TF-Series

Installation and Service Manual

TF-Series

Modular Design

Two-Stage R410a

Model Sizes 45-80 (3-6 Ton)

Triple Function Geothermal Heat Pumps

Maritime Geothermal Ltd.

P.O. Box 2555

Petitcodiac, N.B. E4Z 6H4

Ph. (506) 756-8135

01 JAN 2014

Email: [email protected]

Web: www.nordicghp.com

Document Number: 001223MAN-04

001223MAN-04

!

WARNING:

Ensure all access panels are in place and properly secured before applying power to the unit.

Failure to do so may cause risk of electrical shock.

WARNING:

Before performing service or maintenance on the heat pump system, ensure all power sources

are DISCONNECTED. Electrical shock can cause serious personal injury or death.

WARNING:

Heat pump systems contain refrigerant under high pressure and as such can be hazardous to

work on. Only qualified service personnel should install, repair, or service the heat pump.

CAUTION:

Safety glasses and work gloves should be worn at all times whenever a heat pump is serviced. A

fire extinguisher and proper ventilation should be present whenever brazing is performed.

CAUTION:

Venting refrigerant to atmosphere is illegal. A proper refrigerant recovery system must be

employed whenever repairs require removal of refrigerant from the heat pump.

MODEL NOMENCLATURE

TF—65—HACW—P—1T—CC—SDERF—xx

Series:

TF = Active Cooling Liquid to Air &

Liquid To Water

Revision:

01, 02 etc.

Fan Outlet Orientation:

D = Down flow

F = Field Configurable

Nominal Size:

45 = 3 Ton

55 = 4 Ton

65 = 5 Ton

75 = 6 Ton

80 = 6 Ton Single Stage

Functions:

H = Heating

AC = Active Cooling

W = Domestic Hot Water

Fan Return Orientation:

L = Left Return

R = Right Return

Fan Motor:

E = ECM (Variable Speed)

Refrigerant:

P = R410a

Fan Type:

D = Direct Drive

Air Coil:

S = Standard

Voltage Code:

1 = 230-1-60 VAC

2 = 208-3-60 VAC

6 = 220-1-50 VAC

7 = 380-3-50 VAC

Indoor Loop Exchanger:

C = Copper

Z = Cupro-Nickel (CuNi)

Compressor Stages*:

S = 1 Stage

T = 2 Stage

* 2 stage unless unavailable due to voltage code, refer to the

Electrical Tables

.

Outdoor Loop Exchanger:

C = Copper

Z = Cupro-Nickel (CuNi)

001223MAN-04 Page 2 01 JAN 2014

APPLICATION TABLE

SIZE FUNCTION REFRIGERANT VOLTAGE STAGES OUTDOOR

COIL

INDOOR

COIL

45

55

65

75

80

HACW

HACW

HACW

HACW

HACW

P

P

P

P

P

1 T

2 T

C

6 S

Z

7 T

1 T

2 T

C

6 S

Z

7 T

1 T

2 T

C

6 S

Z

7 T

1 T

2 T

6 S

C

Z

7 T

1 S

2 S

C

Z

7 S

C

Z

C

Z

C

Z

C

Z

C

Z

FAN/CASE

SDELF

SDERF

SDELF

SDERF

SDELF

SDERF

SDELF

SDERF

SDELF

SDERF

REVISIONS

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

01 JAN 2014 Page 3 001223MAN-04

Table of Contents

Unit description: ………………………………………………………………………………………………………..…... Page 6

Unpacking the unit: …………………………………………………………………………………………….…………... Page 6

Optimum Placement: …………………………………………………………………………………………………...…. Page 6

Electrical Connections: …………………………………………………………………………………………….……… Page 6

Circulator Pump Module Wiring (Ground Loop Only): …………………………………………………...…………. Page 6

Indoor Loop Circulator Wiring: ………………………………………………………………………….……………….. Page 6

Thermostat Requirements: ………………………………………………………………………………...…………….. Page 6

Aquastat Requirements: ………………...………………………………………………………………….…………….. Page 7

Priority Selection: ……………….………...………………………………………………………………...…………….. Page 7

Operational Description: ………………………………………………………………………………………………….. Page 7

Fan Motor: ……………………………………………………………………………………………………….…………… Page 10

Fan Return Orientation: ………………………...…………………………………………………………….…………… Page 10

Fan Outlet Orientation : ………………………...…………………………………………………………….…………… Page 10

Control Transformer : ……..…………………...…………….………………………………………………….…………

Safety Controls: …………………………………………………………………………………………………….……….

Domestic Hot Water Connections (HACW only): …………………...……………………………………...…………

Page 10

Page 10

Page 11

SIZING AND DUCTWORK: ………………...………………………………………………………………………………..………… PAGE 14

Heat Pump Sizing: …………………………………………………………………………………………………….……. Page 14

Duct Systems - General: ……………………………………………………………………………………………….….. Page 14

Duct Systems - Grill Layout: ………………………………………………………………………………………….…… Page 14

Thermostat Location: ………………………………………………………………………………………………….…… Page 15

Condensate Drain: ………………………………………………………………………………………………...……….. Page 15

Duct Sizing Guide: ………………………………………………………………………………………………….………. Page 17

HYDRONIC INFORMATION: …………………………………………………………………………………………………….……. PAGE 18

Hydronic Systems - General: ………………………………………………………………………………………...…… Page 18

GROUND WATER SYSTEM INFORMATION: ……………………………………………………………………………….……… PAGE 22

General Requirements: ………………….……………………………………………………………………….…...…… Page 22

Plumbing the Heat Pump: ……………………………………………………………………………………………...…. Page 22

Pipe Insulation: ……………………………………………………………………………………………………...……… Page 22

Water Discharge Methods: ……………………………………………………………………………………..………… Page 22

GROUND LOOP SYSTEM INFORMATION: ………………………………………………………………………………………... PAGE 25

Circulator Pump Module: ……………………………………………………………………………………………….…. Page 25

Flushing & Purging the Ground Loop: ……………………………………………………………………………….…. Page 25

Adding Antifreeze Solution: ………………………………………………………………………………………….…… Page 26

Initial Pressurization: ……………………………………………………………………………………………….……… Page 26

Pipe Insulation: …………………………………………………………………………………………………….……….. Page 26

STARTUP PROCEDURE: ………………………………………………………………………………………………………..……. Page 28

Pre-start Inspection: ……………………………………………………………………………………………….………. Page 28

Unit Startup (Air): …………..…...…………………………………………………………………………………….……. Page 29

Startup Record (Air): ……………….…..………………………………………………………………………….………. Page 30

Startup Record (Hydronic): ………………...………………………………………………………………….…………. Page 32

GENERAL MAINTENANCE: ……………...…………………….………………………………………………………….………… PAGE 33

TROUBLESHOOTING GUIDE: ………………………………….………………………………………………………....………… PAGE 34

Repair Procedures: ……………………………………………………………………………………………...………… Page 46

Refrigeration Circuit Diagrams: ………………………………………………………………………………...………. Page 47

Refrigerant Charge Chart: ………………………………………………………………………………………….……… Page 50

Shipping Information: …………………………………………………………………………………………...…...…… Page 50

Standard Capacity Ratings: ……………………...…………………………………………………………...…………. Page 50

Capacity Ratings: ……………………...………………………………………………………………………...……..…. Page 52

Hydronic Capacity Ratings: ……………………...…………………………………………………………...…………. Page 57

Electrical Tables: ………………………………………………………………………………………………...………… Page 60

Aquastat Connection Diagram: …………………………………………………………………………………………. Page 61

Electrical Diagrams (208/230-1-60): ………..……………………………………………………………...…………… Page 62

Case Details: ………………………...……………………………………………………………………...……………… Page 64

APPENDIX A: Control Board Specifications: …………………………………………………………………………..………… PAGE 67

APPENDIX B: ECM Fan Airflow Tables: ……………………………………………………………………………………..……. PAGE 68

WARRANTY INFORMATION: ……………………………………………………………………………………………….……….. PAGE 72

001223MAN-04 Page 4 01 JAN 2014

Tables, Diagrams and Drawings

01 JAN 2014

TABLES

Table 1 - Thermostat Signal Description: …….………...………………………………………………..…….... Page 6

Table 2 - Aquastat Signal Description: …….…………………….………………………………………..…….... Page 7

Table 3 - Typical Aquastat Settings: …….………………………..…...…………………………………..…….... Page 7

Table 4 - TF Control System Truth Table (Air Priority): …………………..…………………………………… Page 8

Table 5 - TF Control System Truth Table (Hydronic Priority): ……………..………………………………… Page 8

Table 6 - Airflow Selections: ………………………………………….……………………………………………... Page 10

Table 7 - Control Board Fault Codes: ……..…………………………………………………………….………... Page 11

Table 8 - Heat Pump Size vs. Heated Area for Ground Loop Systems: …..………………………………... Page 14

Table 9 - Heat Pump Size vs. Heated Area for Ground Water Systems: ….………………………………... Page 14

Table 10 - Heat Pump Size vs. Hot Air Grills: …..………………………………….………………..…………... Page 15

Table 11 - Plenum Heater Sizing: …..………………………………………………..……………………………... Page 15

Table 12 - Duct Sizing Guide: ………………………………………..…………...………………………………... Page 17

Table 13 - Required Flow and Air Tank Sizing: …..……………………………………………….……………... Page 22

Table 14 - Antifreeze Percentages by Volume: ………………………………..………………………………... Page 26

Table 15 - Volume of Fluid per 100ft. Of Pipe: …..………………………………….…………………………... Page 26

Table 16 - Refrigerant Charge Chart: ………...…………………..………………….….………………………... Page 50

Table 17 - Shipping Information: ………...………………………..………………….….………………………... Page 50

Table 18 - Standard Capacity Ratings - Ground Loop Heating 60Hz: …………..…………………………... Page 50

Table 19 - Standard Capacity Ratings - Ground Water Heating 60Hz: …………….………………………... Page 50

Table 20 - Standard Capacity Ratings - Ground Loop Cooling 60Hz: …….…….…………………………... Page 51

Table 21 - Standard Capacity Ratings - Ground Water Cooling 60Hz: …..…….…………….……………... Page 51

Table 22 - Standard Capacity Ratings - Ground Loop Hydronic Heating 60Hz: ……………...…………... Page 51

Table 23 - Standard Capacity Ratings - Ground Water Hydronic Heating 60Hz: ……….………………... Page 51

Table 24 - Heat Pump Electrical Information (230-1-60): …..…………………….….………………………... Page 60




Table 28 - Plenum Heater Electrical Information: …..…………………………..……………………………... Page 60

DIAGRAMS

Diagram A - TF Control System Flow Chart (Air Priority): …………………………………….…………… Page 9

Diagram B - TF Control System Flow Chart (Hydronic Priority): …………………………….….………… Page 9

Diagram C - Typical P/T (Pete’s) Plug & Thermometer Stem: …….……………………….…………..…….. Page 25

Diagram D - Typical Purge Cart: …………………………………………………………………………………… Page 25

Case Details Top Views: ………..…………………….………………………………………………………….….. Page 64

Case Details - Left Return: ……..…………….…………...…………………………………………………….….. Page 65

Case Details - Right Return: ……………………...….………………………………………………………….….. Page 66

DRAWINGS

000344CDG - Typical Heating Only Zone Connection Diagram (TF&DXTF-Series): …...…………..…….. Page 12

000970PDG - Single Unit Connection to DHW Pre-Heat Tank (Brass FPT): ……………………………….. Page 13

001201CDG - Typical Duct and Condensate Connections (Modular Case): ….……………………………. Page 16

001046PDG - Typical Buffer Tank Configuration - Four Port Tank (Brass FPT): ………………………….. Page 19

000530PDG - Typical Zone Types for Hydronic Applications: ……………………………………………….. Page 20

001055PDG - Single Unit Connection to On-Demand DHW Pre-Heat Tank (Brass FPT): ……………….. Page 21

000907CDG - Typical Ground Water Installation for Size 25-75 Heat Pumps (Brass FPT): …………….. Page 23

000619INF - Ground Water Disposal Methods: ………………………………………………………………… Page 24

000906CDG - Geo-Flo Circulator Pump Module Installation: ………………………………………………… Page 27

001197RCD - Modular Parallel TF-Series Refrigeration Circuit Diagram—Heating Mode: ……...……… Page 47

001198RCD - Modular Parallel TF-Series Refrigeration Circuit Diagram—Cooling Mode: …….………. Page 48

001199RCD - Modular Parallel TF-Series Refrigeration Circuit Diagram—Hydronic Heating Mode: … Page 49

001244CDG - Modular Parallel TF(H)-Series Two-Stage Compressor Aquastat Connection Diagram: Page 61

001453SCH - TF-**-HAC*-P-1T-**-*DE** (Parallel) Schematic Diagram: ………...………...…………..…… Page 62

001454ELB - TF-**-HAC*-P-1T-**-*DE** (Parallel) Electrical Box Diagram: …….....……..…….…..……… Page 63

Page 5 001223MAN-04

Installation Information

UNIT DESCRIPTION

The TF-Series unit is a high efficiency two-stage geothermal heat pump with environmentally friendly R410a refrigerant.

