5

2.94

15.41

6.0

48.6

58.7

41.9

2.97

16.36

6.3

45.3

54.9

32.5

2.82

16.06

6.0

48.9

58.6

36.9

2.85

17.16

7.1

52.5

62.3

41.3

2.88

18.23

6.9

37.1

48.7

33.8

3.41

10.88

5.4

40.1

51.8

38.3

3.44

11.66

5.3

43.0

54.9

42.8

3.48

12.36

5.4

39.5

50.6

33.4

3.25

12.15

5.7

42.7

53.9

37.9

3.29

12.98

5.7

45.8

57.1

42.4

3.32

13.80

5.9

42.6

53.3

32.9

3.15

13.52

6.2

46.0

56.9

37.3

3.18

14.47

5.6

49.4

60.4

41.8

3.21

15.39

5.8

34.9

48.0

34.2

3.84

9.09

37.7

50.9

38.7

3.88

9.72

4.7

5.1

40.4

53.8

43.3

3.92

10.31

5.4

37.2

49.7

33.8

3.66

10.16

5.0

40.1

52.7

38.3

3.70

10.84

5.4

43.1

55.9

42.8

3.74

11.52

5.8

40.1

52.2

33.3

3.55

11.30

5.4

43.3

55.5

37.8

3.59

12.06

5.8

46.4

58.8

42.3

3.62

12.82

6.2

31.4

47.9

34.8

4.85

6.47

33.9

50.6

39.4

4.90

6.92

36.4

53.3

43.9

4.95

7.35

33.4

49.2

34.4

4.62

7.23

36.1

52.0

39.0

4.67

7.73

38.7

54.8

43.6

4.72

8.20

36.0

51.3

34.0

4.48

8.04

38.9

54.4

38.5

4.53

8.59

41.8

57.4

43.0

4.57

9.15

4.8

5.2

5.6

4.2

4.6

4.9

4.5

4.8

5.2

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

Enertech Global

56

WT Models, Rev.: B

EST

°F PSI

WPD

FT

25 12.0

5.4

12.5

30

Source

GPM

6.0

9.0

1.6

2.8

3.6

6.5

12.0

5.1

11.8

ELT °F

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

85

95

110

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

110

85

95

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

Load

GPM

12.0

12.0

12.0

12.0

WPD

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.5

7.0

5.1

7.5

7.0

7.0

5.1

7.5

7.0

5.1

7.5

7.0

5.1

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.5

7.0

5.1

7.5

7.0

5.1

7.0

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.0

5.1

7.5

7.0

7.0

5.1

7.5

7.0

5.1

FT

7.5

7.0

5.1

7.5

7.0

5.1

7.5

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.2

3.0

2.2

3.2

3.0

3.0

2.2

3.2

3.0

2.2

3.2

3.0

2.2

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.2

3.0

2.2

3.2

3.0

2.2

3.0

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.0

2.2

3.2

3.0

3.0

2.2

3.2

3.0

2.2

PSI

3.2

3.0

2.2

3.2

3.0

2.2

3.2

ELT °F

Load

GPM

40

50

60

70

80

90

110

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

6.0

9.0

1.4

2.7

12.0

2.3

3.3

6.2

12.0

4.6

10.6

1.3

2.5

12.0

4.1

1.2

2.5

12.0

3.8

1.1

2.4

12.0

3.5

1.0

2.3

12.0

3.3

1.0

2.3

12.0

3.2

0.7

2.2

2.9

5.8

9.5

2.7

5.8

8.7

2.5

5.5

8.1

2.4

5.3

7.7

2.3

5.3

7.3

1.6

5.1

5.2

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

Operation Not Recommended

45

50

40

45

50

40

45

50

50

40

45

50

40

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

40

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

* See Page 13 for Application Notes

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

WT Models, Rev.: B

57

Heating

HC

Mbtuh

HE

Mbtuh

LLT

°F kW

COP

W/W

DH

Mbtuh

36.4

25.4

91.1

3.22

3.31

35.3

22.7

100.9

3.68

2.81

34.2

18.8

115.7

4.50

2.23

35.7

23.9

91.0

3.46

3.02

34.6

21.1

100.8

3.96

2.56

33.5

17.0

115.6

4.84

2.03

37.5

26.4

91.3

3.25

3.38

36.4

23.7

101.1

3.72

2.87

35.3

19.8

115.9

4.55

2.27

38.8

28.1

91.5

3.14

3.62

37.7

25.4

101.3

3.60

3.07

36.5

21.5

116.1

4.40

2.43

41.9

30.2

92.0

3.45

3.59

40.6

27.3

101.8

3.45

3.04

39.4

23.1

116.6

3.45

2.42

44.0

33.0

92.3

3.21

4.02

42.7

30.1

102.1

3.68

3.40

41.4

26.1

116.9

4.49

2.70

45.6

35.0

92.6

3.11

4.30

44.2

32.1

102.4

3.55

3.65

42.9

28.1

117.2

4.35

2.89

48.0

36.5

93.0

3.38

4.16

46.5

33.3

102.8

3.87

3.52

45.1

29.0

117.5

4.73

2.79

50.5

39.6

93.4

3.18

4.65

48.9

36.5

103.2

3.63

3.95

47.5

32.4

117.9

4.44

3.14

52.3

41.8

93.7

3.07

4.99

50.7

38.7

103.5

3.51

4.23

49.2

34.6

118.2

4.29

3.36

53.3

42.1

93.9

3.29

4.75

51.7

38.9

103.6

3.76

4.03

50.1

34.4

118.4

4.60

3.19

56.0

45.5

94.3

3.09

5.31

54.3

42.3

104.1

3.53

4.51

52.7

38.0

118.8

4.32

3.58

58.0

47.8

94.7

2.99

5.69

56.3

44.6

104.4

3.42

4.82

54.6

40.3

119.1

4.18

3.83

58.4

47.5

94.7

3.19

5.37

56.6

44.1

104.4

3.65

4.54

54.9

39.6

119.2

4.47

3.60

61.4

51.2

95.2

3.00

6.00

59.5

47.8

104.9

3.43

5.08

57.7

43.4

119.6

4.20

4.03

63.6

53.7

95.6

2.90

6.43

61.7

50.4

105.3

3.32

5.45

59.8

45.9

120.0

4.06

4.32

63.9

53.2

95.7

3.14

5.96

62.0

49.8

105.3

3.59

5.06

60.1

45.1

120.0

4.39

4.01

67.2

57.1

96.2

2.95

6.68

65.2

53.7

105.9

3.38

5.65

63.2

49.1

120.5

4.13

4.48

69.6

59.9

96.6

2.85

7.16

67.5

56.4

106.3

3.26

6.07

65.5

51.9

120.9

3.99

4.81

69.4

58.9

96.6

3.09

6.58

67.2

55.2

106.2

3.53

5.58

65.2

50.5

120.9

4.32

4.42

72.9

63.0

97.2

2.90

7.37

9.0

8.7

9.8

70.7

59.4

106.8

3.32

6.24

68.6

54.7

121.4

4.06

4.95

9.5

9.2

75.5

65.9

97.6

2.81

7.87

10.1

73.2

62.2

107.2

3.21

6.68

71.0

57.6

121.8

3.92

5.31

9.8

9.5

7.5

7.4

7.8

7.4

7.3

8.0

7.8

7.5

6.4

6.9

7.1

7.0

7.2

7.3

7.2

7.4

8.8

9.0

9.1

8.9

9.3

8.3

8.0

7.8

8.3

8.5

8.4

8.7

8.9

6.4

6.2

6.0

6.7

6.4

6.3

6.8

6.6

5.6

5.5

5.7

5.8

5.7

5.8

6.0

5.9

4.4

5.0

4.8

4.7

5.1

4.9

4.8

5.4

4.8

4.7

4.5

4.7

4.6

PSI

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F kW

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

Operation Not Recommended

Enertech Global

45.2

49.8

32.5

1.36

33.24

5.8

46.9

51.5

37.2

1.35

34.74

6.1

50.6

55.2

41.6

1.34

37.76

6.5

47.9

52.3

32.0

1.28

37.42

6.2

49.7

54.0

36.7

1.27

39.13

6.4

53.6

57.9

41.1

1.26

42.54

6.9

49.9

54.1