Two-stage units offer longer runtimes and fewer cycles resulting in higher efficiency and a higher comfort level. It has three modes of operation: air heating, air cooling or hydronic heating.

NOTE: Air heating and hydronic heating cannot be

accomplished simultaneously.

An electrically commutated (ECM) fan with several speed options is standard. The motor has a soft start function for improved efficiency and reduced wear.

The unit has several key features that are described in the specifications document for the particular heat pump. Please request a copy if desired or visit www.nordicghp.com

UNPACKING THE UNIT

When the heat pump reaches its destination it should be unpacked to determine if any damage has occurred during shipment. Any visible damage should be noted on the carrier's freight bill and a suitable claim filed at once. The heat pump is well constructed and every effort has been made to ensure that it will arrive intact, however it is in the customer's best interest to examine the unit thoroughly when it arrives.

OPTIMUM PLACEMENT

For liquid to air units, to achieve the greatest efficiency, the heat pump should be centrally located in the home with respect to the conditioned space. This design provides the utmost in economy and comfort and usually can be accomplished in harmony with the design of the home. A heating system cannot be expected to produce an even warmth throughout the household when it is located at one end of the structure and the warm air is transmitted with uninsulated metal ductwork.

If possible the access panels should remain clear of obstruction for a distance of two feet to facilitate servicing and general maintenance.

Raising the heat pump off the floor a few inches is generally a good practice since this will prevent rusting of the bottom panel of the unit. We recommend that the heat pump be placed on a piece of 2'' thick styrofoam. The styrofoam will smooth out any irregularities in the cement floor and deaden any compressor noise emitted from the bottom of the cabinet.

The heat pumps come equipped with an air-filter rack which can be installed with the removable end (where the filter is inserted) on either side to facilitate changing the filter.

ELECTRICAL CONNECTIONS

The heat pump has a concentric 1.093” / 0.875” knockout for power supply connection to the electrical box. There is also a 0.875” knockout for connection to the circulator pump module for ground loop applications. There are two 1/2” openings with plastic grommets (grommet hole is 3/8”) in the upper section of the electrical box, one for the thermostat connections, and one for the optional plenum heater connections.

A schematic diagram (SCH) and electrical box layout diagram (ELB) can be found inside the electrical box cover of the unit as well as in the Model Specific section of this manual.

The Electrical Tables in the Model Specific section and the ELB diagram contain information about the size of wire for the connections, as well as the recommended breaker size. A

properly qualified electrician should be retained to make the connections to the heat pump and associated controls.

The connections to the heat pump MUST CONFORM TO

LOCAL CODES.

CIRCULATOR PUMP MODULE

WIRING (GROUND LOOP ONLY)

The heat pump has provisions for connecting the circulator pump module so that the pumps will be turned on whenever the compressor operates. Connect the circulator pump module to the appropriate two terminals of the terminal strip marked

OUTDOOR CIRCULATORS in the heat pump, as per the voltage of the circulator pump module. Ensure that the total current draw does not exceed the value indicated on the label in the heat pump electrical box. Refer to the electrical box drawing on the electrical box cover for more information.

INDOOR LOOP CIRCULATOR WIRING

The Indoor Loop circulator provides flow between the heat pump and the buffer tank. The heat pump has provisions for connecting the Indoor Circulator so that it will be turned on whenever the compressor operates. Connect the Indoor Loop circulator to the appropriate two terminals of the terminal strip marked INDOOR CIRCULATORS in the heat pump, as per the voltage of the circulator pump module. Ensure that the total current draw of all pumps connected to the terminal strip does not exceed the value indicated on the label in the heat pump electrical box. Refer to the electrical box drawing on the electrical box cover for more information.

THERMOSTAT REQUIREMENTS

The TF-Series unit requires a three-stage heating and two stage cooling thermostat for proper forced air operation. The stages are S1 = Stage 1 compressor, S2 = Stage 2 compressor and S3 = electric auxiliary (heating only). One can be purchased with the unit, or other thermostats with the same number of stages can be used. The electrical box diagram (ELB) on the electrical box cover provides a description of the signal connections as does

TABLE 1

.

TABLE 1 - Thermostat Signal Description

Signal Description

G

Y

1

R

H

L

Fan low speed (for air circulation)

Heat Pump Stage 1 Air

W

2

Fault (24VAC when fault condition)

Heat Pump Stage 3 Air (auxiliary heat) /

Emergency Heat

Cooling Mode (reversing valve) O

Y

2

AR

1

Heat Pump Stage 2 Air

Airflow Reduction*

AR

2

Reduction*

I Plenum Heater dry contact

1 Plenum Heater dry contact

* Connect AR

1

to AR

2

with a dry contact to reduce the airflow by 15%. Refer to the Fan Motor sub-section for more information.

001223MAN-04 Page 6 01 JAN 2014

NOTE: Some models are not available in two-stage at the present time (see Electrical Tables ). The Y2 signal is not used for these units.

AQUASTAT REQUIREMENTS

The heat pump requires a two-stage aquastat for proper hydronic operation. The stages are S1 = low speed, and S2 = high speed.

A two-stage aquastat can be purchased with the unit, or other system controllers with dry contacts may be used. This manual covers operation of the heat pump with an aquastat.

The aquastat connection diagram (CDG) can be found near the end of this manual and on the electrical box cover of the unit. It provides a description of the signal connections in the heat pump. They are also listed in

TABLE 2

.

TABLE 2 - Aquastat Signal Description

Signal

Y2A

Y1A

Description

Heat Pump Stage 2 Hydronic

Heat Pump Stage 1 Hydronic

The aquastat can be placed anywhere within the range of the probe cable. The probe(s) should be inserted into a dry well in or near the top of the tank for optimal operation

(refer to

drawing 000533PDG) . If a dry well is not available, it may be possible to fix the probe to the tank inside the insulation.

TABLE 3

shows typical settings for the aquastat. With these settings, Stage 1 will activate when the tank temperature reaches the activation point. If the load is too great, the tank temperature will continue to drop until Stage 2 is activated. As the tank temperature stops dropping and begins to increase ,

Stage 2 will turn off before Stage 1, rather than at the same time as Stage 1. There are three main advantages to this:

•

Less aquastat probe lag leading to reduced overshoot as the tank temperature rate of change is reduced when only

•

Stage 1 is active.

Prolonged Stage 1 runtime leads to increased overall efficiency as Stage 1 has a higher COP than Stage 2.

•

Reduced number of compressor starts.

The settings may be changed as desired; however Stage 1 setpoint should not exceed

120°F (49°C)

; Exceeding this setpoint limit will cause the heat pump operating pressures to approach the safety control settings, possibly causing nuisance shut downs.

TABLE 3 - Typical Aquastat Settings

Item °F

Stage 1

°C

°F

Stage 2

°C

Delta 5 3 5 3

Activation * 110 43 100 38

*Activation is indirectly set by the Setpoint and Delta values

If only floor zones are being heated, it is highly rec-

ommended to drop each of the setpoints by 15°F (8°C) for increased efficiency.

01 JAN 2014

It is recommended that a buffer tank with electric elements be selected to provide auxiliary / backup heat. The tank element thermostats can be set to a low value of around 60F (15C) which will prevent the hydronic system from becoming too cold should there be a failure in the heating system.

Drawing 000344CDG

shows how a typical zone system would be setup with the TF unit. The zone controls and heat pump operate independently, there are no connections between the two systems.

PRIORITY SLECTION

Units are shipped setup for air priority. To convert to hydronic priority, simply remove the jumper wire between the two PR terminals on the aquastat terminal strip. See the electrical box & schematic diagrams for more information.

OPERATIONAL DESCRIPTION

The TF unit is designed to deliver heat to the mode that requires it the most. Once the default priority has been selected, the unit will interpret the control signals and deliver heat based on logic described below. This logic can also be seen in

TABLE 4

and

TABLE 5

, in a truth table format or in

DIAGRAM A

and

DIAGRAM B

in flowchart format. Simply put, whenever there is a call on both air and hydronic, the unit steps up to Stage 2 of the priority mode (if it was not already there) in order to satisfy the demand quickly and return to the non-priority mode.

SINGLE MODE OPERATION:

If there is only an air mode call (Y1 and/or Y2 and/or W2) the unit operates in air mode as Stage 1, Stage 2 or Stage 3.

If there is only a hydronic mode call (Y1 and/or Y2) the unit operates in hydronic mode as Stage 1 or Stage 2.

AIR MODE PRIORITY OPERATION:

If there is a call for both Stage 1 air and Stage 1 hydronic, the unit operates in Air Mode as Stage 2.



HYDRONIC MODE PRIORITY OPERATION:

If there is a call for both Stage 1 air and Stage 1 hydronic, the unit operates in Hydronic Mode as Stage 2.



NOTES:

Stage 3 (W2) of Air Mode overrides Hydronic Mode even if

Hydronic Mode has priority. This unit functions this way because either the air temperature has dropped significantly in order to reach Stage 3 or the thermostat has been set to Emergency Mode.

The fan can operate in recirculation mode (G) only if there is not a hydronic Stage 1 (Y1A) signal present, regardless of priority selection.

Page 7 001223MAN-04

TABLE 4 - TF Control System Truth Table (Air Priority)

CONTROLS SYSTEM OPERATION

Thermostat Aquastat

AIR MODE

STAGE 1

AIR MODE

STAGE 2*

AIR MODE

STAGE 3

HYDRONIC

STAGE 1

HYDRONIC

STAGE 2

STAGE 1 STAGE 2 STAGE 3 STAGE 1 STAGE 2

X

X X

X

X

X X X

X

X X

X

X X

X

X X

X X X

X X X X

X

X

X

X X

X X X

X X X X

X X X X X

X X

X X

X**

X**

* An X in both Stage 2 and Stage 3 indicates that the compressor and plenum heat are active.

** This is emergency heat situation. Only the plenum heater is active.

TABLE 5 - TF Control System Truth Table (Hydronic Priority)

CONTROLS SYSTEM OPERATION

Thermostat Aquastat

AIR MODE

STAGE 1

AIR MODE

STAGE 2*

AIR MODE

STAGE 3

HYDRONIC

STAGE 1

HYDRONIC

STAGE 2

STAGE 1 STAGE 2 STAGE 3 STAGE 1 STAGE 2

X

X X

X X X

X

X

X

X X

X

X X X

X X

X X X

X

X

X X X X

X X X

X X X X

X

X X

X X

X X X X X

X**

X X

X**

* An X in both Stage 2 and Stage 3 indicates that the compressor and plenum heat are active.

** This is emergency heat situation. Only the plenum heater is active.

001223MAN-04 Page 8 01 JAN 2014

Thermostat

G

DIAGRAM A - TF CONTROL SYSTEM FLOW CHART (AIR PRIORITY)

Thermostat

STAGE 1

(Y1)

Thermostat

STAGE 2

(Y2)

Thermostat

STAGE 3

(W2/E)

Aquastat

STAGE 1

(Y1A)

Aquastat

STAGE 2

(Y2A)

ON ON ON ON OFF OFF

ON

ON

OFF

AND

AND

AND

OR AND AND

FAN

RECIRCULATE

AIR MODE

STAGE 1

AIR MODE

STAGE 2

PLENUM

HEATER

HYDRONIC MODE

STAGE 1

HYDRONIC MODE

STAGE 2

DIAGRAM B - TF CONTROL SYSTEM FLOW CHART (HYDRONIC PRIORITY)

Thermostat

G

Thermostat

STAGE 1

(Y1)

Thermostat

STAGE 2

(Y2)

Thermostat

STAGE 3

(W2/E)

Aquastat

STAGE 1

(Y1A)

Aquastat

STAGE 2

(Y2A)

ON ON ON ON OFF OFF

ON

ON

AND

AND AND

FAN

RECIRCULATE

01 JAN 2014

AIR MODE

STAGE 1

AIR MODE

STAGE 2

PLENUM

HEATER

Page 9

AND

AND OR

HYDRONIC MODE

STAGE 1

HYDRONIC MODE

STAGE 2

001223MAN-04

FAN MOTOR

The unit is equipped with a direct drive ECM fan motor for maximum efficiency. The motor features a soft start which further improves efficiency by eliminating inrush current and provides a smooth, quiet ramp up to speed . The motor will maintain the programmed air flow up to the maximum external static value. Refer to the

APPENDIX B: ECM Fan Airflow Tables.

The air flow can be set to four different levels by changing the position on the Air Flow board located in the electrical box.

The four levels are indicated in

TABLE 6

. The actual air flow values can be found in

APPENDIX B

.

CONTROL TRANSFORMER

The low voltage controls are powered by a 75VA class II transformer. The transformer has a resettable breaker on the secondary side for circuit protection. Should the breaker trip, locate and correct the problem and then reset the breaker by pressing in on it.

NOTE: For 208/230VAC-1-60 units, if connecting to 208VAC power supply move the red wire connected to the 240 terminal of the transformer to the 208 terminal of the transformer.

TABLE 6 - Airflow Selections

Position Airflow

LOW -6%

MED Nominal

HIGH +6%

MAX +12%

Units are shipped with the MED position selected for nominal air flow. The air flow can be further reduced by 15% by making a dry contact across AR

1

and AR

2

on the terminal strip.

This can be used for applications that have multiple zones, or retrofits with undersized ductwork, to help reduce air flow noise in the ductwork. It is recommended that airflow reduction only be used with the High or Max air flow setting. Care should be taken to ensure that the unit does not trip a safety control in heating or cooling mode if the 15% reduction is used in conjunction with the MED or LOW air flow setting.

FAN RETURN ORIENTATION

The TF-Series heat pump can be ordered as a left or right hand return from the factory. This must be specified at time of order as the physical construction of the two configurations is different. Refer to the specification documents for more details.

FAN OUTLET ORIENTATION

The TF-Series heat pumps have a field configurable fan.

It’s default location from the factory is in the top of the unit, providing a “ninety” in the airflow. It can easily be placed in the side of the unit for straight through airflow.

To switch the location of the fan outlet follow these simple steps:

1. Turn the power of to the unit.

2. Remove the screw that holds the side access panel in place and remove the access panel by pulling up on the handle and then outward from the bottom.

3. Disconnect the two wire harnesses and ground wire from the fan motor.

4. Repeat step 2 for the access panel with the fan mounted in it. Set the assembly on the floor.

5. Disconnect the plenum heater extension from the fan housing and from the access panel.

6. Mount the fan housing directly to the access panel.

7. Install the fan/panel in the new location and secure with the screw.

8. Reconnect both harnesses and ground wire.

9. Install the remaining access panel and secure with the remaining screw.

SAFETY CONTROLS

The heat pump has two built in safety controls which are designed to protect the unit from situations which could damage it should the operation of the refrigeration circuit fall outside the allowable operating range.

A. Low Pressure Control

The low pressure control monitors the compressor suction pressure and will shut the compressor down if the refrigerant evaporating pressure becomes too low, risking the danger of freezing conditions in the evaporator.

There are (3) main reasons why this control would activate in response to the operating conditions of the unit while operating in heating mode:

1. Low or no Outdoor loop flow.

2. Low Outdoor loop entering liquid temperature.

3. Dirty or fouled Outdoor loop heat exchanger.

B. High Pressure Control

The high pressure safety control monitors the compressor discharge pressure and will shut the compressor down if the condensing pressure becomes too high.

There are (3) main reasons why this control would activate in response to the operating conditions of the unit while operating in heating mode:

1. Low or no airflow.

2. High return air temperature.

3. Dirty air coil due to poor filter maintenance.

The unit contains a control board that monitors the safety controls and operates the compressor accordingly. Refer to

APPENDIX A

for control board specifications. The low pressure control is connected to LP1 and LP2. The high pressure control is connected to HP1 and HP2.

The control board also has provisions for a flow switch.

The flow switch is unused from the factory and a jumper wire is placed across the FLOW SWITCH terminals. If a flow switch is desired, the jumper can be removed and the two leads from the flow switch can be connected to the FLOW SWITCH terminals on the safety board. The flow switch is ignored for 30 seconds on compressor startup to allow time for flow to be established.

The high and low pressure controls are monitored at all times.

The compressor will not be able to start if either of them has a fault.

The control board has an on-board LED and a FAULT pin with a 24VAC output. An external indicator or relay can be connected across the FAULT pin and ground if external signaling is desired. Should a fault occur, the LED will flash the code of the fault condition while the safety control in question is open.

The codes are shown in

TABLE 7.

The control board will lock

001223MAN-04 Page 10 01 JAN 2014

out the compressor for five minutes when a fault occurs. Three retries per fault condition are allowed within a 60 minute period.

If the fault condition occurs a fourth time the control board will

If the control board enters permanent lockout mode there is a serious problem with the system and it must be rectified if the unit is to maintain good service.

DOMESTIC HOT WATER

CONNECTIONS (HACW only)

permanently lock out the compressor and energize the FAULT pin. This can only be reset by powering down the unit. The

LED will flash the fault code until the unit is reset.

!

The port connections for the DHW circuit are 1/2” brass FPT fittings.

A typical piping diagram for a pre-heat tank configuration can be found in

drawing 000970PDG

at the end of this section.

Be sure to note the position of the check valve and the direction of water flow. Other configurations are possible, and there may be multiple units tied together in larger buildings.

TABLE 7 - Control Board Fault Codes

Fault

High Pressure

Code

1

!

WARNING: USE ONLY COPPER LINES TO

CONNECT THE DESUPERHEATER. TEMPERA-

TURES COULD REACH 200F SHOULD THE DHW

CUTOUT SWITCH FAIL, POTENTIALLY RUPTURING

PEX PIPING. Low Pressure 2

Flow 3

WARNING: REPEATED RESETS OF A LOW PRES-

SURE LOCKOUT COULD CAUSE THE HEAT EX-

CHANGER TO FREEZE AND RUPTURE, DESTROYING

THE HEAT PUMP AND VOIDING THE WARRANTY.

when it is started.

Ensure the tank is filled with water and under pressure before activating the heat pump. Slightly loosen the boiler drain on the DHW Out pipe to allow air to escape from the system before the unit is started. This step will make certain that the domestic hot water circulator in the unit is flooded with water

!

CAUTION: the domestic hot water pump is water lubricated; damage will occur to the pump if it is run

dry for even a short period of time.

Connect the brown wire with the blue insulated terminal to

L1 of the compressor contactor. Ensure the power is off

when connecting the wire.

The DHW loop may have to be purged of air several times before good circulation is obtained. A temperature difference between the DHW In and DHW Out can be felt by hand when the circulator pump is operating properly.

For the pre-heat tank setup, the final tank should be set to

140°F(60°C),

unless local code requires a higher setting.

The pre-heat tank does not require electric elements. This setup takes full advantage of the desuperheater as it is the sole heat provider to the pre-heat tank. The desuperheater remains active during the compressor runtime until the pre-heat tank has been completely heated by the desuperheater alone. This setup is more energy efficient than a single tank setup.

CAUTION: If two (2) shut-off valves are located on the domestic hot water ines as shown in the diagram, a pressure relief valve must be installed to prevent possible damage to the domestic hot water circulator pump should both valves be closed.

01 JAN 2014 Page 11 001223MAN-04

001223MAN-04 Page 12 01 JAN 2014

01 JAN 2014 Page 13 001223MAN-04

Sizing and Ductwork

HEAT PUMP SIZING

TABLE 8

depicts a rough guideline as to the size of home each heat pump size can handle for ground loop installations. document) in conjunction with the minimum expected entering liquid temperature of the ground loop (well water temperature for ground water system). The heat pump output must be able to match the total heat loss at the selected entering water temperature in order to provide a comfortable environment with minimal auxiliary heat.

TABLE 8 - Heat Pump Size vs. Heated Area

for a Ground Loop System

Model

Size (tons)

Sq.ft.

Sq.m.

DUCT SYSTEMS - GENERAL

45 3 1,400

55 4 2,000

65 5 2,600

trunks required. Air temperature leaving the heat pump is normally

95º -105ºF (35-40ºC),

much cooler than that of a

75 6 3,100

80 6 3,500

TABLE 9

depicts a rough guideline as to the size a home each heat pump size can handle for ground water installations.

TABLE 9 - Heat Pump Size vs. Heated Area

for a Ground Water System

Model

Size (tons)

Sq.ft.

Sq.m.

45 3 1,800

55 4 2,500

consequently duct sizing must be able to accommodate the greater air flow without creating a high static pressure or high velocity at the floor diffusers.

A duct system capable of supplying the required air flow is of utmost importance. Maritime Geothermal Ltd. recommends that the static pressure be kept below 0.2 inches of water total. In some instances the number of floor diffusers will actually double when compared to the number that would be used for a hot air oil-fired furnace. Refer to

TABLE 12

at the end of this section.

65 5 3,200

75 6 3,800

80 6 4,200

surface area of leads being fed at any given point.

4. Return air grills should have a minimum of the same total

square surface area as the total of the supply grills.

THE TABLES ABOVE ARE FOR INFORMATION ONLY,

THEY SHOULD NOT BE USED TO SELECT A UNIT SIZE.

They simply show on average what size unit is required for a

5. The square surface area of the return trunks should equal

the square surface area of the grills being handled at any

given point along the trunk. typical two-level home (main level and below grade basement) with R-20 walls, R-40 ceiling and average size and number of windows. The Heated Area is the area of the main level, The tables account for a basement the same size as the heated area.

It is VERY IMPORTANT that all turns in both the supply trunks and the return trunks be made with

TURNING RADII

. Air act like a fluid and, just like water, pressure drop is increased when air is forced to change direction rapidly around a sharp or

MARITME GEOTHERMAL LTD. HIGHLY RECOMMENDS

THAT A PROPER HEAT LOSS/GAIN ANALYSIS BE PER-

FORMEDE BY A PROFESSIONAL INSTALLER WITH CSA

APPROVED SOFTWARE BEFORE SELECTING THE SIZE OF

irregular corner.

It is recommended that flexible collars be used to connect the main trunks to the heat pump. This helps prevent any vibrations

UNIT REQUIRED FOR THE APPLICATION. For heating dominant areas, we recommend sizing the unit to 100% of the heating design load for maximum long term efficiency with minimal supplementary heat. The unit should be in-

from travelling down the ductwork. If a plenum heater is installed, the collar should be at least 12” away from the heater elements.

The first 5-10 feet of the main supply trunks should be insulat-

stalled as per CSA 448.2-02. For ground loop applications, the ground exchanger should be designed using suitable software with a multi-year analysis.

ed with acoustical duct insulation to further inhibit any noise from the unit from travelling down the ductwork. If a plenum heater is installed, insulation should not be placed within 12” of the heater elements.

Drawing 001201CDG

shows a typical installation.

There are many factors to consider when sizing the heat pump. Some of these factors include the number of levels, the size of the windows, the orientation of the home, attached gar-

DUCT SYSTEMS - GRILL LAYOUT

age, bonus rooms, walk-in basement, coldest outdoor temperature, etc. The heat loss program will take all of these factors into consideration in its calculations. An undersized installation will not be as efficient as it will require excessive relatively expensive supplemental heat to maintain a comfortable temperature in the home, and the cost savings of having a geothermal heat pump are greatly reduced.

Once the total heat loss has been calculated, the unit can be sized using the performance tables (from the specifications

Most forced air heating systems in homes have the floor grills placed around the perimeter of the room to be heated. Supply grills should be placed under a window when possible to help prevent condensation on the window. As mentioned in the previous sub-section, supply grill leads should be 6'' in diameter (28 sq.in. each) to allow 100cfm of air flow.

In a typical new construction, there should be one supply grill for every 100sq.ft. of area in the room. When rooms require more than one grill, they should be placed in a manner that promotes even heat distribution, such as one at each end of the

001223MAN-04 Page 14 01 JAN 2014

room. It is always a good idea to place a damper in each grill supply or place adjustable grills so that any imbalances in the heat distribution can be corrected.

The total number of supply grills available is based on the heat pump nominal airflow.

TABLE 10

shows the number of grills available per heat pump size.

TABLE 10 - Heat Pump Size vs. Hot Air Grills

Model

Size (tons)

# of Grills (@100cfm)

45 3

55 4

65 5

75 6

80 6

12

15

19

21

24

Return grills should be mounted on the floor. At minimum they should be the same size as the supply grill, it is highly

recommended that they be 25% to 50% larger than the total

supply. They should be placed opposite the supply grills when possible to ensure distribution across the room. For rooms requiring more than one supply grill, it may be possible to use one larger return grill if it can be centrally positioned opposite of the supply grills, however it is preferred to have one return for each supply to maximize heat distribution across the room.