31.7

1.24

40.24

6.4

51.7

55.9

36.4

1.23

42.03

6.5

55.8

60.0

40.7

1.22

45.74

6.5

44.0

50.8

32.7

2.00

22.00

5.8

45.6

52.4

37.4

1.99

22.91

6.1

49.2

55.9

41.8

1.97

24.97

6.5

46.6

53.0

32.2

1.88

24.79

6.2

48.3

54.7

37.0

1.87

25.83

6.4

52.1

58.4

41.3

1.85

28.16

6.9

48.5

54.7

31.9

1.82

26.65

6.4

50.3

56.5

36.6

1.81

27.79

7.2

54.2

60.3

41.0

1.79

30.28

7.1

42.9

51.0

32.9

2.38

18.03

6.1

44.5

52.6

37.6

2.36

18.86

6.0

48.0

56.0

42.0

2.34

20.51

6.2

45.5

53.1

32.4

2.23

20.40

6.4

47.1

54.7

37.2

2.22

21.22

6.3

50.8

58.3

41.5

2.20

23.09

6.5

47.3

54.7

32.1

2.16

21.90

6.6

49.1

56.4

36.8

2.15

22.84

6.5

52.9

60.2

41.2

2.13

24.84

6.5

41.9

51.3

33.0

2.75

15.24

5.6

43.4

52.7

37.8

2.74

15.84

5.7

46.8

56.0

42.2

2.71

17.27

6.2

44.4

53.2

32.6

2.58

17.21

5.8

46.0

54.8

37.3

2.57

17.90

6.1

49.6

58.3

41.7

2.55

19.45

6.5

46.2

54.7

32.3

2.50

18.48

6.1

47.9

56.4

37.0

2.49

19.24

6.8

51.6

60.0

41.4

2.46

20.98

6.8

40.7

51.6

33.2

3.19

12.76

5.8

42.2

53.0

38.0

3.17

13.31

5.6

45.5

56.2

42.4

3.14

14.49

5.9

43.1

53.3

32.8

3.00

14.37

6.0

44.7

54.9

37.6

2.98

15.00

6.0

48.2

58.3

42.0

2.95

16.34

6.2

44.9

54.8

32.5

2.90

15.48

6.3

46.5

56.3

37.3

2.88

16.15

5.9

50.2

59.9

41.6

2.85

17.61

6.2

39.3

51.8

33.5

3.67

10.71

5.3

40.8

53.3

38.2

3.65

11.18

5.4

44.0

56.4

42.7

3.62

12.15

5.9

41.7

53.5

33.1

3.45

12.09

5.5

43.2

54.9

37.8

3.43

12.59

5.8

46.6

58.2

42.2

3.40

13.71

6.2

43.4

54.8

32.8

3.33

13.03

5.8

45.0

56.3

37.5

3.32

13.55

6.0

48.5

59.7

41.9

3.29

14.74

6.5

36.7

53.0

33.9

4.79

7.66

38.0

54.3

38.7

4.77

7.97

41.0

57.1

43.2

4.72

8.69

38.8

54.2

33.5

4.50

8.62

40.3

55.6

38.3

4.48

9.00

43.4

58.5

42.8

4.44

9.77

40.4

55.2

33.3

4.35

9.29

41.9

56.7

38.0

4.33

9.68

5.4

5.6

45.2

59.8

42.5

4.29

10.54

6.0

4.9

5.1

5.5

5.2

5.4

5.8

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

EER

DH

Mbtuh

EST

°F

PSI

WPD

FT

25 15.0

6.5

15.0

30

40

50

60

70

80

90

110

Source

GPM

10.0

3.3

7.7

13.0

5.1

11.8

15.0

6.4

14.8

10.0

3.2

7.4

13.0

4.9

11.3

15.0

6.1

14.1

10.0

3.1

7.1

13.0

4.7

10.8

15.0

5.9

13.6

10.0

3.0

6.8

13.0

4.5

10.5

15.0

5.7

13.1

10.0

2.9

6.7

13.0

4.4

10.2

15.0

5.5

12.8

10.0

2.8

6.5

13.0

4.3

9.9

15.0

5.4

12.4

10.0

2.7

6.3

13.0

4.2

9.6

15.0

5.2

12.0

10.0

2.6

6.0

13.0

4.0

9.2

15.0

5.0

11.6

ELT °F

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

85

95

110

85

95

95

110

85

95

110

85

95

110

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

85

95

110

85

95

85

95

110

85

95

110

85

95

110

85

95

110

Load

GPM

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

5.1

4.6

5.2

5.1

4.6

5.2

5.1

4.6

4.6

5.2

5.1

4.6

5.2

5.1

4.6

5.2

5.2

5.1

4.6

5.2

5.1

5.2

5.1

4.6

5.2

5.1

5.1

4.6

5.2

5.1

4.6

5.1

4.6

5.2

5.1

4.6

5.2

5.1

4.6

4.6

5.2

5.1

4.6

5.2

5.1

4.6

5.2

PSI

5.2

5.1

4.6

5.2

5.1

4.6

5.2

WPD

Heating

HC

Mbtuh

HE

LLT

°F kW

COP

FT

Mbtuh W/W

12.1

49.2

35.8

91.6

3.94

3.66

11.7

48.0

32.6

101.4

4.50

3.13

10.7

12.1

12.1

46.4

50.2

51.8

27.9

35.8

37.8

116.2

91.7

91.9

5.41

4.22

4.11

2.51

3.49

11.7

48.9

32.5

101.5

4.82

2.97

10.7

47.3

27.5

116.3

5.79

2.39

3.69

DH

Mbtuh

11.7

50.5

34.5

101.7

4.69

3.16

10.7

48.8

29.6

116.5

5.64

2.54

12.1

52.6

38.7

92.0

4.06

3.80

11.7

51.3

35.5

101.8

4.64

3.24

10.7

49.6

30.6

116.6

5.57

2.61

12.1

11.7

10.7

12.1

11.7

57.8

56.3

54.4

59.6

58.1

43.5

40.0

34.7

45.7

42.2

92.7

102.5

117.3

92.9

102.7

4.19

4.79

5.76

4.08

4.66

4.04

3.44

2.77

4.28

3.65

10.7

56.2

37.1

117.5

5.61

2.94

12.1

60.6

46.8

93.1

4.03

4.41

11.7

59.1

43.4

102.9

4.61

3.76

10.7

57.1

38.2

117.6

5.54

3.02

12.1

65.5

51.2

93.7

4.18

4.59

11.7

63.9

47.6

103.5

4.78

3.92

10.7

61.8

42.2

118.2

5.75

3.15

12.1

67.6

53.7

94.0

4.07

4.87

11.7

10.7

12.1

11.7

10.7

65.9

63.7

68.7

71.4

69.0

50.0

44.6

55.0

54.6

48.8

103.8

118.5

94.2

104.5

119.2

4.65

5.60

4.02

4.91

5.91

4.15

3.33

5.01

11.7

67.0

51.3

103.9

4.60

4.27

10.7

64.8

45.9

118.6

5.53

3.43

12.1

73.3

58.6

94.8

4.30

5.00

4.26

3.42

12.1

75.6

61.3

95.1

4.19

5.29

11.7

73.7

57.4

104.8

4.78

4.52

10.7

71.2

51.6

119.5

5.75

3.63

9.7

9.9

9.7

12.1

76.8

62.7

95.2

4.14

5.44

9.9

11.7

74.9

58.8

105.0

4.73

4.64

10.2

8.6

8.5

9.0

8.7

8.5

9.5

9.7

9.6

7.7

7.8

8.1

8.0

8.7

8.5

8.2

9.0

7.5

7.7

7.6

7.8

7.8

6.5

6.2

6.9

6.6

6.5

6.9

6.7

6.5

6.5

6.4

6.1

6.6

10.7

12.1

11.7

10.7

12.1

11.7

10.7

72.4

81.4

79.4

79.2

85.4

91.0

88.0

53.0

66.2

62.0

58.9

70.8

73.8

67.3

119.7

95.9

105.6

120.6

96.4

107.1

121.7

5.68

4.45

5.09

5.95

4.28

5.05

6.07

3.74

5.36

4.57

3.90

5.85

5.28

4.25

10.1

10.7

10.3

10.7

76.7

55.8

120.2

6.12

3.67

10.1

12.1

84.0

69.2

96.2

4.33

5.69

10.9

11.7

81.9

65.0

105.9

4.95

4.85

10.7

10.3

11.2

11.7

83.3

66.6

106.1

4.89

4.99

10.9

10.7

80.5

60.4

120.7

5.88

4.01

10.6

12.1

90.4

74.9

97.1

4.54

5.84

11.8

11.7

88.2

70.5

106.8

5.18

4.99

12.0

10.7

85.2

63.9

121.4

6.23

4.01

11.8

12.1

93.3

78.2

97.4

4.42

6.19

12.1

12.3

12.1

5.2

5.1

4.6

5.2

5.1

12.1

94.9

80.0

97.7

4.36

6.38

12.3

11.7

92.5

75.5

107.3

4.99

5.43

12.7

10.7

89.4

69.0

121.9

5.99

4.37

12.5

12.1

99.6

83.8

98.3

4.63

6.30

13.4

11.7

97.1

79.0

107.9

5.30

5.37

13.0

4.6

5.2

5.1

4.6

5.2

5.1

10.7

12.1

11.7

10.7

12.1

11.7

93.9

102.8

100.3

96.9

104.5

101.9

72.2

87.4

82.7

75.7

89.3

84.5

122.5

98.7

108.4

122.9

98.9

108.6

6.37

4.51

5.15

6.20

4.46

5.09

4.32

6.68

5.71

4.58

6.87

5.87

12.6

13.8

13.3

13.0

13.9

13.6

4.642

10.7

98.5

77.6

123.1

6.12

4.72

13.1

Operation Not Recommended

ELT °F

50

40

45

50

40

45

50

40

40

45

50

40

45

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

45

50

40

45

50

40

45

50

50

40

45

50

40

45

50

40

40

45

50

40

45

Load

GPM

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

* See Page 13 for Application Notes

1. Capacity data includes water pumping watts and is based upon 15% (by volume) propylene glycol antifreeze solution.

2. Desuperheater capacity is based upon 0.4 GPM Flow per nominal ton at 90°F entering hot water temperature.

3. Interpolation between above catagories is permissible; extrapolation is not.

4. See Flow Rate Selection on page 7 for proper application.

Enertech Global

58

PSI

WPD

FT

Cooling

TC

Mbtuh

HR

Mbtuh

LLT

°F

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

Operation Not Recommended

kW EER

DH

Mbtuh

10.7

62.3

71.6

31.7

2.72

22.90

8.1

10.7

64.7

74.1

36.4

2.75

23.53

8.3

10.7

69.5

79.0

40.7

2.78

25.00

9.0

10.7

64.5

73.5

31.4

2.65

24.34

8.3

10.7

67.0

76.1

36.1

2.68

25.00

8.5

10.7

72.0

81.2

40.4

2.70

26.67

9.3

10.7

65.7

74.6

31.2

2.62

25.08

8.3

10.7

68.2

77.2

35.9

2.64

25.83

8.7

10.7

73.3

82.4

40.2

2.67

27.45

8.7

10.7

60.6

70.6

31.9

2.92

20.75

8.1

10.7

62.9

73.0

36.6

2.95

21.32

8.3

10.7

67.6

77.8

41.0

2.98

22.68

9.0

10.7

62.8

72.5

31.6

2.84

22.11

8.3

10.7

65.1

74.9

36.3

2.87

22.68

8.5

10.7

70.0

79.9

40.7

2.90

24.14

9.3

10.7

63.9

73.5

31.5

2.81

22.74

8.3

10.7

66.3

76.0

36.2

2.84

23.35

9.3

10.7

71.2

81.0

40.5

2.86

24.90

9.3

10.7

59.1

70.2

32.1

3.24

18.24

8.3

10.7

61.3

72.5

36.8

3.27

18.75

8.1

10.7

65.9

77.2

41.2

3.31

19.91

8.4

10.7

61.2

71.9

31.8

3.15

19.43

8.6

10.7

63.5

74.4

36.5

3.18

19.97

8.3

10.7

68.3

79.3

40.9

3.22

21.21

8.5

10.7

62.4

73.0

31.7

3.11

20.06

8.7

10.7

64.7

75.4

36.4

3.15

20.54

8.6

10.7

69.5

80.4

40.7

3.18

21.86

8.6

10.7

57.7

69.8

32.3

3.54

16.30

7.6

10.7

59.8

72.0

37.0

3.57

16.75

7.8

10.7

64.3

76.6

41.4

3.61

17.81

8.5

10.7

59.7

71.4

32.0

3.44

17.35

7.8

10.7

62.0

73.9

36.7

3.48

17.82

8.2

10.7

66.6

78.6

41.1

3.51

18.97

8.7

10.7

60.8

72.4

31.9

3.40

17.88

8.0

10.7

63.1

74.8

36.6

3.44

18.34

8.9

10.7

67.8

79.6

41.0

3.47

19.54

8.9

10.7

56.0

69.2

32.5

3.87

14.47

7.9

10.7

58.1

71.5

37.3

3.92

14.82

7.7

10.7

62.5

76.0

41.7

3.96

15.78

8.0

10.7

58.0

70.9

32.3

3.77

15.38

8.1

10.7

60.2

73.2

37.0

3.81

15.80

7.9

10.7

64.7

77.8

41.4

3.85

16.81

8.2

10.7

59.1

71.8

32.1

3.73

15.84

8.3

10.7

61.3

74.2

36.8

3.77

16.26

7.9

10.7

65.9

78.9

41.2

3.80

17.34

8.2

10.7

54.2

69.1

32.8

4.36

12.43

7.3

10.7

56.2

71.2

37.5

4.41

12.74

7.5

10.7

60.4

75.6

41.9

4.46

13.54

8.1

10.7

56.1

70.6

32.5

4.25

13.20

7.5

10.7

58.2

72.8

37.2

4.29

13.57

7.7

10.7

62.6

77.4

41.7

4.34

14.42

8.4

10.7

57.1

71.4

32.4

4.20

13.60

7.6

10.7

59.3

73.8

37.1

4.24

13.99

7.9

10.7

63.7

78.3

41.5

4.29

14.85

8.5

10.7

50.5

69.7

33.3

5.62

8.99

6.7

10.7

52.4

71.8

38.0

5.69

9.21

10.7

56.3

75.9

42.5

5.74

9.81

10.7

52.3

71.0

33.0

5.48

9.54

7.0

7.5

7.0

10.7

54.3

73.2

37.8

5.53

9.82

7.2

10.7

58.3

77.4

42.2

5.59

10.43

7.8

10.7

53.2

71.7

32.9

5.41

9.83

7.1

10.7

55.3

74.0

37.6

5.47

10.11

7.4

10.7

59.4

78.2

42.1

5.52

10.76

7.9

WT Models, Rev.: B

Section 11: Model 092 Cooling Performance Data: 8.0 Ton, Full Load Capacity

EST

°F

40

Flow

GPM

12.0

18.0

24.0

12.0

Source Water

PSID

1.3

2.6

4.4

1.2

WPD

FT

2.9

6.0

10.1

2.8

LST

°F

57.7

59.0

60.3

52.8

53.7

54.6

49.7

50.4

51.1

67.2

68.4

69.6

62.3

63.2

64.0

59.3

60.0

ELT

°F

40

45

50

40

45

50

40

45

50

45

50

40

45

40

45

50

40

50

40

45

50

45

50

40

45

Load Water

Flow

GPM PSID

4.0

WPD

24.0

3.9

3.9

4.0

3.9

3.9

4.0

3.9

3.9

3.9

3.9

4.0

3.9

4.0

3.9

3.8

4.0

3.9

3.9

4.0

3.9

3.9

4.0

3.9

3.8

4.0

3.8

4.0

3.9

3.9

3.9

3.9

4.0

3.9

FT

9.3

9.1

8.9

9.3

9.1

9.3

9.1

8.9

9.3

8.9

9.3

9.1

8.9

50

60

70

80

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

2.5

4.2

1.2

2.4

4.0

1.2

2.4

3.9

1.1

2.3

3.8

5.8

9.6

2.7

5.6

9.3

2.7

5.4

9.0

2.6

5.3

8.9

60.6

77.2

78.3

79.4

72.3

73.1

73.9

69.3

69.9

70.5

87.0

88.1

89.2

82.2

82.9

83.8

79.2

79.8

80.4

96.8

97.9

99.0

92.0

92.7

93.5

89.0

89.6

90.2

106.8

107.8

108.8

101.9

102.6

50

40

45

50

40

45

50

40

45

40

45

50

40

50

40

45

50

45

50

40

45

40

45

50

40

40

45

50

40

50

40

45

50

24.0

24.0

24.0

24.0

4.0

3.9

3.9

4.0

3.9

4.0

3.9

3.8

3.9

3.8

4.0

3.9

4.0

3.9

3.9

4.0

4.0

3.9

3.8

4.0

3.9

4.0

3.9

3.9

8.9

9.3

9.1

8.9

9.3

9.1

8.9

9.3

9.1

9.1

8.9

9.3

9.1

8.9

9.3

9.1

8.9

9.3

9.1

8.9

9.3

9.1

8.9

9.2

9.1

9.3

9.1

8.9

9.2

8.9

9.3

9.1

8.9

90

110

12.0

18.0

24.0

12.0

18.0

24.0

1.1

2.3

3.8

1.2

2.4

3.9

2.6

5.3

8.8

2.7

5.4

9.0

103.3

98.9

99.5

100.1

126.8

127.7

128.6

121.7

122.4

123.1

118.8

119.3

119.8

45

50

40

45

50

24.0

24.0

3.9

3.8

4.0

3.9

3.8

9.1

8.9

9.3

9.1

8.9

9.3

9.1

8.9

9.2

9.1

8.9

9.3

9.1

8.9

9.3

9.1

8.9

LST is based on 15% (by volume) methanol antifreeze solution only or 485 multiplier