THERMOSTAT LOCATION

Most homes are a single zone with one thermostat. The thermostat should be centrally located within the home, typically on the main floor. It should be placed away from any supply grills, and should not be positioned directly above a return grill. Most installations have the thermostat located in a hallway, or in the inner wall of the living room. It should be noted that most homes do not have any supply ducts in the hallway. This can lead to a temperature lag at the thermostat if there is very little air movement in the hallway, causing the home to be warmer than indicated by the thermostat.

PLENUM HEATER (OPTIONAL)

For installations that do not already have a backup heat source such as electric baseboard, wood stove, propane etc, it is recommended that a plenum heater be installed. This provides two functions.

The first function of the plenum heater is to act as an auxiliary heat source. As such it will provide additional heat on extremely cold days if the heat pump is unable to bring the home temperature up quickly enough, eliminating any discomfort to the homeowner.

The second function of the plenum heater is to provide emergency heat should a problem occur that causes the heat pump to be locked out. This can be engaged by setting the thermostat to emergency heat, allowing the plenum heater to function while preventing the heat pump from operating. Should the heat pump fail while the home is vacant, the auxiliary function of the thermostat will maintain the temperature setting of the thermostat.

INSTALLATION—Fan outlet at top of unit: The heat pump comes equipped with an internal mounting location for the plenum heater. Remove the screws from the cover plate, remove the cover plate and place the plenum heater in the hole. Secure it in place with the cover plate screws. Use the indicated knockouts on the heat pump case for electrical connections.

01 JAN 2014 Page 15

When installation is complete, check the appropriate box of the label on the air handler door to indicate which size heater was installed.

INSTALLATION—Fan outlet at side of unit: The plenum heater should be installed in the supply duct in a manner that allows all of the airflow to pass through it to prevent any hot spots in the heater elements. Ensure that the plenum heater is mounted in an approved position as per its instructions.

Only two control wires are needed to connect the plenum heater to the heat pump terminal strip. Refer to the label on the plenum heater or the electrical box diagram on the inside of the electrical box cover of the compressor unit for details on the connections.

The plenum heater requires its own separate power supply. TABLE 11

shows the recommended size plenum heater, as well as the wire size and breaker size needed to provide power to the plenum heater. Refer to the Electrical Tables for electrical connection information.

TABLE 11 - Plenum Heater Sizing

Heat

Pump

Model

Size

Plenum Heater Sizes (kW)

Recommended Available

75 - 80 20 15

CONDENSATE DRAIN

The unit comes equipped with a 3/4” PVC socket fitting

(female) labeled “Condensate Drain”. This drain allows the condensate which forms during the air-conditioning cycle to be removed from the unit. The drain should be connected as per local codes. During high humidity weather, there could be as much as 25 gallons of water formed per day.

Care should be taken in the spring to ensure that this pipe is not plugged with dust that has collected during the winter causing the condensate to overflow into the bottom of the heat pump and onto the floor. The condensate drain is internally

trapped; however, proper venting is required external to the heat pump. Refer to local codes to ensure the installation is done properly. Drawing 001201CDG

shows a typical installation.

001223MAN-04

001223MAN-04 Page 16 01 JAN 2014

380

452

452

531

616

616

707

201

254

254

314

314

380

707

804

804

908

908

6500

7250

7800

8500

9200

9800

10900

1450

1750

2000

2250

2600

2900

3400

3600

4300

5250

6125

TABLE 12 - Duct Sizing Guide (external static of 0.20”H2O)

Airflow

(CFM)

37

Minimum

Duct Area

(sq.in)

Diameter

(in)

20 5

Rectangular Equivalents (in)

2.25 x 10 3 x 8 3.5 x 6 4 x 5.5 5 x 5

63

100

20

28

5

6

2.25 x 10 3 x 8

3.25 x 10 4 x 8

3.5 x 6 4 x 5.5 5 x 5

5 x 6 5.5 x 5.5 6 x 6

152

212

226

277

304

393

38

50

50

64

64

79

113

7

8

8

9

9

10

3.25 x 14 4 x 11

4 x 15 5 x 12

4 x 15

5 x 15

5 x 15

6 x 15

5 x 12

6 x 12

6 x 12

7 x 13

5 x 8.5

6 x 10

6 x 10

7 x 10

7 x 10

8 x 11

6 x 7 6.5 x 6.5

7 x 8 8 x 8

7 x 8 8 x 8

8 x 9 8.5 x 8.5

8 x 9 8.5 x 8.5

9 x 10 9.5 x 9.5

411

655

680

995

1325

113

154

154

201

12

12

14

14

16

7 x 18

7 x 18

8 x 22

8 x 22

8 x 30

8 x 16

8 x 16

9 x 19

`

9 x 14

9 x 14

10 x 12

10 x 12

11 x 11

11 x 11

10 x 17 11 x 15 12 x 14 13 x 13

9 x 19 10 x 17 11 x 15 12 x 14 13 x 13

10 x 22 12 x 18 14 x 16 15 x 15

Return Air

Diameter

(in)

Airflow

(L/s)

5 17

6

7

30

47

10

10

12

12

8

9

72

100

107

131

143

185

194 12

14

14

16

18

309

321

470

625

32

32

34

34

28

30

30

24

26

28

20

22

22

24

16

18

18

20

8 x 30 10 x 22 12 x 18 14 x 16 15 x 15

8 x 40

8 x 40

10 x 30

10 x 30

12 x 24

12 x 24

14 x 20

14 x 20

16 x 17 16.5 x 16.5

16 x 17 16.5 x 16.5

10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18.5 x 18.5

10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18.5 x 18.5

12 x 36 14 x 30 16 x 26 18 x 23 20 x 20

12 x 36 14 x 30 16 x 26 18 x 23 20 x 20

14 x 38 16 x 32 18 x 28 20 x 25 22 x 22

14 x 38 16 x 32 18 x 28 20 x 25 22 x 22

16 x 38 18 x 32 20 x 30 22 x 24 24 x 24

18 x 38 20 x 34 22 x 30 24 x 28 26 x 26

18 x 38 20 x 34 22 x 30 24 x 28 26 x 26

20 x 40 22 x 38 24 x 32 26 x 30 28 x 28

20 x 40 22 x 38 24 x 32 26 x 30 28 x 28

22 x 40 24 x 38 26 x 34 28 x 32 30 x 30

22 x 40 24 x 38 26 x 34 28 x 32 30 x 30

24 x 42 25 x 40 26 x 38 28 x 34 30 x 32 31 x 31

24 x 42 25 x 40 26 x 38 28 x 34 30 x 32 31 x 31

28 x 40 30 x 36 32 x 34 33 x 33

30 x 42 32 x 38 34 x 36 35 x 35

30 x 45 34 x 40 36 x 38 37 x 37

20

684

826 20

22

944

22

1062

24 1227

24 1369

26

1605

26

1699

28 2029

30

2478

32

2891

34 3068

34 3422

36

3681

36 4012

38 4342

38

4625

40

5144

01 JAN 2014 Page 17 001223MAN-04

HYDRONIC INFORMATION

HYDRONIC SYSTEMS - GENERAL

The most common applications for the TF-Series hydronic heating are: (see

drawing 000530PDG

for typical zone types)

•

•

• radiant in-floor heating

On-demand domestic hot water

Swimming pool or spa

The radiant in-floor areas of the home may be sectioned into several areas called zones. Each zone has its own thermostat, allowing simple separate temperature control of the individual areas in the home. A typical system consists of the heat pump, the buffer tank and the zones. The sole purpose of the heat pump is to maintain the buffer tank set point. Its operation is independent of the zone operation.

HYDRONIC SYSTEM CONNECTIONS

The port connections for the Indoor Loop are 1” brass FPT fittings They are marked as INDOOR IN and OUT.

Flow through the unit is provided by an external circulator connected to the Indoor Loop Circulator terminal strip in the electrical box of the unit. The circulator is only powered when in hydronic heating mode and the compressor is operating.

Drawing 001046PDG

shows a typical piping configuration for a single unit with a buffer tank. This is a guideline for a simple installation. This is a typical installation where there may be one or several floor zones or even fan coils. There are many other configurations, such as, multiple units connected to one buffer tank, on-demand domestic only, etc… It is recommended that the hydronic system be designed by a qualified system designer to ensure proper functionality.

Drawing 001055PDG

shows two typical on-demand domestic hot water systems, dedicated and zoned. For a dedicated setup, there are no zones and the home is heated solely by air.

The TF unit can very easily be switched between air or hydronic priority during installation simply by placing or removing a jumper between the set of PR pins on the aquastat terminal strip.

Jumper in place sets the unit to air priority.

WARNING: Most indirect tank heat transfer ratings

!

are done at high water temperatures such as 160°F

(71°C). Be sure to select an indirect tank that has a transfer rate of at least the heat pump capacity at open loop conditions (refer to TABLE 20). Failure to do so can lead to nuisance high pressure trips due to inadequate heat transfer from the heat pump to the tank.

001223MAN-04 Page 18 01 JAN 2014

01 JAN 2014 Page 19 001223MAN-04

001223MAN-04 Page 20 01 JAN 2014

01 JAN 2014 Page 21 001223MAN-04

Ground Water System Information

GENERAL REQUIREMENTS

1. The temperature of the well water should be a minimum of 39°F (4°C), and should normally be 45+°F (7°C)

2. The well system must be able to supply the required water flow as listed under the Total Flow column in

TABLE 13

.

TABLE 13 - Required Flow and Air Tank Sizing

Heat

Pump

Model

Size

Heat

Pump

Flow*

IGPM

(USGPM)

Home

Flow

IGPM

(USGPM)

Total

Flow

IGPM

(USGPM)

Minimum Air

Bladder

Tank**

IGal

(USgal)

45

55

8 (9.6) 3 (3.6)

10 (12.0) 3 (3.6)

65 12 (14.4) 3 (3.6)

75 - 80 14 (16.8) 3 (3.6)

11(13.2)

13(15.6)

15(18.0)

17(20.4)

22(26)

26(31)

30(36)

34(41)

* These are minimum water requirements based on an entering water temperature of 46° F.

**Based on two-minute well pump run time. Use next size larger tank if there is not a match for the value indicated.

A larger tank may be used if a longer run time is desired.

PLUMBING THE HEAT PUMP

The port connections for the Outdoor Loop are 1” brass

FPT fittings. They are marked as OUTDOOR IN and OUT.

Plumbing lines, both supply and discharge, must be of adequate size to handle the water flow necessary for the heat pump. A 1” copper or plastic line should be run to the Outdoor

IN (Supply IN) pipe of the heat pump. Similarly, a 1”' line should be run from the Outdoor OUT (Supply Out) pipe to the method of disposal. P/T plugs should be installed at each port. See

Diagram A

in the Ground Loop section for a description of P/T plugs. The water valve should be installed in the discharge line.

Refer to drawing 000907CDG at the end of this section

for the recommended setup. Placing the water valve in the discharge line ensures that the heat exchanger inside the heat pump remains full of water when the unit is not running. Unions or some other form of disconnect should be used so that the coaxial heat exchanger may be accessed should it required cleaning.

The heat pump has an electrical connector for the water valve just inside the case. After the water valve is installed, run the valve harness into the case through the hole provided. Remove the jumper plug from the Valve Connector and connect the harness in its place.

Ideally there will be water flow available in excess of the requirement of the heat pump. In such a situation the proper pump can be selected to maintain a pressure of 30 to 40 psig. on the lines when the heat pump is operating. However in some cases a well can supply a heat pump only if the minimum requirement for water is used.

001223MAN-04

Water flow to the heat pump can be controlled very accurately by the installation of a reverse action refrigeration pressure valve in the discharge line of the unit.

Another more common method of regulating the flow is by the use of a DOLE Valve. This valve will automatically control the amount of water flowing through it by varying the diameter of a flexible rubber orifice through which the water passes. This minimizes the water usage of the unit and also prevents excessively low discharge pressure when in cooling mode. Dole valves can be noisy, it is recommended that they be installed outside if possible.

Optionally a water flow meter can be installed in the discharge line so that the exact amount of water flowing can be determined at a glance. It should be placed between the Outdoor OUT (Supply OUT) pipe of the heat pump and the water valve.

With Proper flow, there should be

5-7°F (3-4°C)

delta T between the IN and OUT water temperatures of the heat pump when operating in the heating mode.

All water line valves on both the supply and discharge lines should be either BALL or GATE valves. GLOBE valves have a higher pressure drop, meaning more pumping power to maintain the required flow to the heat pump.

PIPE INSULATION

All ground water piping to and from the Outdoor Loop ports on the heat pump should be insulated with 3/8” closed cell pipe insulation, to prevent condensation and dripping onto floors or walls.

WATER DISCHARGE METHODS

Water disposal methods vary from area to area. However, some consideration should be made to prevent the cooled discharge water from immediately coming in contact with the supply source. Attempting to return the water to the source well will eventually cool the water so much that the heat pump will shut off on its low pressure safety control.

Acceptable methods for disposing of the waste water are listed below. The waste water is clean, the heat pump has no effect other than reducing the temperature of the water.

Refer to the Ground Water Disposal methods diagram

for typical disposal method diagrams.

•

Second well (return well)

•

Percolation (Drain, ditch, leaching field)

•

Pond, river or stream.

ENSURE SELECTED METHOD CONFORMS TO LOCAL CODES.

Page 22 01 JAN 2014

A return well should be a minimum of 80 ft. from the supply well for residential applications. The water returned to the well will not necessarily be pumped into the same aquifer, depending on underground conditions. The return well must be able to supply at least the same quantity of water as the amount you wish to recharge into it. If the static level (level when not being pumped) of a well is high (10 to 20 ft. from the surface) it may be necessary to place a well cap on the well to keep the return water from flowing out the top of the well. This cap is commonly required since a certain amount of pressure is needed to force the return water back down the well if the static level is high.

Water discharged by percolation will generally soak into the ground within a distance of 50 to 100 ft. If suitable care is taken to ensure that the drain pipe runs downhill and the end of the pipe is protected by a bale of hay or spruce bows etc. the end of the pipe will not freeze as the pipe will empty out when the heat pump shuts off and the water valve closes.

When snow comes it will usually cover the entire process much like a small spring. It is recommended that the pipe be below the frost line when possible for maximum freeze protection.

When discharging into a river or stream, or above the surface of a pond, the same guidelines should be followed as described in the paragraph above for the percolation method.

When discharging the waste water below the surface of a pond, the discharge pipe should be placed below the frost line to prevent the pipe from freezing. As opposed to the percolation method, water will remain in the end of the pipe. It is recommended that the surface of the pond be lower than the installation location of the heat pump where practical. This reduces the back pressure generated by the weight of the water in the pond.

01 JAN 2014 Page 23 001223MAN-04

001223MAN-04 Page 24 01 JAN 2014

Ground Loop System Information

Once the ground loop has been pressure tested and the header pipes have been connected to the circulator pump module, the heat pump can be connected to the circulator pump module.

CIRCULATOR PUMP MODULE

Maritime Geothermal Ltd. has compact pump modules with built in three way valves to facilitate filling and purging the ground loop.

Refer to drawing 000906CDG at the end of this

section. Alternatively, Grundfoss® Model UPS 26-99 or Taco®

Model 0011 pumps or other brands with similar pumping capability may be used. The single pump module will typically handle systems up to 3 tons (model size 45); the two pump module will typically handle 4 to 6 ton systems (model sizes 55,

65, 75). This is based on a typical parallel system with one circuit per ton.

Maritime Geothermal recommends calculating the total pressure drop of the ground loop (including headers, indoor piping and heat pump exchanger drop) based on the antifreeze type and concentration at the desired minimum loop temperature. A pump module that can deliver the flow required for the unit at the calculated total pressure drop should be selected.

Refer to the Model Specific Information section

for unit flow requirements.

Loop pressure drops can be calculated using software such as those mentioned in the Horizontal Ground loops section, or can be calculated in a spreadsheet using the pipe manufacturer’s pressure drop tables for pipe diameter and fittings.

The circulator pump module must be connected to the heat pump Outdoor Loop ports with a lineset suitable for the flow required with minimum pressure drop. 1” rubber or plastic lines should be used. The installation of P/T plugs (pressure / temperature, pronounced “Pete’s plugs” ) is recommended on both the entering and leaving lines at the heat pump

(see

Diagram C).

DIAGRAM C - Typical P/T (Pete’s) Plug

& Thermometer Stems

The P/T plug will allow the installer or homeowner to check water flow through the loop by measuring the pressure difference through the heat exchanger and comparing it to that listed in the

Model Specific Information section

, or the specifications document . Optional fittings with P/T ports are available for the circulator pump modules sold by Maritime

Geothermal Ltd..

FLUSHING & PURGING THE GROUND

LOOP

Once the groundloop has been installed and all connections are completed between the heat pump, circulator pump module and ground loop, the entire ground loop system should be

pressure tested with air to 100 PSIG to make sure there are no leaks on any of the inside fittings. Soap all joints and observe that the pressure remains constant for 1 hour.

When satisfied that all connections are leak free, release the air pressure and connect a purge cart

(see Diagram D )

to the flushing access ports at the pump module

(refer to drawing

000906CDG).

A temporary flushing system can alternately be constructed using a 45 gal. barrel and a pump with sufficient volume and head capability to circulate fluid at a velocity of at

least 2 ft./min. through all parts of the loop.

DIAGRAM D - Typical Purge Cart

01 JAN 2014

Adjust the circulator pump module valves to connect the purge cart to the ground loop. Begin pumping water through the ground loop, ensuring that the intake of the pump stays submerged at all times by continuously adding water. Water flowing back from the return line should be directed below the water level in the barrel or flush tank to prevent air being mixed with the outgoing water.

Page 25 001223MAN-04

Once the lines have been filled and no more air bubbles are appearing in the line, adjust the circulator pump module valves to circulate water through the heat pump using the same technique as described above. When all air is removed reverse the flow of water through the lines by interchanging the flush cart lines and purge again. You will be able to visibly tell when all air is removed.

ADDING ANTIFREEZE SOLUTION

In most mid and northern areas of the US and in all of

Canada it is necessary to condition the loop fluid by the addition of some type of antifreeze solution so that it will not freeze during operation in the winter months. This antifreeze is required because the loop fluid will normally reach a low entering temperature of

28°F to 32°F (-2°C to 0°C)

and refrigerant temperatures inside the heat pump’s heat exchanger may be as low as

20°F (11°C)

cooler. See TABLE 14 for details of freeze protection provided by different concentrations.

TABLE 14 - Antifreeze Percentages

BY VOLUME

Protection to: 10°F 15°F 20°F 25°F

Methanol 25% 21% 16% 10%

Propylene Glycol 38% 30% 22% 15%

Protection to:

BY WEIGHT

10°F 15°F 20°F 25°F

Methanol 16.8% 13.6% 10% 6.3%

NOTE: Add enough antifreeze to allow for a temperature

20°F (11°C) lower than the expected lowest loop fluid temperature entering the heat pump.

Although many different antifreeze solutions have been employed in geothermal systems, the alcohols such as methanol or ethanol have the most desirable characteristics for groundloop applications. The overall heat transfer characteristics of these fluids remain high although care must be taken when handling pure alcohols since they are extremely flammable. Once mixed in a typical 25% by volume ratio with water the solution is not flammable. In situations where alcohols are not allowed as a loop fluid due to local regulations then propylene glycol is a non-toxic alternative which can be substituted . Propylene glycol should only be used in cases where alcohols are not permitted since the heat transfer characteristics are less desirable and it becomes more viscous at low temperatures, increasing pumping power.

The volume of fluid that your loop system holds can be closely estimated by totaling the number of ft. of each size pipe in the system and referencing

TABLE 15

the for approximate volume per 100 ft.

When the volume of the loop has been calculated and the appropriate amount of antifreeze is ready for addition by referencing

TABLE 14

, drain the equivalent amount of water from the flush cart or mixing barrel and replace it with the antifreeze.

When using alcohols, be sure to inject below the water

line to reduce initial volatility of the pure antifreeze. If the loop is large it may be necessary to refill the tank with antifreeze

001223MAN-04 Page 26 several times to get all the antifreeze into the loop. Pump the loop for 5 to 10 minutes longer to ensure the remaining fluid has been well mixed.

TABLE 15 - Volume of fluid per 100 ft. of pipe

Volume /100ft.

Type of Pipe Diameter Igal

USgal L

Rubber Hose

Polyethylene

1” 3.2

3/4” IPS SDR11

1” IPS SDR11

1-1/4” IPS SDR11 6.7

1-1/2” IPS SDR11 9.1

2” IPS SDR11

2.3

3.7

2.8

4.5

8.0

10.9

10.6

17.0

30.3

41.3

15.0 18.0 68.1

Heat Exchanger

Other Item Volumes

Average

Purge Cart Tank See cart manual

1.2

3.9 14.8

1.5

TBD

5.7

INITIAL PRESSURIZATION

At this point open all valves in the flow circuit and slowly close off the supply and return flush cart valves in a manner that leaves about 20-30 psig. on the system. If an air bladder expansion tank is used it should be charged to the above pressure before actual water pressure is put on the system .

Systems without an expansion tank will experience greater fluctuations in pressure between the heating and cooling seasons, causing pressure gauges to have different values as the loop temperature changes. This fluctuation is normal since expansion and contraction of the loop fluid must be handled by the elasticity of the plastic loop.

•

Pressurize the loop to a static pressure of 45 psig. when installing a system in the fall going into the heating season.

•

Pressurize the loop to a static pressure of 25 psig. when installing a system in the spring or summer going into the cooling season.

After operating the heat pump for a period of time, any residual air in the system should be bled off and the static pressure should be verified and adjusted if necessary. Add additional water / antifreeze mix with the purge cart to bring the pressure back to the original setting if required.

PIPE INSULATION

All ground loop piping inside the structure (between the structure entry point and the heat pump) should be insulated with 3/8” thick closed cell pipe insulation to prevent condensation and dripping onto floors or walls.

01 JAN 2014

01 JAN 2014 Page 27 001223MAN-04

Startup Procedure

The following steps describe how to perform the startup procedure of the geothermal heat pump.

The TF-Series Two-Stage R410a Air and Hydronic Startup Records located in this manual are used in conjunction with this startup procedure to provide a detailed record of the installation. A completed copy should be left on site, a copy kept on file by the installer and a copy should be sent to Maritime Geothermal Ltd.

Check the boxes or fill in the data as each step is completed. For data boxes, circle the appropriate units. Fill in the top section of all three copies, or one copy if photocopies can be made after the startup has been completed.

PRE-START INSPECTION

Ductwork:

1. Verify that all ductwork has been completed and is firmly attached to the unit. Verify that any dampers or diverters are

properly set for operation of the heat pump.

2. Verify that all registers are open and clear of any objects that would restrict the airflow.

3. Verify that a new air filter is installed and the cover is secured.

4. Verify the condensate drain is connected, properly vented and free of debris.

5. If a plenum heater has been installed, verify that it is securely fastened to the ductwork.

Indoor Loop (Hydronic Loop):

1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the indoor loop,

and that full flow is available to the heat pump.

2. Verify that the entire system has been flooded and all the air has been purged as much as possible. Further purging may

be required after the system has been operating for a while.

3. Verify that the loop contains the proper mix of antifreeze (if used) for the intended application. Record the type of antifreeze

and the mixture value on the startup sheet, circle % Vol. or % Weight.

4. Record the static loop pressure on the startup sheet.

Outdoor Loop (Ground Loop):

1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the ground loop,

and that full flow is available to the heat pump.



3. Verify that the loop contains the proper mix of antifreeze for the intended application. Record the type of antifreeze and the

mixture value on the startup sheet; circle % Vol. or % Weight.

4. Record the static loop pressure on the startup sheet.

Outdoor Loop (Ground Water):

1. Verify there are no leaks in the connections to the unit. Verify the water valve is installed and properly oriented in the

return line.

2. Verify that there is flow control in the return line.

Domestic Hot Water (if equipped):

1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the domestic

hot water tank.



3. Verify that the brown wire with the insulated terminal is disconnected in the electrical box. Refer to the schematic diagram

for more information.

Electrical:

1. Ensure the power to the unit is off. Ensure the power to the plenum heater is off if equipped.

2. Verify all high voltage connections. Ensure that there are no stray wire strands, all connections are tight and the ground

wire is connected tightly to the ground connector for the heat pump and plenum heater.

3. Record the fuse / circuit breaker size and wire gauge for the heat pump. Record the fuse / circuit breaker size, wire gauge

and size of the plenum heater if installed.

4. Verify that the control connections to the thermostat and plenum heater (if installed) are properly connected and all control

signals are off, so that the unit will not start up when the power is turned on.

5. Ensure all access panels except the lower one that provides access to the electrical box are in place.

001223MAN-04 Page 28 01 JAN 2014

UNIT STARTUP (AIR)

The unit is now ready to be started. The steps below outline the procedure for starting the unit and verifying proper operation of the unit. It is recommended that safety glasses be worn during the following procedures.