42.8

33.2

37.6

42.1

33.0

37.5

41.9

34.1

38.6

43.2

33.5

38.0

42.5

33.4

37.9

42.3

38.7

43.3

34.1

38.6

43.2

Cooling

LLT

TC HR EER Discharge Suction Subcooling Superheat

°F MBtuh MBtuh kW Btuh/W PSIG PSIG °F °F

32.5

89.6

103.3

4.02

22.3

182.3

81.4

13.2

3.5

36.9

96.6

110.5

4.05

41.3

104.0

117.9

4.09

31.8

98.5

111.6

3.86

36.2

106.2

119.5

3.89

23.8

25.4

25.5

27.3

182.3

182.3

171.6

171.6

87.8

94.6

87.5

94.4

13.1

13.0

10.1

10.0

3.3

3.0

3.0

3.1

40.5

114.2

127.6

3.92

31.6

100.2

112.9

3.72

36.0

108.1

120.9

3.75

40.3

116.2

129.2

3.78

33.1

37.5

42.0

32.4

83.1

89.6

96.4

91.3

100.2

106.8

113.8

107.7

5.01

5.05

5.09

4.81

36.8

98.5

115.0

4.85

41.2

105.9

122.6

4.89

32.3

92.9

108.8

4.63

36.6

100.2

116.2

4.68

41.0

107.8

123.9

4.71

33.2

81.0

99.9

5.52

37.7

42.2

32.6

87.4

94.0

89.0

106.4

113.1

107.1

5.57

5.61

5.30

37.0

96.0

114.2

5.34

41.4

103.3

121.6

5.39

32.5

36.9

90.6

97.7

108.0

115.3

5.11

5.15

41.2

105.1

122.8

5.20

33.5

78.4

99.2

6.08

38.0

42.4

84.6

91.0

105.5

112.0

6.13

6.18

32.8

37.3

41.7

32.7

86.2

106.1

5.83

92.9

113.0

5.89

99.9

120.2

5.93

87.7

106.9

5.63

37.1

94.6

113.9

5.68

41.5

101.7

121.2

5.72

33.8

38.3

74.6

80.5

98.0

104.1

6.86

6.92

34.7

39.3

43.9

34.2

86.6

82.0

88.4

95.1

83.5

90.0

96.8

70.8

76.4

82.1

77.8

83.9

90.3

79.2

85.4

91.9

63.4

68.3

73.5

69.6

75.1

80.8

70.9

76.4

82.2

110.4

104.5

111.1

118.0

105.1

111.8

118.8

97.6

103.4

109.4

103.5

109.8

116.4

104.0

110.4

117.1

97.6

102.9

108.3

102.5

108.3

114.2

102.6

108.4

114.4

6.98

6.59

6.65

6.70

6.35

6.41

6.46

7.85

7.92

7.98

7.53

7.60

7.66

7.26

7.33

7.39

10.04

10.13

10.21

9.64

9.72

9.80

9.30

9.38

9.45

29.1

27.0

28.8

30.7

16.6

17.7

18.9

19.0

20.3

21.7

20.1

21.4

22.9

14.7

15.7

16.7

16.8

18.0

19.2

17.7

19.0

20.2

12.9

13.8

14.7

14.8

15.8

16.9

15.6

16.7

17.8

10.9

11.6

12.4

12.5

13.3

14.2

13.1

14.0

15.0

9.0

9.7

10.3

10.3

11.0

11.8

10.9

11.7

12.4

6.3

6.7

7.2

7.2

7.7

8.2

7.6

8.2

8.7

171.6

166.1

166.1

166.1

231.6

231.6

231.6

218.1

218.1

218.1

211.0

211.0

211.0

261.0

261.0

261.0

245.7

245.7

245.7

237.8

237.8

237.8

292.3

292.3

292.3

275.2

275.2

275.2

266.4

266.4

266.4

332.6

332.6

332.6

313.1

313.1

313.1

303.0

303.0

303.0

372.5

375.8

379.3

350.7

353.8

357.1

339.4

342.4

345.6

475.4

479.6

484.1

447.6

451.5

455.7

433.2

437.0

441.1

101.7

88.0

95.0

102.3

78.9

85.2

91.8

84.8

91.5

98.6

85.4

92.1

99.2

80.2

86.5

93.2

86.1

92.9

100.2

86.7

93.5

100.8

81.0

87.4

94.1

87.0

93.9

101.1

87.6

94.5

101.8

81.3

87.7

94.5

87.3

94.2

101.5

87.9

94.8

102.2

82.6

89.1

96.0

88.7

95.7

103.1

89.3

96.3

103.8

87.0

93.8

101.1

93.4

100.8

108.6

94.0

101.5

109.3

9.9

8.6

8.5

8.4

23.5

23.4

23.2

19.8

19.8

19.6

18.1

18.0

17.9

22.2

22.0

21.9

18.3

18.2

18.1

16.5

16.4

16.2

21.3

21.2

21.0

17.4

17.3

17.1

15.5

15.4

15.2

22.7

22.6

22.4

18.8

18.7

18.5

17.0

16.9

16.6

22.2

22.6

23.0

18.5

19.0

19.4

16.8

17.2

17.7

20.4

20.9

21.3

16.4

16.9

17.2

14.8

15.2

15.6

7.4

8.0

8.7

5.5

5.9

5.5

5.9

6.3

7.5

8.1

5.8

5.8

5.1

5.5

5.8

6.9

7.9

5.5

5.4

5.4

5.4

5.6

6.9

7.4

8.1

5.5

5.4

5.3

5.1

5.6

5.8

7.2

7.6

5.8

5.7

5.6

5.4

3.2

4.7

5.0

5.3

3.8

3.9

4.1

3.6

4.1

4.6

5.5

6.3

7.1

6.1

7.1

7.8

8.5

5.5

5.6

5.2

5.7

LLT is based on water only or 500 multiplier

Performance data accurate within ± 10%

Discharge pressure is ± 20 PSI; Suction pressure is ± 10 PSI

SubCooling is ± 5 °F; Superheat is ± 6 °F

WT Models, Rev.: B

59

Enertech Global

Section 11: Model 092 Heating Performance Data: 8.0 Ton, Full Load Capacity

EST

°F

25

30

40

50

60

70

80

Flow

GPM

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

Source Water

PSID

4.9

1.4

2.9

4.8

1.4

2.8

4.5

1.3

2.6

4.3

1.3

2.5

4.2

1.2

2.4

4.0

1.2

2.4

WPD

FT

11.2

3.3

6.7

11.0

3.1

6.4

10.5

3.0

6.1

10.0

2.9

5.8

9.6

2.8

5.6

9.3

2.7

5.5

48.9

50.4

50.7

51.5

52.8

53.6

55.1

42.7

45.0

45.8

47.3

47.3

47.8

39.3

39.0

39.5

40.5

41.6

42.0

31.9

32.7

33.1

33.8

37.1

37.9

60.7

61.5

63.1

63.9

64.4

65.6

55.6

56.1

57.2

59.0

59.4

60.2

21.5

22.7

21.9

22.4

23.3

23.8

LST

°F

19.5

19.9

20.5

20.8

24.2

24.8

29.0

29.7

31.0

30.5

31.0

ELT

°F

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

Flow

GPM

24.0

24.0

24.0

24.0

24.0

24.0

24.0

Load Water

WPD

PSID

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

3.2

3.1

3.0

FT

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

7.5

7.2

7.0

LLT

°F

92.2

102.1

117.0

91.5

101.5

116.4

92.8

102.8

117.6

92.9

102.8

117.6

92.5

HC HE

MBtuh MBtuh

86.3

63.5

85.7

83.7

78.5

78

76.2

94

93.4

91.2

94.5

93.9

91.7

89.4

102.4

117.2

88.8

86.8

93.9

107

103.9

106.4

59.6

52.4

53.8

49.7

42.3

70.3

66.2

58.7

71.6

67.7

60.3

64.3

60.0

52.4

82.9

78.8

24.0

12.0

3.9

1.1

9.0

2.7

67.8

68.2

69.0

68.6

69.5

71.1

85

95

110

85

95

110

3.2

3.1

3.0

3.2

3.1

3.0

7.5

7.2

7.0

7.5

7.2

7.0

98.9

167.3

142.4

108.9

166.3

137.8

7.30

8.36

123.5

162.4

128.2

10.02

97.7

152.1

124.6

8.06

107.6

151.1

119.6

9.24

122.3

147.6

109.9

11.06

90

18.0

2.3

5.4

72.2

72.7

73.9

85

95

110

24.0

3.2

3.1

3.0

7.5

7.2

7.0

100.2

182.1

155.7

110.1

180.9

150.6

7.73

8.87

124.7

176.7

140.5

10.62

24.0

3.8

8.9

76.5

76.9

85

95

3.2

3.1

7.5

7.2

100.3

183 157.5

110.2

181.8

152.6

7.46

8.55

77.7

110 3.0

7.0

LST is based on 15% (by volume) methanol antifreeze solution only or 485 multiplier