Preparation:

1. Remove the caps from the service ports and connect a refrigeration manifold set to the unit.

2. Turn the power on to the heat pump and set the thermostat to OFF. Set up the thermostat as per the instructions provided

with it so that it will function properly with the heat pump system (set for heat pump, not for heating and cooling). The O

signal should be set to active in cooling mode.

3. Measure the following voltages on the compressor contactor and record them on the startup sheet: L1-L2, L2-L3, L1-L3.

Air Heating Mode:

1. Set the aquastat so that both Stage 1 and Stage 1 are off.

2. Set the thermostat to heating mode and adjust the setpoint to activate Stage 1 and Stage 2. The fan should slowly ramp up

to speed after the time delay of the thermostat expires (if applicable) and the compressor will start (allow 30-60 seconds for

the water valve to open for ground water systems)

3. Check the refrigeration gauges. The suction and discharge pressures will depend on the loop temperatures, but they should

be about

90-110PSIG

and

260-360PSIG

respectively for a typical start-up.

4. Monitoring the refrigeration gauges while the unit runs. Record the following after 10 minutes of runtime:

1. Suction pressure

2. Discharge pressure

3. Duct Return temperature (poke a small hole in the flex collar and insert probe in airstream)

4. Duct Supply temperature (poke a small hole in the flex collar and insert probe in airstream)

5. Duct Delta T (should be between

22-32°F, 12-18°C

)

6. Outdoor Loop In (Supply In) temperature

7. Outdoor Loop Out (Supply Out) temperature

8. Outdoor Delta T (should be between

5-8°F, 3-4°C

)

9. Outdoor flow (if available)

10. Compressor L1(C) current (black wire, place meter between electrical box and compressor)

5. Adjust the thermostat setpoint to the desired room temperature and let the unit run through a cycle. Record the setpoint,

suction, discharge pressures when the unit shuts off.

6. For units with a desuperheater, turn the power off to the unit. Connect the brown wire with the blue insulated terminal to the

compressor contactor as shown in the electrical box diagram. Turn the DHW Switch in the unit post on. Turn the power to the

unit on.

7. Remove the electrical cover from the plenum heater. Place a current clamp meter around one of the supply wires. Turn on

the power to the plenum heater. Adjust the thermostat setpoint to

85°F (29°C)

. Verify that the current draw increase as

each stage is activated. (10kW has 2 stages, 15kW has 3 stages and 20kW has 4 stages).

8. Verify the DHW IN and DHW OUT temperatures (if applicable) by hand

(caution: pipes get hot).

If the DHW OUT line does

not become hotter than the DHW IN line the circulator is air locked. Bleed the air from the system and check the

temperature differential again to ensure there is flow from the circulator.

Cooling Mode:

1. Set the thermostat to cooling mode and adjust the setpoint to activate Stage 1 and Stage 2.


1. Suction pressure


3. Duct Return temperature

4. Duct Supply Out temperature

5. Duct Delta T



8. Outdoor Delta T

3. Adjust the thermostat setpoint to the desired room temperature if possible, otherwise set it just low enough to allow the unit

to run (ie 1°F (0.5°C) less than room temperature) and let the unit run through a cycle. Record the thermostat setpoint, suction,

And discharge pressures when the unit shuts off.

Final Inspection: (If the Hydronic Startup is to be performed as well, do the Final Inspection after is has been completed. )

1. Turn the power off to the unit (and plenum heater if installed) and remove all test equipment.

2. Install the electrical box cover and the access panel on the heat pump. Install the service port caps securely to prevent

refrigerant loss. Install the electrical cover on the plenum heater if applicable.

3. Do a final check for leaks in the ground water / ground loop system and ensure the area is clean.

4. Turn the power on to the unit and the plenum heater if installed. Set the thermostat to the final settings.

Startup Record:

1. The installer shall sign and date the Startup Record and have the homeowner sign as well. The installer shall leave the Startup

Record with the homeowner, retain a copy for filing and send a copy to Maritime Geothermal Ltd. for warranty registration.

01 JAN 2014 Page 29 001223MAN-04

Installation Site

Startup Record (Air) —TF-Series Size 25-75 Two-Stage R410a

Startup Date Installer

City

Province

Country

Company

Check boxes unless asked to record data. Circle units.

Model

Serial #

Homeowner Name

Ductwork

Homeowner Phone #


Ductwork is completed, dampers/ diverters are adjusted

Registers are open and clear of objects

Air filter and end cap are installed

Condensate Drain is connected, properly vented and free of debris

Ground Loop

System

Ground Water

System

Domestic Hot

Water

Electrical

Plenum heater is securely fastened (if applicable)

All shut-off valve are open (full flow available)

Loop is full and purged of air

Antifreeze type

Antifreeze concentration

Loop static pressure

Water Valve installed in return line

Flow control installed in return line

All shut-off valves are open

Lines are full and purged

Desuperheater pump wire is disconnected

High voltage connections are correct and securely fastened

Circuit breaker (or fuse) size and wire gauge for Heat Pump

Circuit breaker (or fuse) size, wire gauge, and Plenum Heater size

Low voltage connections are correct and securely fastened

Preparation

STARTUP DATA

Voltage across L1 and L2, L1 and L3, L2 and L3

Heating Mode

(10 minutes)

Cooling Mode

(10 minutes)

Suction Pressure / Discharge Pressure

Duct Return, Duct Supply, and Delta T

Outdoor In (Supply In), Outdoor Out (Supply Out), and Delta T

Outdoor Flow

Compressor L1 (black wire) current

Domestic Hot Water functioning

Thermostat setpoint and discharge pressure at cycle end


Duct Return, Indoor Out, and Delta T


Thermostat setpoint and suction pressure at cycle end

A

A

Igpm USgpm L/s

A

°F °C

In

In

In

In

% Volume % Weight

PSI kPa

Ga.

Ga. kW

VAC

Out psig kPa

°F °C

Out °F °C

°F °C psig kPa

Out psig kPa

°F °C

Out °F °C psig kPa

Date:

Installer Signature:

Homeowner Signature:

A total of three copies are required, one for the homeowner, one for the installer and on to be sent to Maritime Geothermal Ltd.

001223MAN-04 Page 30 01 JAN 2014

UNIT STARTUP (HYDRONIC)

The unit is now ready to be started. The steps below outline the procedure for starting the unit and verifying proper operation of the unit controlled by an aquastat. It is recommended that safety glasses be worn during the following procedures.

Preparation:

1. Remove the caps from the service ports and connect a refrigeration manifold set to the unit.

2. Turn the power on to the heat pump and set all controls (including all zone thermostats) to OFF.

3. Measure the following voltages on the compressor contactor and record them on the startup sheet: L1-L2, L2-L3, L1-L3.

Heating Mode:

1. Set the heating aquastat setpoints to activate Stage 1 and Stage 2. The compressor will start (allow 30-60 seconds for the

water valve to open for ground water systems) as well as the circulator pumps.

2. Check the refrigeration gauges. The suction and discharge pressures will depend on the loop temperatures, but they should

be about

90-110PSIG

and

260-360PSIG

respectively for a typical start-up.


1. Suction pressure


3. Indoor Loop In (Hot In) temperature

4. Indoor Loop Out (Hot Out) temperature

5. Indoor Delta T (should be between

8-12°F, 4-6°C

)



8. Outdoor Delta T (should be between

5-8°F, 3-4°C

)

9. Outdoor flow (if available)

10. Compressor L1(C) current (black wire, place meter between electrical box and compressor)

4. Adjust the aquastat setpoint to the desired buffer tank temperature and let the unit run through a cycle. Record the setpoint,

suction, and discharge pressures when the unit shuts off.

5. Proceed to Final Inspection if the desuperheater (if applicable) has already been tested during the Air Startup.

6. Open a zone (or zones) and let the tank cool down until Stage 2. is activated. Close the zone(s) again.

7. Turn the power off to the unit. Connect the brown wire with the blue insulated terminal to the compressor contactor as shown in

the electrical box diagram. Turn the DHW Switch in the unit post on. Turn the power to the unit on.

8. Verify the DHW IN and DHW OUT temperatures (if applicable) by hand

(caution: pipes get hot).

If the DHW OUT line does

not become hotter than the DHW IN line the circulator is air locked. Bleed the air from the system and check the

temperature differential again to ensure there is flow from the circulator.

Final Inspection:

1. Turn the power off to the unit and remove all test equipment.

2. Install the electrical box cover and the access panel on the heat pump. Install the service port caps securely to prevent

refrigerant loss.

3. Do a final check for leaks in the ground water / ground loop system and ensure the area is clean.

4. Turn the power on to the unit. Set the aquastat to the final settings and record the values.

Startup Record:

1. The installer shall sign and date the Startup Record and have the homeowner sign as well. The installer shall leave the Startup

Record with the homeowner, retain a copy for filing and send a copy to Maritime Geothermal Ltd. for warranty registration.

01 JAN 2014 Page 31 001223MAN-04

Startup Record Sheet (Hydronic)—TF-Series Size 25-75 Two-Stage R410a

Installation Site Startup Date Installer

City Company

Province

Country

Model

Serial #

Indoor Loop

(Hydronic)

Check boxes unless asked to record data, circle units




Antifreeze type

Antifreeze concentration % Volume % Weight

Ground Loop

System




Antifreeze type

Antifreeze concentration

PSI kPa

% Volume % Weight

Ground Water

System

Domestic Hot

Water

Electrical


Water Valve installed in return line

Flow control installed in return line

All shut-off valves are open

Lines are full and purged

Desuperheater pump wire is disconnected

High voltage connections are correct and securely fastened

Circuit breaker (or fuse) size and wire gauge for Heat Pump

Circulator pump voltages (Outdoor 1, Outdoor 2, Indoor 1)

Low voltage connections are correct and securely fastened

PSI kPa

A

V

Ga.

V

V

Preparation

STARTUP DATA

Voltage across L1 and L2, L1 and L3, L2 and L3

Heating Mode

(10 minutes)

Final Settings


Indoor In (Hot In), Indoor Out (Hot Out), and Delta T


Outdoor Flow

Compressor L1 (black wire) current

Domestic Hot Water functioning

Aquastat setpoint and discharge pressure at cycle end

S1 Setpoint, S1 Delta, S2 Setpoint, S2 Delta

In

In Out

Igpm USgpm L/s

°F °C

A

°F °C psig kPa

°F °C

VAC

Out psig kPa

°F °C

Date:

Installer Signature:

Homeowner Signature:

A total of three copies are required, one for the homeowner, one for the installer and on to be sent to Maritime Geothermal Ltd.

001223MAN-04 Page 32 01 JAN 2014

General Maintenance

Air Filter

Item Interval

6 months

GENERAL MAINTENANCE SCHEDULE

Procedure

Inspect for dirt. Replace if necessary.

Contactor

Condensate Drain

1 year

1 year

Inspect for pitted or burned points. Replace if necessary.

Inspect for clogs. Remove and clean if necessary.

Heat exchanger

As required* Clean as per HEAT EXHCANGER FLUSING PROCEDURE below.

*Generally not required for closed loop systems. Whenever system performance is reduced for open loop.

COAXIAL HEAT EXCHANGER FLUSHING PROCEDURE—GROUNDWATER

STEP 1

Isolate the heat exchanger by closing the valves in the IN and OUT ports to the heat exchanger.

STEP 2

Blow out the heat exchanger into a clean 5 gallon bucket using compressed air.

STEP 3

If a purge cart is not available, use a 5 gallon plastic bucket, a circulator and some plastic piping to create a makeshift pump system. Connect a the inlet and outlet to the heat exchanger ports.*

STEP 4

Place 2 gallons of RYDLYME in the purge cart (or bucket). Circulate the fluid through the heat exchanger for at least 2 hours (3 recommended).

STEP 5

Disconnect the purge system dispose of the solution. RYDLYME is non-toxic and biodegradable and as such can be poured down a drain.

STEP 6

Connect fresh water and a drain to the heat exchanger ports and flush the exchanger for several minutes.

STEP 7

Return the plumbing to its original configuration and open the IN and OUT valves. Operate the system and check for improved performance.

*Depending on the plumbing, there should be either unions or boiler drains for to access the heat exchanger.

COAXIAL HEAT EXCHANGER FLUSHING PROCEDURE—GROUND LOOP

STEP 1

Isolate the heat exchanger by placing the pump module valves in the exchanger flushing position.

STEP 2

Connect a compressed air and a drain pipe to the pump module purge ports and blow the anti-freeze solution into a clean 5 gallon bucket.

STEP 3

Connect a purge cart to the pump module purge ports.

STEP 4

Place 2 gallons of RYDLYME in the purge cart. Circulate the fluid through the heat exchanger for at least 2 hours (3 recommended).