124.8

177.5

142.6

10.24

LLT is based on water only or 500 multiplier

Performance data accurate within ± 10%

Discharge pressure is ± 20 PSI; Suction pressure is ± 10 PSI

SubCooling is ± 5 °F; Superheat is ± 6 °F

8.30

9.93

6.94

7.96

9.53

6.70

kW

6.68

7.65

9.17

7.24

7.68

9.19

7.35

8.43

10.09

7.06

8.09

118.7

103.9

94.0

107.6

103.9

106.9

118.7

104.4

93.4

100.5

103.3

99.9

118.1

95.0

97.5

120.3

105.0

119.6

119.7

116.8

95.1

120.9

105.0

120.2

62.5

95.8

91.5

83.2

97.3

93.1

70.8

84.4

80.3

72.5

75.0

70.7

119.8

117.3

94.4

113.2

104.4

112.4

84.9

87.3

82.7

119.2

109.8

96.3

135.5

74.2

110.7

106.2

134.6

106.1

9.50

7.59

8.70

10.42

7.28

8.35

121.0

131.4

96.3

136.1

97.3

112.1

10.00

7.02

106.3

135.2

107.7

8.05

121.0

132.1

95.5

126.4

99.2

100.1

105.5

125.6

120.2

122.6

95.4

86.5

9.64

7.71

8.84

10.59

97.6

151.3

126.1

107.5

150.3

121.3

7.40

8.49

122.2

146.8

112.1

10.16

97.7

152 127.6

7.14

107.6

151.1

123.2

8.19

122.3

147.5

114.1

9.80

96.6

139.1

112.2

7.88

106.5

138.2

107.4

9.04

121.3

135 98.1

10.82

98.9

166.5

140.7

108.8

165.5

135.9

7.57

8.67

123.5

161.6

126.1

10.39

10.26

7.18

8.23

9.85

6.92

7.93

9.69

6.81

7.80

9.34

7.48

8.57

Heating

6.90

5.98

4.88

7.19

6.23

5.08

6.72

5.83

4.75

5.53

4.79

3.91

348.2

397.4

475.5

337.0

384.6

460.2

376.3

429.5

513.9

354.3

404.3

483.8

466.4

330.5

377.2

451.4

369.8

422.1

505.1

5.17

4.48

3.66

6.45

5.59

4.56

5.99

5.19

4.23

6.24

5.41

4.41

3.85

5.68

4.92

4.02

4.80

4.16

3.39

3.62

4.37

3.79

3.09

5.45

4.72

2.79

4.91

4.26

3.48

5.12

4.44

3.14

4.63

4.02

3.28

3.94

3.42

3.44

2.80

4.13

3.58

2.92

3.56

COP Discharge Suction Subcooling Superheat

W/W PSIG PSIG °F °F

3.79

3.28

2.68

3.18

308.7

352.4

421.6

342.9

65.9

68.4

70.7

68.9

14.6

14.2

12.7

20.8

8.1

6.6

5.6

6.4

2.75

2.25

3.97

391.4

468.3

322.8

71.4

73.8

74.0

19.9

18.6

17.0

4.9

3.8

5.4

3.09

2.52

4.44

3.85

368.5

440.9

312.4

356.6

426.7

349.3

398.6

477.0

328.8

375.3

76.7

79.3

74.5

77.2

79.8

81.9

84.9

87.7

87.9

91.2

16.3

14.7

15.2

14.7

13.1

21.8

20.8

19.6

18.0

17.3

449.1

318.2

363.2

434.6

355.7

405.9

94.3

88.5

91.8

94.9

95.2

98.7

15.7

16.2

15.6

14.0

22.7

21.6

3.9

2.9

6.8

5.3

4.3

5.7

4.2

3.3

5.4

4.0

3.1

7.3

5.8

5.0

5.8

4.3

485.7

334.9

382.2

457.3

324.1

369.9

442.6

362.7

414.0

495.4

341.5

389.8

102.0

102.2

106.0

109.6

102.9

106.7

110.3

110.1

114.2

118.0

118.3

122.7

20.6

18.9

18.1

16.5

17.2

16.4

14.8

23.4

22.2

21.4

19.7

18.6

6.6

5.8

4.4

3.7

7.0

5.6

3.6

6.3

4.8

4.1

8.6

7.2

342.9

391.3

468.2

382.8

436.9

522.8

360.4

411.3

492.2

348.8

398.1

476.3

126.8

119.1

123.4

127.6

125.8

130.5

134.9

135.2

140.2

144.9

136.1

141.1

145.9

141.3

146.5

151.4

151.8

157.4

162.7

152.8

158.4

163.8

157.0

162.8

168.3

168.7

174.9

180.8

169.8

176.0

182.0

17.1

17.9

17.0

15.4

23.8

22.5

21.9

20.1

18.9

17.4

18.3

17.3

15.6

23.9

22.5

22.1

20.3

18.9

17.5

18.5

17.3

15.6

24.0

22.4

22.2

20.3

18.8

17.5

18.6

17.2

15.5

8.7

7.2

6.8

11.7

10.2

9.9

9.7

8.3

7.9

13.6

12.2

12.0

16.1

14.6

14.5

4.2

8.0

6.6

6.2

11.4

10.0

9.7

7.3

5.9

5.4

5.0

9.9

8.5

8.0

6.2

4.8

Enertech Global

60

WT Models, Rev.: B

Section 11: Model 120 Cooling Performance Data: 10.0 Ton, Full Load Capacity

EST

°F

40

50

60

70

80

Flow

GPM

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

Source Water

PSID

2.0

4.0

6.7

1.9

3.9

6.4

1.8

3.7

6.2

1.8

3.6

6.0

1.8

3.6

5.9

1.7

WPD

FT

4.5

9.3

15.5

4.4

8.9

14.8

4.2

8.6

14.3

4.1

8.4

13.9

4.0

8.2

13.6

4.0

91.5

87.8

88.4

88.9

104.8

105.7

78.4

79.0

94.8

95.8

96.7

90.2

90.9

85.8

86.8

80.2

80.9

81.6

77.9

70.2

71.0

71.7

67.9

68.4

69.0

84.8

57.9

58.5

59.0

74.8

75.8

76.8

64.7

65.8

66.8

60.2

61.0

61.7

LST

°F

54.7

55.7

56.8

50.2

50.9

51.7

47.9

48.4

49.0

ELT

°F

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

50

40

45

Load Water

Flow

GPM PSID

6.1

6.0

WPD

LLT TC HR EER

FT °F MBtuh MBtuh kW Btuh/W

14.1

33.9

91.5

106.7

4.44

20.6

13.8

38.4

99.0

114.3

4.47

22.2

30.0

5.9

6.1

6.0

5.9

6.1

6.0

5.9

13.5

14.1

13.8

42.9

33.5

38.0

106.8

96.9

104.9

122.1

111.2

119.3

4.50

4.20

4.23

13.6

42.5

113.0

127.6

4.26

14.1

33.3

100.6

114.6

4.11

13.8

37.7

108.8

122.9

4.13

13.6

42.2

117.3

131.5

4.17

23.7

23.1

24.8

26.5

24.5

26.3

28.2

30.0

6.1

6.0

5.9

6.1

6.0

5.9

6.1

6.0

5.9

6.1

6.0

5.9

14.1

13.8

13.5

34.0

38.5

43.0

90.1

97.4

105.0

107.3

114.8

122.5

5.05

5.08

5.12

14.1

33.6

95.3

111.6

4.78

13.8

38.1

103.1

119.5

4.80

13.5

42.6

111.2

127.7

4.84

14.1

33.4

98.9

114.9

4.67

13.8

37.9

107.0

123.1

4.70

13.5

42.3

115.4

131.5

4.73

14.1

34.1

88.0

107.7

5.76

13.8

38.7

95.2

115.0

5.80

13.5

43.2

102.6

122.5

5.84

30.0

30.0

30.0

5.9

6.1

6.0

5.9

6.1

6.0

6.0

5.9

6.1

6.0

5.9

6.1

6.0

6.0

5.9

6.1

6.0

5.9

6.1

6.1

6.0

5.9

6.1

6.0

5.9

6.1

14.1

13.8

13.5

14.1

13.8

13.5

14.1

14.1

14.1

14.1

13.8

13.8

33.8

38.3

42.8

33.6

38.0

42.5

34.3

34.0

33.8

34.5

38.5

39.4

93.1

100.8

108.6

96.6

104.6

112.7

85.3

90.3

93.7

82.1

97.6

84.7

111.7

119.5

127.5

114.8

122.9

131.2

107.8

111.6

114.5

107.8

121.5

114.1

5.45

5.48

5.53

5.33

5.36

5.41

6.59

13.8

38.8

92.3

115.0

6.63

13.5

43.4

99.5

122.3

6.68

6.23

13.8

38.5

97.7

119.1

6.27

13.5

43.0

105.4

126.9

6.32

6.10

13.8

38.2

101.4

122.4

6.13

13.5

42.7

109.3

130.4

6.18

7.52

13.8

39.1

88.8

114.7

7.57

13.5

43.6

95.8

121.8

7.63

14.1

34.2

86.9

111.2

7.12

13.8

38.7

94.1

118.5

7.16

13.5

43.2

101.4

126.0

7.21

14.1

34.0

90.2

114.0

6.96

7.00

13.5

43.0

105.2

129.3

7.06

14.1

34.8

78.3

107.6

8.57

8.62

90

110

22.5

30.0

15.0

22.5

3.6

5.9

1.8

3.6

8.2

13.6

4.1

8.4

98.8

124.6

125.4

126.3

119.9

120.5

121.1

106.6

100.1

100.8

101.4

97.8

98.3

40

45

50

50

40

45

50

50

40

45

50

40

45

30.0

30.0

5.9

6.1

6.0

5.9

6.1

6.0

5.9

5.9

6.1

6.0

5.9

6.1

6.0

13.5

43.9

91.3

121.0

8.68

14.1

34.5

82.9

110.6

8.10

13.8

39.0

89.7

117.5

8.15

13.5

43.6

96.7

124.7

8.21

14.1

34.3

86.0

113.1

7.93

13.8

38.8

93.1

120.3

7.97

13.5

43.3

100.3

127.7

8.03

14.1

35.4

69.0

106.5

10.99

13.8

40.0

74.6

112.3

11.05

13.5

44.6

80.4

118.4

11.13

14.1

35.1

73.0

108.5

10.39

13.8

39.7

79.0

114.7

10.45

13.5

44.3

85.2

121.1

10.53

30.0

6.0

13.8

117.6

118.0

118.5

40

45

50

6.1

6.0

5.9

14.1

13.8

13.5

34.9

39.5

44.1

LST is based on 15% (by volume) methanol antifreeze solution only or 485 multiplier