STEP 5

Disconnect the purge cart and dispose of the solution. RYDLYME is non-toxic and biodegradable and as such can be poured down a drain. Clean the purge cart thoroughly.

STEP 6

Connect fresh water and a drain to the pump module purge ports and flush the exchanger for several minutes.

STEP 7

Blow the heat exchanger out with compressed air as per STEP 2 and dump the water down a drain.

STEP 8

Connect the purge cart to the pump module purge ports. Re-fill and purge the heat exchanger with as per standard procedures (the anti-freeze from STEP 2 can be re-used).

STEP 9

Disconnect the purge cart and set the pump module valves back to the original positions.

STEP 10

Operate the system and check for improved performance.

*Depending on the plumbing, there should be either unions or boiler drains for to access the heat exchanger.

01 JAN 2014 Page 33 001223MAN-04

Troubleshooting Guide

The following steps are for troubleshooting the geothermal heat pump. If the problem is with the domestic hot water or the plenum heater, proceed to those sections at the end of the troubleshooting guide. Repair procedures and reference refrigeration circuit diagrams can be found at the end of the troubleshooting guide.

STEP 1: Verify that the display is present on the thermostat. If it is not, proceed to POWER SUPPLY TROUBLESHOOTING,

otherwise proceed to STEP 2.

STEP 2: Remove the door and electrical box cover and check to see if there is a fault code on the control board. If there is, record

the fault code. Turn the power off, wait 10 seconds and turn the power back on. Set the thermostat to call for heating or

cooling depending on the season, or set the aquastat to call for heating.

STEP 3 (Air): If a 24VAC signal does not appear across Y1 and C of the terminal strip within 6 minutes, proceed to the

THERMOSTAT TROUBLESHOOTING section, otherwise proceed to STEP 4.

STEP 3 (Hydronic): If a 24VAC signal does not appear across Y1A and CA of the terminal strip, proceed to the HYDRONIC

TROUBLESHOOTING - AQUASTAT section, otherwise proceed to STEP 4.

STEP 4: If a fault code appears once a signal is present at Y1 and the compressor does not attempt to start, proceed to the

FAULT CODE TROUBLESHOOTING section, otherwise proceed to STEP 5.

STEP 5: If The compressor does not attempt to start, attempts to start but cannot, starts hard, or starts but does not sound normal,

proceed to the COMPRESSOR TROUBLESHOOTING section, otherwise proceed to STEP 6.

STEP 6: If the compressor starts and sounds normal, this means the compressor is OK and the problem lies elsewhere. Proceed to

the AIR OPERATION TROUBLESHOOTING section or the HYDRONIC OPERATION TROUBLESHOOTING section.

NOTE: To speed up the troubleshooting process, the Test Jumper on the safety board can be placed to the YES position to change

the anti-short cycle timer to 5 seconds. Be sure to set it back to NO when servicing is complete.

POWER SUPPLY TROUBLESHOOTING

Fault

No power to the heat pump

Possible Cause

Disconnect switch open

(if installed)

Fuse blown /

Breaker Tripped.

Verification Recommended Action

Verify disconnect switch is in the

ON position.

Determine why the disconnect switch was opened, if all is OK close the switch.

At heat pump disconnect box, voltmeter shows 230VAC on the line side but not on the load side.

Reset breaker or replace fuse with proper size and type. (Timedelay type “D”)

No display on thermostat.

Transformer breaker tripped.

Faulty transformer

Faulty wiring between heat pump and thermostat.

Faulty Thermostat.

Breaker on transformer is sticking out.

Push breaker back in. If it trips again locate cause of short circuit and correct.

Transformer breaker is not tripped, 230VAC is present across L1 and L3 of the compressor contactor but 24VAC is not present across R

H

and C of the terminal strip.

Replace transformer.

24VAC is not present across C and R(R

H

) of the thermostat.

Correct the wiring.

001223MAN-04

24VAC is present across C and R

(R

H

) of the thermostat but thermostat has no display.

Replace thermostat.

Page 34 01 JAN 2014

THERMOSTAT TROUBLESHOOTING

Fault

No Y1 signal to heat pump

(after 6 minutes)

Possible Cause

Incorrect thermostat setup.

Faulty thermostat to heat pump wiring.

Faulty thermostat.


Thermostat does not indicate a call for heat. No 24VAC signal present across C and Stage 1 of the thermostat

Correct the setup.

24VAC signal present across Stage

1 and C of the thermostat but not present across Y1 and C of the terminal strip.

Correct or replace wiring

No 24VAC between Stage 1 and C of the thermostat when a call is indicated on the thermostat.

Replace thermostat.

Fault

Fault Code 1

(High Pressure

Control)

Fault Code 2

(Low Pressure

Control)

Fault Code 3

(Flow Switch)

FAULT CODE TROUBLESHOOTING

Possible Cause Verification Recommended Action

Faulty High Pressure Control (open).

* Must be a signal present on Y1 for this test.

*HP pressures must be at static levels.

Verify if there is 24VAC across HP1 on the control board and C of the terminal strip, as well as HP2 and C.

Replace high pressure control if voltage is present on HP1 but not on HP2.

Faulty control board.

24VAC is present across HP1 and

C1, and HP2 and C, but no voltage is present across CC on the control board and C.

Replace control board

.

Faulty Low pressure control (open).

* Must be a signal present on Y1 for this test.

*HP pressures must be at static levels.

Verify if there is 24VAC across LP1 on the control board and C of the terminal strip, as well as LP2 and C.


Unit out of refrigerant.

Replace high pressure control if voltage is present on LP1 but not on LP1.

24VAC is present across LP1 and C, and LP2 and C, but no voltage is present across CC on the control board

and C.


.

Check static refrigeration pressure of the unit for a very low value.

Locate the leak and repair it.

Spray nine, a sniffer and dye are common methods of locating a leak.

Flow switch jumper removed or faulty.

Flow switch faulty.

(Only if installed)

Verify jumper is in place between pins marked FLOW SWITCH.

Place a jumper if missing.


Verify 24VAC is present between each flow switch pin on the control board and the C terminal of the terminal strip while there is flow through the unit.

Replace flow switch if signal is not present at both terminals on the control board

.

24VAC is present across each

FLOW SWITCH terminal and C, but not voltage is present across CC on the control board and C.


.

01 JAN 2014 Page 35 001223MAN-04

COMPRESSOR TROUBLESHOOTING

Fault

Compressor will

not start

Possible Cause

Faulty control board

.

Faulty run capacitor.

(Single phase only)

Loose or faulty wiring.

Faulty compressor contactor.

Thermal overload on compressor tripped.

Burned out motor

(open winding)

Burned out motor

(shorted windings)


Measuring from C on the terminal strip, verify there is voltage at Y,

HP1, HP2, LP1, LP2, and both flow pins but no voltage present at CC.


Check value with capacitance meter. Replace if faulty.

Should match label on capacitor.

Compressor will hum while trying to start and then trip its overload.

.

Check all compressor wiring, including inside compressor electrical box.

Fix any loose connections. Replace any damaged wires.

Voltage on line side with contactor held closed, but no voltage on one or both terminals on the load side.

Points pitted or burned.

Or, 24VAC across coil but contactor will not engage.

Replace contactor.

Ohmmeter shows reading when placed across R and S terminals

Proceed to Operation Troubleshooting to determine the cause and infinity between C & R or C & S.

A valid resistance reading is present of the thermal overload trip. again after the compressor has cooled down.

Remove wires from compressor.

Ohmmeter shows infinite resistance between any two terminals Note: Be sure compressor overload has had a chance to reset. If compressor is hot this may take several hours.

Replace the compressor.

Remove wires from compressor.

Resistance between any two terminals is below the specified value.

Replace the compressor.

Compressor starts hard

Compressor

Stage 2 will not activate

001223MAN-04

Motor shorted to ground. Remove wires from compressor.

Check for infinite resistance between each terminal and ground.

If any terminal to ground is not infinite replace the compressor.

Seized compressor due to locked or damaged mechanism.

Compressor attempts to start but trips its internal overload after a few seconds. (Run capacitor already verified)

Attempt to “rock” compressor free.

If normal operation cannot be established, replace compressor.

Start capacitor faulty.

(Single phase only)

Check with capacitance meter.

Check for black residue around blowout hole on top of capacitor.

Replace if faulty.

Remove black residue in electrical box if any.

Potential Relay faulty.

(Single phase only)

Replace if faulty.

Compressor is “tight” due to damaged mechanism

Compressor attempts to start but trips its internal overload after a few seconds. Run capacitor has been verified already.

Attempt to “rock” compressor free.

If normal operation cannot be established, replace compressor.

Faulty Stage 2 module

Replace with new one and verify compressor starts properly.

Verify if 24VAC is present across

Y2 and C of the terminal strip.

Replace module if signal is present. Check wiring if signal is not present.

Page 36 01 JAN 2014

Fault

High Discharge

Pressure

AIR OPERATION TROUBLESHOOTING - HEATING MODE


Air Flow

TXV adjusted too far closed.

TXV stuck almost closed or partially blocked by foreign object.

See Fan Troubleshooting section Correct the problem.

Verify superheat. It should be between 8-12°F (3-6°C). Superheat will be high if TXV is closed too far.

Adjust TXV to obtain 8-12°F

(3-6°C) superheat.

Adjusting the TXV does not affect the superheat or the suction pressure.

Adjust the TXV all the way in and out a few times to loosen it. Replace

TXV if this does not work.

Filter-drier plugged

Unit is overcharged.

(Only possible if unit has been opened in the field and incorrectly charged)

Feel each end of the filter- drier, it should be the same temperature.

If there is a temperature difference then it is plugged. Also causes low suction pressure.

Replace filter-drier.

High sub-cooling, low delta T across air coil.

Remove 1/2lb of refrigerant at a time and verify that the discharge pressure reduces.

Low Suction

Pressure

01 JAN 2014

Low or no Outdoor liquid flow

Delta T across the Outdoor Loop ports should be between 5-7°F

(3-4°C), or compare pressure drop to the tables for the unit.

Determine the cause of the flow restriction and correct it.

Verify pumps are working and sized correctly for ground loop systems.

Verify well pump and water valve is working for ground water systems.

Increase the size of the ground loop. Entering liquid temperature too cold.

Dirty or fouled coaxial heat exchanger.

(typically for ground water, unlikely for ground loop)

Disconnect the water lines and check the inside of the pipes for scale deposits.

Return air too cold


Measure the entering liquid temperature. Most likely caused by undersized ground loop.

Measure return air temperature.

Should be above 60°F (15°C).

Have a qualified service technician backflush the coaxial exchanger.

Restrict air flow temporarily until room comes up to temperature.

Adjusting the TXV does not affect the superheat or the suction pressure. TXV may be frosting up.



Leaking check valve.

(Located in the receiver liquid line out).

Valve will be cold. Remove the cap from the roto-lock fitting on the receiver and close the rotolock valve. Unit should function normally, there may be a sound change as the roto-lock is closed.

Try tapping the valve and switching from air heat to water heat a few times. Replace the check valve if the problem persists.

Low refrigerant charge. Entering liquid temperature, flow and entering air temperature are good but suction is low. Check static refrigeration pressure of the unit for a very low value.

Locate the leak and repair it. Spray nine, a sniffer and dye are common methods of locating a leak.

Faulty compressor, not pumping.

Pressures change only slightly from static values when compressor is started.

Replace compressor.

Page 37 001223MAN-04

Fault

AIR OPERATION TROUBLESHOOTING - HEATING MODE


High Suction

Pressure

(may appear to not be pumping)

TXV adjusted too far open.

TXV stuck open.

Verify superheat. It should be between 8-12°F (3-6°C). Superheat will be low if TXV is open too far.


(3-6°C) superheat.

Leaking reversing valve#1.


Adjusting the TXV does not affect the superheat or the suction pressure. Low super heat and discharge pressure.



Reversing valve has uniform temperature, common suction line is warm, compressor is running hot.

Replace reversing valve.

Reversing valve has uniform temperature, common suction line is warm, compressor is running hot. Does not work in air heat or water heat but does work in air cool.


Compressor frosting up

TXV frosting up

Random high pressure trip

(does not occur while on site)

See Low Suction

Pressure in this section.



Attempt to adjust the TXV all the way out and all the way in a few times to loosen it. Replace TXV if this does not work.


Points pitted or burned. Contactor sometimes sticks causing the compressor to run without the fan, tripping the high pressure control.

Intermittent fan.

Replace contactor.

See Fan Troubleshooting section. Correct the problem.

Fault

Heating instead of cooling

AIR OPERATION TROUBLESHOOTING - COOLING MODE


Thermostat not set up properly.