75.8

82.0

88.4

110.5

116.9

123.5

10.16

10.22

10.30

LLT is based on water only or 500 multiplier

Performance data accurate within ± 10%

Discharge pressure is ± 20 PSI; Suction pressure is ± 10 PSI

SubCooling is ± 5 °F; Superheat is ± 6 °F

14.1

13.0

13.9

14.9

9.1

9.8

16.5

17.7

10.9

11.7

12.6

12.2

13.1

13.9

14.9

14.5

15.6

16.7

15.4

17.1

18.4

19.7

18.1

19.5

20.9

13.0

21.2

22.8

24.4

15.3

16.4

17.6

17.8

19.2

20.5

20.0

21.5

23.0

12.5

6.3

6.8

7.2

7.0

7.6

8.1

10.5

10.2

11.0

11.8

10.9

11.7

7.5

8.0

8.6

352.4

336.2

339.0

342.1

464.4

468.2

472.5

301.3

365.5

368.5

371.8

346.4

349.2

440.1

443.7

447.7

427.2

430.7

434.6

84.2

91.1

82.7

89.9

97.2

85.3

92.8

88.9

96.2

84.5

91.8

99.4

77.5

90.8

98.3

76.7

83.3

90.2

81.8

75.8

82.4

89.2

80.9

88.0

95.2

83.6

327.6

327.6

310.4

310.4

310.4

301.3

301.3

271.0

271.0

263.0

263.0

263.0

327.6

227.9

227.9

285.9

285.9

285.9

271.0

247.7

247.7

247.7

234.8

234.8

234.8

227.9

Cooling

Discharge Suction Subcooling Superheat

PSIG

181.9

181.9

181.9

172.4

172.4

PSIG

66.5

72.3

78.2

71.0

77.2

°F

19.1

19.0

18.8

16.3

16.1

°F

15.5

15.4

15.5

15.1

15.3

201.9

201.9

201.9

196.0

196.0

196.0

172.4

167.4

167.4

167.4

213.1

213.1

213.1

83.5

73.3

79.6

86.2

73.3

79.7

86.2

78.2

85.1

92.0

80.8

87.8

95.0

15.9

14.7

14.6

14.4

19.4

19.1

18.9

16.2

16.0

15.8

14.6

14.4

14.1

10.2

10.3

10.6

10.5

10.7

11.3

15.7

15.4

15.8

16.4

10.6

10.4

10.5

20.5

20.2

17.3

17.0

16.6

15.4

15.1

16.7

16.4

15.1

14.8

14.5

20.8

14.5

14.2

20.6

20.3

20.0

17.0

19.9

19.7

19.4

16.5

16.3

16.0

14.7

8.3

8.4

8.1

8.2

8.5

8.4

8.7

8.4

8.7

8.6

8.9

9.5

8.5

9.2

9.7

8.8

8.6

8.6

8.3

9.1

8.9

8.9

8.7

8.7

9.0

8.9

99.1

86.9

94.5

102.3

82.1

89.3

96.6

100.4

78.9

85.8

92.8

84.2

91.6

87.7

95.3

103.1

90.5

98.4

106.5

16.1

13.8

14.0

14.3

16.4

16.6

16.8

14.8

19.0

19.2

19.4

15.6

15.8

12.9

13.0

13.2

11.1

11.3

11.4

7.9

7.7

8.0

8.6

7.1

7.1

7.2

9.2

7.8

7.7

7.7

7.4

7.5

6.8

7.0

7.5

7.1

7.6

8.3

WT Models, Rev.: B

61

Enertech Global

Section 11: Model 120 Heating Performance Data: 10.0 Ton, Full Load Capacity

EST

°F

25

30

40

50

60

70

80

90

Flow

GPM

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

15.0

22.5

30.0

Source Water

PSID

7.5

2.2

4.4

7.3

2.1

4.2

7.0

2.0

4.0

6.7

1.9

3.9

6.4

1.9

3.7

6.2

1.8

3.6

6.0

1.8

3.6

5.9

WPD

FT

17.3

5.1

10.2

16.9

4.8

9.8

16.1

4.6

9.3

15.4

4.4

9.0

14.7

4.3

8.6

14.2

4.2

8.4

13.9

4.1

8.3

13.6

58.2

59.2

60.4

60.8

61.6

60.3

61.3

62.9

51.9

52.7

52.4

53.3

54.8

57.6

43.7

44.5

45.3

46.8

49.0

49.6

50.5

51.5

38.7

40.4

41.0

41.9

42.6

43.0

68.2

69.2

70.9

74.7

75.3

76.5

78.2

78.7

79.5

66.1

66.7

67.8

69.3

69.8

70.6

33.2

33.7

34.0

34.7

36.5

37.3

24.7

25.1

25.7

28.5

29.3

30.6

31.8

32.3

20.5

21.2

22.5

23.2

23.7

24.5

LST

°F

20.3

20.6

21.2

LST is based on 15% (by volume) methanol antifreeze solution only or 485 multiplier

LLT is based on water only or 500 multiplier

Performance data accurate within ± 10%

Discharge pressure is ± 20 PSI; Suction pressure is ± 10 PSI

SubCooling is ± 5 °F; Superheat is ± 6 °F

95

110

85

95

110

85

95

110

95

110

85

95

110

85

110

85

95

110

85

95

110

85

110

85

95

110

85

95

85

95

110

85

95

110

85

95

110

85

95

110

85

95

110

110

85

95

110

85

95

85

95

110

85

95

110

85

95

85

95

110

85

95

110

ELT

°F

85

95

110

30.0

30.0

30.0

30.0

30.0

4.8

4.7

5.0

4.8

4.7

5.0

4.9

4.7

4.9

4.7

5.0

4.9

4.7

5.0

4.7

5.0

4.9

4.7

5.0

4.9

4.7

5.0

4.7

5.0

4.9

4.7

5.0

4.9

4.6

5.0

4.8

4.6

5.0

4.8

4.7

5.0

4.8

5.0

4.8

4.6

5.0

4.8

4.6

Flow

GPM

Load Water

WPD

30.0

PSID

5.0

4.9

4.7

FT

11.6

11.3

10.8

30.0

5.0

4.9

4.7

5.0

4.9

4.7

11.6

11.3

10.8

11.6

11.2

10.8

30.0

4.7

5.0

4.9

4.7

5.0

4.9

5.0

4.9

4.7

5.0

4.9

4.7

5.0

4.9

10.8

11.6

11.2

10.8

11.6

11.2

11.6

11.2

10.8

11.6

11.3

10.8

11.6

11.2

11.5

11.2

10.7

11.5

11.1

10.7

11.5

11.1

10.7

11.5

11.2

10.7

11.5

11.2

10.7

11.2

10.7

11.5

11.2

10.7

11.5

11.2

10.7

11.2

10.8

11.5

11.2

10.8

11.5

10.8

11.6

11.2

10.8

11.5

11.2

10.8

11.5

10.8

11.5

11.2

10.8

11.5

11.2

LLT

°F

91.2

101.1

HC HE

MBtuh MBtuh kW

93.4

92

115.9

89.2

68.7

63.8

55.4

7.24

8.26

9.92

91.4

96.2

101.3

94.7

116.1

91.8

69.1

63.8

54.7

7.94

9.06

10.88

91.7

99.8

101.6

98.3

116.4

95.3

91.8

101.8

101.7

100.3

116.5

97.2

74.2

69.1

7.51

8.57

60.2

10.29

76.7

71.7

7.35

8.38

62.8

10.07

92.4

111

102.3

109.3

117.1

92.7

106

115.2

102.6

113.4

117.3

110

92.8

117.5

102.7

115.7

83.5

78.0

8.05

9.18

68.4

11.03

89.2

7.61

83.7

8.69

74.4

92.1

86.7

10.43

7.45

8.50

117.5

112.2

93.4

125.9

103.3

124

77.4

10.20

98.1

8.16

92.2

9.31

118.0

120.2

93.7

130.6

82.1

104.3

11.18

7.72

103.6

128.7

98.7

8.80

118.3

124.8

93.9

133.3

88.7

107.5

10.57

7.55

103.8

131.3

101.9

8.61

118.5

127.3

92.0

10.34

94.4

141.4

113.0

8.32

104.3

139.3

106.9

9.49

119.0

135 96.1

11.40

94.8

146.7

119.8

7.87

104.6

144.5

113.9

8.98

119.3

140.1

103.3

10.78

95.0

149.6

123.3

7.70

104.8

147.4

117.4

8.78

119.5

142.9

106.9

10.55

95.5

157 128.1

8.48

105.3

154.7

121.7

9.68

120.0

150 110.4

11.62

95.9

162.9

135.5

8.02

105.7

160.5

129.3

9.15

120.4

155.6

118.1

10.99

96.1

166.2

139.4

7.85

105.9

163.7

133.2

8.95

120.6

158.7

122.0

10.75

96.5

172.5

143.2

8.60

106.3

169.9

136.4

9.81

121.0

164.8

124.6

11.78

96.9

179 151.3

8.13

106.8

176.3

144.6

9.28

121.4

170.9

132.9

11.15

97.2

182.6

155.4

7.96

107.0

179.9

148.9

9.08

121.6

174.4

137.2

10.90

97.5

188.1

158.3

8.72

107.4

185.3

151.3

9.95

122.0

179.6

138.8

11.95

98.0

195.1

166.9

8.25

107.8

192.2

160.1

9.41

122.4

186.4

147.8

11.30

98.3

199.1

171.6

8.07

108.1

196.1

164.7

9.20

122.7

190.1

152.4

11.05

5.88

5.08

4.10

6.45

5.57

4.49

4.68

3.78

5.95

5.14

4.15

6.20

5.36

4.33

4.72

3.81

5.69

4.92

3.97

5.43

3.46

5.17

4.47

3.61

4.98

4.30

3.47

5.46

6.72

5.81

4.69

6.32

5.46

4.40

6.93

5.99

4.83

7.23

6.25

5.04

3.22

4.52

3.90

3.15

4.96

4.29

4.04

3.49

2.82

4.44

3.82

3.09

4.62

3.99

3.89

3.36

2.71

4.06

3.51

2.83

COP

W/W

3.78

3.26

2.64

3.55

3.06

2.47

Heating

370.0

421.2

502.1

350.7

399.2

475.9

340.4

387.5

461.9

376.1

428.2

510.4

356.5

405.8

483.7

346.0

393.9

469.5

384.9

458.9

328.2

373.6

445.4

364.0

414.3

493.9

344.9

392.6

468.1

334.8

381.1

454.3

Discharge Suction Subcooling Superheat

PSIG PSIG °F °F

306.7

349.1

62.6

64.2

13.1

12.9

8.8

7.9

416.2

337.9

384.6

458.5

66.0

64.5

66.1

68.0

10.8

19.0

18.4

16.3

7.3

9.4

8.5

8.0

320.2

364.5

434.5

310.8

353.8

421.7

68.8

70.6

72.5

71.0

72.9

74.9

15.4

15.1

12.9

13.6

13.3

11.1

8.4

7.5

7.0

8.3

7.4

7.0

8.3

343.8

391.3

466.5

325.8

370.9

442.1

316.2

360.0

429.1

349.7

398.1

474.6

331.4

377.3

449.7

321.7

366.2

436.5

356.8

406.2

484.2

338.2

78.2

80.2

82.4

83.5

85.6

88.0

86.2

88.4

90.8

92.0

94.4

97.0

98.2

100.7

103.5

101.3

104.0

106.8

106.4

109.2

112.2

113.6

19.5

18.8

16.7

16.0

15.5

13.2

14.1

13.7

11.4

20.0

19.2

17.2

16.5

15.9

13.5

14.7

14.1

11.8

20.6

19.7

17.8

17.2

7.3

7.0

7.8

6.9

6.7

8.1

7.2

7.1

8.2

7.3

7.2

8.3

7.5

7.5

9.0

8.2

8.3

9.0

8.1

8.3

9.7

116.5

119.7

117.2

120.3

123.6

120.9

124.1

127.5

129.1

132.4

136.1

133.2

136.7

140.5

16.4

14.1

15.4

14.7

12.2

21.3

20.3

18.6

17.9

17.0

14.7

16.1

15.3

12.8

9.4

9.8

11.6

10.8

11.3

13.2

12.4

8.9

9.2

10.9

10.1

10.5

10.2

13.0

11.5

10.7

11.3

135.0

138.5

142.4

144.1

147.8

151.9

148.8

152.6

156.8

149.1

153.0

157.2

159.2

163.3

167.8

164.3

168.6

173.2

16.7

15.8

13.4

22.6

21.4

20.2

19.2

18.1

21.9

20.8

19.4

18.5

17.5

15.3

16.0

17.4

16.4

14.0

13.4

12.6

13.3

15.3

14.6

15.4

13.0

12.3

13.0

15.4

14.7

15.6

17.7

17.0

18.0

Enertech Global

62

WT Models, Rev.: B

Section 11: Model 144 Performance Data: 12.0 Ton, Part Load Capacity

EST GPM PSI

30

50

70

90

110

10.0

14.0

18.0

10.0

14.0

18.0

10.0

14.0

18.0

10.0

14.0

18.0

10.0

14.0

18.0

2.2

4.0

6.5

2.0

3.7

6.0

2.0

3.6

5.8

1.9

3.3

5.3

1.8

3.3

5.3

FT

5.0

9.3

15.0

4.7

8.6

14.0

4.7

8.3

13.3

4.3

7.7

12.3

4.2

7.7

12.1

110

85

95

110

95

110

85

95

85

95

110

85

110

85

95

110

85

95

110

85

95

110

95

110

85

95

85

95

110

85

ELT

85

95

110

85

95

110

93.7

90.2

99.7

96.1

92.5

106.6

102.7

98.8

92.5

89.2

85.9

97.1

74.2

80.8

78.2

75.6

112.7

108.6

104.3

116.5

112.0

107.6

73.7

71.2

79.2

76.6

61.3

59.7

58.1

76.0

HC

58.8

57.1

55.3

60.5

58.9

57.3

108.4

122.9

96.1

105.7

120.3

106.3

115.5

129.7

120.6

94.0

103.7

118.4

103.5

112.8

127.2

98.9

101.1

110.5

124.9

97.9

107.4

122.0

91.8

101.6

116.5

100.2

109.7

124.2

96.3

106.0

LLT

96.7

106.4

121.0

93.7

103.4

118.2

6.57

5.67

6.41

6.59

6.19

6.51

5.95

6.26

5.71

6.01

6.30

5.88

6.06

5.50

5.79

6.09

6.22

6.55

6.88

6.32

6.64

6.98

5.66

5.93

5.48

5.77

5.18

5.45

5.73

5.37

Heating

KW

5.13

5.40

5.66

5.18

5.46

5.73

71.5

87.6

82.5

77.6

73.8

69.4

80.7

76.1

74.3

70.1

65.8

78.3

54.6

63.3

59.7

56.1

92.9

87.6

82.4

96.1

90.7

85.3

55.4

52.2

61.7

58.2

44.8

42.3

39.7

58.9

HE

42.2

39.7

37.4

44.0

41.3

38.9

Operation Not Recommended

ELT

45

50

40

45

40

45

50

40

50

40

45

50

45

50

40

45

40

45

50

50

40

45

50

40

45

50

40

50

40

45

50

40

45

50

40

45

TC

59.2

63.9

46.0

50.0

53.8

58.5

63.3

54.5

69.8

52.8

57.4

62.0

64.0

69.1

59.4

64.7

54.1

47.2

51.4

55.5

47.7

51.9

56.0

58.0

63.0

68.1

58.9

73.3

63.1

68.6

74.1

61.9

67.2

72.6

62.5

67.9

13.0

13.3

13.6

13.9

12.4

12.7

12.4

12.7

11.5

11.8

12.1

12.1

10.4

10.1

10.3

10.6

14.0

14.4

14.6

14.5

14.8

15.1

9.7

10.0

9.9

10.1

7.6

7.9

8.2

9.5

DH

7.3

7.5

7.8

7.5

7.8

8.0

4.13

5.52

4.70

4.39

4.44

4.06

4.92

4.50

4.75

4.35

4.00

4.84

3.58

4.31

3.96

3.64

5.31

4.86

4.45

5.40

4.94

4.52

3.82

3.52

4.24

3.89

3.47

3.21

2.97

4.15

COP

3.36

3.10

2.86

3.42

3.16

2.93

HR

Cooling

KW LLT

Operation Not Recommended

73.1

77.5

64.9

69.1

68.6

73.0

77.3

68.7

80.6

68.2

72.6

77.0

75.8

80.4

71.6

76.2

73.2

65.2

69.3

73.5

65.2

69.3

73.5

70.9

75.4

80.0

71.2

82.4

73.5

78.2

82.8

72.8

77.5

82.1

73.1

77.7

4.96

5.07

6.61

6.70

4.99

5.12

5.19

4.87

4.13

5.31

5.41

5.50

4.17

4.25

3.96

4.04

6.87

6.19

6.33

6.50

6.06

6.14

6.25

4.29

4.39

4.47

4.09

3.55

3.31

3.38

3.45

3.57

3.65

3.73

3.41

3.48

38.4

42.9

30.8

35.0

32.3

36.6

41.0

33.9

42.2

29.4

33.5

37.6

35.8

40.1

33.4

37.8

39.2

33.3

37.6

42.1

34.7

39.2

43.8

28.4

32.4

36.4

31.6

39.5

33.0

37.4

41.8

27.6

31.6

35.5

31.1

35.3

* See Page 13 for Application Notes

EER

11.9

12.6

7.0

7.5

10.8

11.4

12.2

11.2

16.9

9.9

10.6

11.3

15.3

16.2

15.0

16.0

7.9

8.5

9.0

7.9

7.6

8.1

8.5

13.5

14.3

15.3

14.4

20.6

19.1

20.3

21.5

17.3

18.4

19.5

18.3

19.5

DH

9.4

9.7

12.2

12.6

9.5

9.8

10.0

9.1

7.4

9.9

10.2

10.4

7.5

7.6

6.9

7.1

13.0

11.8

12.2

12.4

11.3

11.7

12.1

7.5

7.7

8.0

7.2

5.2

4.7

4.8

5.0

5.2

5.3

5.5

5.0

5.1

WT Models, Rev.: B

63

Enertech Global

Section 11: Model 144 Performance Data: 12.0 Ton, Full Load Capacity

EST GPM PSI

30

50

70

90

110

17.8

24.9

32.0

17.8

24.9

32.0

17.8

24.9

32.0

17.8

24.9

32.0

17.8

24.9

32.0

2.3

4.4

7.0

2.2

4.1

6.6

2.2

3.9

6.2

2.0

3.6

5.8

2.0

3.6

5.7

FT

5.4

10.1

16.2

5.0

9.4

15.1

5.0

9.0

14.4

4.7

8.3

13.3

4.5

8.3

13.2

110

85

95

110

95

110

85

95

85

95

110

85

110

85

95

110

85

95

110

85

95

110

95

110

85

95

85

95

110

85

ELT

85

95

110

85

95

110

12.37

13.02

11.89

12.51

13.14

11.33

12.82

13.19

12.13

11.01

11.59

12.17

11.42

12.01

12.60

11.76

12.44

13.10

13.75

12.64

13.29

13.95

10.36

10.91

11.45

10.75

11.32

11.87

10.95

11.54

Heating

KW

10.26

10.81

11.33

10.37

10.92

11.47

147.6

138.7

161.4

152.2

143.1

175.2

165.0

155.2

109.3

126.6

119.4

112.2

148.6

140.1

131.6

156.5

185.7

175.2

164.7

192.3

181.4

170.6

89.6

84.7

79.4

117.8

110.9

104.3

123.4

116.5

HE

84.3

79.4

74.8

87.9

82.7

77.8

110.1

124.5

97.5

107.0

121.6

109.0

118.1

132.2

121.9

95.1

104.8

119.4

105.8

115.1

129.3

100.6

103.1

112.5

126.8

99.6

109.0

123.5

92.7

102.5

117.3

102.1

111.6

126.0

97.7

107.3

LLT

98.2

107.8

122.4

94.7

104.5

119.2

187.3

180.5

199.5

192.3

185.1

213.3

205.4

197.5

148.3

161.7

156.5

151.2

185.0

178.4

171.8

194.2

225.4

217.2

208.7

233.0

224.1

215.2

122.6

119.4

116.2

152.0

147.5

142.5

158.5

153.2

HC

117.5

114.2

110.6

121.1

117.7

114.5

Operation Not Recommended

ELT

9.99

10.23

10.38

9.73

9.91

10.14

13.22

13.40

8.35

8.51

7.92

8.08

8.25

10.62

10.82

11.00

13.73

12.38

12.65

13.00

12.11

12.28

12.51

8.59

8.79

8.93

8.17

7.11

6.62

6.76

6.90

7.14

7.30

7.45

6.82

6.97

137.2

145.9

154.6

137.5

146.2

155.1

129.8

138.3

151.5

160.7

143.1

152.3

161.2

136.5

145.1

154.1

146.4

130.4

138.5

146.9

130.4

138.5

146.9

164.8

146.9

156.4

165.6

141.8

150.8

159.9

142.3

145.7

155.1

164.3

146.2

155.4

107.6

117.1

126.5

108.9

118.4

127.8

92.1

100.0

128.1

138.3

118.9

129.3

139.5

105.6

114.8

124.0

108.2

94.4

102.8

111.0

95.4

103.8

112.0

146.7

126.3

137.2

148.2

116.1

126.0

136.2

117.9

123.7

134.4

145.1

125.0

135.7

45

50

40

45

40

45

50

40

50

40

45

50

45

50

40

45

40

45

50

50

40

45

50

40

45

50

40

50

40

45

50

40

45

50

40

45

26.0

26.6

27.2

27.7

24.8

25.3

24.8

25.4

23.0

23.6

24.1

24.2

20.8

20.1

20.7

21.2

28.1

28.7

29.3

29.0

29.6

30.2

19.5

20.0

19.7

20.3

15.3

15.8

16.3

18.9

DH

14.6

15.1

15.5

15.1

15.6

16.1

4.13

5.52

4.70

4.39

4.44

4.06

4.92

4.50

4.75

4.35

4.00

4.84

3.58

4.31

3.96

3.64

5.31

4.86

4.45

5.40

4.94

4.52

3.82

3.52

4.24

3.89

3.47

3.21

2.97

4.15

COP

3.36

3.10

2.86

3.42

3.16

2.93

TC HR

Cooling

KW LLT

Operation Not Recommended

37.6

42.0

29.6

33.8

31.3

35.6

39.8

33.2

41.3

28.1

32.1

36.1

34.7

38.9

32.6

36.9

37.8

32.4

36.7

41.1

34.0

38.5

43.0

27.0

30.8

34.7

30.5

38.2

32.1

36.4

40.7

26.1

29.9

33.7

29.9

34.1

* See Page 13 for Application Notes

EER

11.9

12.6

7.0

7.5

10.8

11.4

12.2

11.2

16.9

9.9

10.6

11.3

15.3

16.2

15.0

16.0

7.9

8.5

9.0

7.9

7.6

8.1

8.5

13.5

14.3

15.3

14.4

20.6

19.1

20.3

21.5

17.3

18.4

19.5

18.3

19.5

DH

18.8

19.3

24.4

25.2

19.1

19.6

20.1

18.3

14.7

19.8

20.3

20.8

15.0

15.2

13.7

14.2

25.9

23.6

24.4

24.9

22.6

23.4

24.1

15.0

15.5

16.0

14.5

10.4

9.4

9.7

9.9

10.4

10.7

10.9

9.9

10.2

Enertech Global

64

WT Models, Rev.: B

Section 11: Air Handler and “A” Coil Performance Data

Air Handler / “A” Coil Capacities

Hot Water Heating Capacity -- 68°F EAT (DB)

Model GPM

WPD

Ft Hd

Htg Cap

Btuh

MPH/

ACH024

789

MPH/

ACH036 1058

MPH/

ACH048 1564

MPH/

ACH060 1952

100

105

110

115

120

100

105

110

115

120

100

105

110

115

120

115

120

100

105

110

3.0

4.5

6.0

7.5

1.8

1.9

1.9

1.9

1.9

1.9

1.9

1.8

1.8

2.4

2.3

4.0

3.9

3.9

3.8

3.7

1.8

2.5

2.4

2.4

LAT

°F

83.9

88.7

93.6

98.5

103.4

83.6

88.6

93.6

98.6

103.6

83.0

87.8

92.5

97.3

102.0

84.5

89.2

94.0

98.7

103.5

13,526

17,677

21,829

25,980

30,131

17,808

23,527

29,246

34,965

40,684

25,339

33,373

41,407

49,441

57,474

34,801

44,796

54,791

64,785

74,779

Air Handler / “A” Coil Corrections

Model

Airflow Correction Factors

CFM

Heating

Capacity

Tot Cooling

Capacity

Sensible

Capacity

MPH/

ACH024

MPH/

ACH036

MPH/

ACH048

MPH/

ACH060

880

789

690

584

1058

1023

831

657

1952

1761

1564

1385

1952

1761

1564

1385

1.047

1.000

0.949

0.895

1.000

0.987

0.913

0.846

1.101

1.051

1.000

0.954

1.000

0.960

0.919

0.882

1.046

1.000

0.950

0.897

1.000

0.987

0.915

0.850

1.098

1.050

1.000

0.955

1.000

0.961

0.921

0.885

1.074

1.000

0.920

0.833

1.000

0.979

0.862

0.757

1.159

1.081

1.000

0.927

1.000

0.937

0.873

0.814

Chilled Water Cooling Capacity -- 80/67°F EAT (DB/WB)

Model GPM

WPD

Ft Hd

TC

Btuh

SC

Btuh

MPH/

ACH024

800

MPH/

ACH036 1200

45

45

3.5

4.0

2.1

3.3

32,350

41,540

22,190

30,430

MPH/

ACH048 1600

MPH/

ACH060 2000

45

45

5.5

7.0

5.5

8.4

51,940

63,750

38,600

47,340

Air Handler / “A” Coil Corrections

50

55

60

65

68

Heating

EAT

°F (DB)

Heating

Capacity

1.038

1.028

1.018

1.007

1.000

EAT

°F (WB)

50

55

60

65

67

Entering Air Correction Factors

Cooling

Total

Capacity

Sensible Capacity

EAT °F (DB)

0.743

0.820

0.896

60

0.911

0.771

65

**

0.882

0.670

70

**

1.019

0.854

75

**

**

1.047

0.971

1.000

0.649

0.556

70 0.995

70 1.044

75 0.984

75 1.116

**At this condition, Total Capacity = Sensible Capacity.

Gray shaded area includes conditions not typical for cooling operation.

0.866

0.780

0.638

80

**

**

**

1.081

1.000

0.865

0.601

WT Models, Rev.: B

65

85

**

**

**

**

1.216

1.085

0.832

Enertech Global

WARRANTY ORDER & CLAIM

PHONE :

618.664.9010

FAX :

618.664.4597

EMAIL :

[email protected]

ALL WARRANTY REGISTRATIONS SHOULD BE SUBMITTED WITHIN 10 DAYS OF INSTALLATION

PHONE _________________ FAX _________________ EMAIL ________________________________________

ORDERED BY _____________________________________ JOB NAME/PO # ____________________________

UNIT

Model

# _____________________________________

Serial

# ____________________________________

FAILURE DATE ____________________

SHIP TO

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Required if claim is for defective flow center

FLOW CENTER MODEL # ________________________ FLOW CENTER SERIAL # __________________________

FAILURE CODES, DESCRIPTION AND LABOR REIMBURSEMENT

MUST BE FOUND IN WARRANTY MANUAL

FAILURE CODE DESCRIPTION PART NUMBER

____________ _________________________________________________ __________

____________ _________________________________________________ __________

____________ _________________________________________________

__________

LABOR REIMBURSEMENT REQUESTED

NO YES

DO YOU NEED PARTS ORDERED?

NO

(If no, and replacement was purchased from another vendor, attach copy of bill if reimbursement is needed 3 .)

YES

____________ ____________

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____________________________________________________________________________________________

FOR ENERTECH COMPANIES USE ONLY

SRO# _________________________________________ CREDIT MEMO# ________________________________

1)

See warranty coverage summary sheet for labor allowances, conditions and exclusions, etc.

2) Warranty start date is ship date from Enertech facility unless proof of startup is presented. 3) Outsourced warranty replacement parts will be reimbursed in the form of credit for the part only.

Credit will be no more than the standard equivalent part cost through Enertech. 4) Factory pre-approval is required for anything outside the scope of this document.

5)

Fuses, hose kits and items not mentioned on Warranty Coverage Summary are not covered under this program.

WARRANTY REGISTRATION

PHONE :

618.664.9010

FAX :

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ALL WARRANTY REGISTRATIONS SHOULD BE SUBMITTED WITHIN 10 DAYS OF INSTALLATION

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APPLICATION

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OTHER ____________________________________________________________________________________________

Note: Check all that apply

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WE HAVE SUPERVISED THE INSTALLATION AND START-UP IN ACCORDANCE

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THIS UNIT IS PERFORMING SATISFACTORILY NOT SATISFACTORILY, IF NOT EXPLAIN ________________

____________________________________________________________________________________________

TO THE BEST OF MY KNOWLEDGE THE ABOVE INFORMATION IS

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MEMBER

Rev Tab

Enertech Global is continually working to improve its products. As a result, the pricing, design and specifications of each product may change without notice and may not be as described herein. For the most up-to-date information, please visit our website, or contact our Customer Service department at [email protected]. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties, but are merely Enertech

Global’s opinion or commendation of its products.

20D082-08NN ENERTECH GLOBAL, LLC 160113G