Faulty reversing valve#1 solenoid coil.

Verify that there is 24VAC across

O/B/W1 and C of the terminal strip when calling for cooling.

Verify solenoid by removing it from the shaft while the unit is running.

There should be a loud “whoosh” sound when it is removed.

Correct thermostat setup.

Change to a different thermostat.

Replace solenoid if faulty.

High Discharge pressure

Faulty reversing valve#1. A click can be heard when the coil is energized but the unit continues to heat instead of cool.



Entering liquid temperature too warm.

Delta T across the Outdoor Loop ports should be between 8-12F

(4-7C), or compare pressure drop to the tables for the unit.

Most likely caused by undersized ground loop.


Verify pumps are working for ground loop systems. Verify well pump and water valve is working for ground water systems.

Verify the ground loop sizing. Increase the size of the ground loop if undersized.

001223MAN-04 Page 38 01 JAN 2014

Fault

High Discharge pressure

(continued)

AIR OPERATION TROUBLESHOOTING - COOLING MODE







High sub-cooling, low delta T across water coil.



High Suction

Pressure


TXV adjusted too far open. Verify superheat. It should be between 8-12°F (3-6°C). Superheat will be low if TXV is open too far.


(3-6°C) superheat.

TXV stuck open. Adjusting the TXV does not affect the superheat or the suction pressure. Low super heat and discharge pressure.

Adjust the TXV all the way in and out a few times to loosen it. Replace TXV if this does not work.

Replace reversing valve#1. Leaking reversing valve#1. Reversing valve is the same temperature on both ends of body, common suction line is warm, compressor is running hot.

Low Suction

Pressure

Air Flow



(Located in the receiver liquid line out).


Valve will be cold. Remove the cap from the roto-lock fitting on the receiver and close the rotolock valve. Unit should function normally, there may be a sound change as the roto-lock is closed.


Try tapping the valve and switching from air cool to water heat a few times. Replace the check valve if the problem persists.

Low or no refrigerant charge.

See Fan Troubleshooting section.

Note: low airflow will cause the air coil to ice up once the suction drops below

90PSIG

.

Correct the problem.


Entering air temperature and airflow are good but suction is low.

Check static refrigeration pressure of unit for very low value.




Replace compressor.


See Low Suction


TXV frosting up




Random Low

Pressure trip

(does not occur while there)

01 JAN 2014


Intermittent fan.

Points pitted or burned. Contactor sometimes sticks causing the compressor to run without the fan, tripping the low pressure control.

Replace contactor.

See Fan Troubleshooting section. Correct the problem.

Page 39 001223MAN-04

Fault

Low Airflow

Possible Cause

Dirty air filter

Dirty air coil.

Poor Ductwork

FAN TROUBLESHOOTING

Inspect.

Verification

Inspect.

Measure delta T between supply and return ducts at the unit, it in heating mode, it should not be above 30°F(17°C).

Recommended Action

Replace.

Clean.

The ECM fan will provide proper airflow up to 0.5 inH2o for 1/2HP motors and 0.7 inH2o for 1HP motors. The ductwork is poorly designed or greatly undersized if the fan motor cannot provide the required airflow.

Select a higher setting. Air flow selected on Tap

Board is too low.

Check selection on Air Flow Tap

Board.

Fan operating on wrong Stage speed

Air flow reduction is enabled.

Fan Control Signal Harness is loose.

AR1 and AR2 are connected with a dry contact.

Air flow reduction may not be feasible with poor ductwork, and/or lower Air Flow selections. Increase settings until unit operates properly.

Verify that the connector is properly inserted into the fan motor. Gently tug on each wire to verify it is properly inserted into the connector.

Repair any loose connections.

Faulty Control Signal Harness or faulty motor head.

Ensure signal is present on terminal strip.

Measure 24VAC between White (pin

3) and the following at the fan control signal harness (insert probes in connector where wire is inserted, do not unplug the connector):

Circulation = Grey (pin 15)

Stage 1 = Yellow (pin 6)

Stage 2=Yellow/Black (pin14)

Stage 3 = Violet (pin 2)

If proper signal isn’t present, replace Fan Control Signal Harness. If proper signal is present, replace fan motor head.

Fan not operating or operating intermittently

Fan Control Signal Harness and/or Fan Power

Harness is loose.

Verify that the connector is properly inserted into the fan motor. Gently tug on each wire to verify it is properly inserted into the connector.

Repair any loose connections.

001223MAN-04

Faulty Control Signal Harness or faulty motor head.

Ensure signal is present on terminal strip.

Measure 24VAC between White (pin

3) and the following at the fan control signal harness (insert probes in connector where wire is inserted, do not unplug the connector):

Circulation = Grey (pin 15)

Stage 1 = Yellow (pin 6)

Stage 2=Yellow/Black (pin14)

Stage 3 = Violet (pin 2)

If proper signal isn’t present, replace Fan Control Signal Harness. If proper signal is present, replace fan motor head.

Faulty Fan Power Harness or faulty motor.

Insert the tips of the voltmeter probes into the back of the connector at the fan to measure the voltage across the red and black wires, value should be 230VAC

Replace Power Harness if

230VAC is not present, replace motor if 230VAC is present

Page 40 01 JAN 2014

Fault

No display on aquastat.

HYDRONIC TROUBLE SHOOTING - AQUASTAT

Possible Cause

Transformer breaker tripped.

Verification

Breaker on transformer is sticking out.


Push breaker back in. If it trips again locate cause of short circuit and correct.

Faulty transformer Transformer breaker is not tripped,

230VAC is present across L1 and L3 of the compressor contactor but

24VAC is not present across R and

C.


Faulty wiring between heat pump and aquastats.

24VAC is not present across 24V and COM at the top of the aquastat.

Correct the wiring.

No Y1A signal to heat pump

Faulty aquastat.

Incorrect aquastat setup.

24VAC is present across 24Vand

COM of the aquastat but there is no display.

Replace aquastat.

Aquastat does not indicate S1 on the display.

Correct the setup.

Faulty aquastat to heat pump wiring.

24VAC not present across Stage 1 C Correct or replace wiring. and COM of the aquastat.



1 NO and COM of the aquastat but not present across Y1A and CA of the terminal strip.

Correct or replace wiring.

Faulty aquastat. No 24VAC between Stage 1 NO and COM of the aquastat when S1 is indicated on the aquastat display.

Replace aquastat.

No Y2A signal to heat pump

Incorrect aquastat setup. Aquastat does not indicate S2 on the display.


24VAC not present across Stage 2

C and COM of the aquastat.

Correct the setup.


Setting(s) not retained


Faulty aquastat.

Faulty aquastat


2 NO and COM of the aquastat but not present across Y2A and CA of the terminal strip.


No 24VAC between Stage 2 NO and COM of the aquastat when S2 is indicated on the aquastat display.

Replace aquastat.

E2 error message. Can cause the unit to trip a safety control if the setting is too high or low.

Replace aquastat.

01 JAN 2014 Page 41 001223MAN-04

Fault

HYDRONIC OPERATION TROUBLESHOOTING - HEATING MODE

Possible Cause

High Discharge

Pressure

Aquastat set too high.

Low or no Indoor loop flow.

TXV adjusted too far closed.


Verify aquastat setting

Verify superheat. It should be between 8-12°F (3-6°C). Superheat will be high if TXV is closed too far.

Lower aquastat setting to recommended value of

115°F (46°C)

Delta T across the Indoor Loop ports should be between 8-12°F (3-6°C), or compare pressure drop to the tables for the unit.

Verify pump is working and sized correctly. Check for restrictions in the circuit, ie valve partially closed.


(3-6°C) superheat.




Filter-drier plugged Feel each end of the filter- drier, it should be the same temperature. If there is a temperature difference then it is plugged. Also causes low suction pressure.

Replace filter-drier.



High sub-cooling, low delta T across air coil.


Faulty reversing valve#2 solenoid coil.


There should be a loud “whoosh” sound when it is removed.


Low Suction

Pressure

Faulty reversing valve#2. A click can be heard when the coil is energized but the unit will not switch to water heating mode.



Entering liquid temperature too cold.

Delta T across the Outdoor Loop ports should be between 5-7°F

(3-4°C), or compare pressure drop to the tables for the unit.

Measure the entering liquid temperature. Most likely caused by undersized ground loop.


Verify pumps are working and sized correctly for ground loop systems.

Verify well pump and water valve is working for ground water systems.

Increase the size of the ground loop.




Indoor Loop entering liquid temperature too cold

Measure temperature. Should be above 60°F (15°C).


Restrict Indoor liquid flow temporarily until buffer tank comes up to temperature.

001223MAN-04 Page 42 01 JAN 2014

Fault

Low Suction

Pressure

(continued)

HYDRONIC OPERATION TROUBLESHOOTING - HEATING MODE






Faulty NO solenoid valve coil.


There should be an audible click sound if the solenoid is working.

Faulty NO solenoid valve. A click can be heard when the coil is energized but the valve is cold instead of warm.


Replace NO valve.


(Located in parallel with the NO valve.

Valve will be cold instead of warm. Try tapping the valve and switching from air heat to water heat a few times. Replace the check valve if the problem persists.

Low refrigerant charge. Entering liquid temperature, flow and entering air temperature are good but suction is low. Check static refrigeration pressure of the unit for a very low value.





Replace compressor.

High Suction

Pressure



TXV adjusted too far open.

Reversing valve is the same temperature on both ends of body, common suction line is warm, compressor is running hot.

Verify superheat. It should be between 8-12°F (3-6°C). Superheat will be low if TXV is open too far.



(3-6°C) superheat.

TXV stuck open. Adjusting the TXV does not affect the superheat or the suction pressure. Low super heat and discharge pressure.




(Located beside reversing valve#2)

3/4” pipe and check valve going into air coil is hot. Unit works properly in air heating mode.

Replace check valve.


See Low Suction


TXV frosting up





Random high pressure trip

(does not occur while on site)


Points pitted or burned. Contactor sometimes sticks causing the compressor to run when it shouldn’t, tripping the high pressure control.

Replace contactor.

Intermittent Indoor circulator.

Verify wiring is good Correct the wiring or replace the circulator.

01 JAN 2014 Page 43 001223MAN-04

Fault

PLENUM HEATER TROUBLE SHOOTING


No 230VAC across plenum heater L1 and L2

Disconnect switch open.

(if installed)

Verify disconnect switch is in the ON position.

Determine why the disconnect switch was opened, if all is OK close the switch.

Fuse blown /

Breaker Tripped.

At plenum heater disconnect box (if installed), voltmeter shows voltage on the line side but not on the load side. Check if breaker is tripped.

Reset breaker or replace fuse at plenum heater disconnect box.

Replace fuse with proper size and type. (Time-delay type “D”)

Same “Line” to L1 and L2 Measuring L1 to ground and L2 to ground both yield 115VAC, but L1 to

L2 yields 0VAC.

Correct wiring.

No W2 signal at

Heat pump terminal strip

No call for auxiliary or emergency heat from thermostat.

Verify that the thermostat is indicating that auxiliary or emergency heat should be on.

Set thermostat to engage auxiliary or emergency heat (note some thermostats require a jumper between auxiliary and emergency.

Check the thermostat manual).

Faulty thermostat.

Faulty thermostat.

Thermostat doesn’t indicate a call for auxiliary or emergency when it should.

Thermostat indicates auxiliary or emergency but no 24VAC signal present across C and the auxiliary and/or emergency pin at the thermostat.

Replace thermostat.

Replace thermostat.

Faulty thermostat wiring. 24VAC signal is present across C and the auxiliary and/or emergency pin at the thermostat but no 24VAC signal is present across W2 and C at the heat pump terminal strip.

Correct wiring.


No 24VAC signal from C to ground at the plenum heater control connector

Plenum Heater transformer is burned out.

Plenum heater control board is faulty.

Voltmeter does not show 24VAC across transformer secondary winding.

Transformer tested OK in previous step.

Replace control board.

No 24VAC signal from 1 to ground at the plenum heater control connector

Faulty wiring. 24VAC present across C and ground at the plenum heater, but not across ground of the plenum heater and I of the heat pump terminal strip

Correct wiring.

Faulty wiring.

No 24VAC signal from 1 to ground at the plenum heater control connector

Faulty Plenum Heater

Relay in heat pump

001223MAN-04

If previous step tested OK, 24VAC is present across ground of the plenum heart and 1 of the heat pump terminal strip, but not across ground of the plenum heater and 1 of the plenum heater.

Correct wiring.

24VAC is present across pin 1 and pin 3 of the relay, 24VAC is present from heat pump terminal strip I to plenum heater ground, but not from heat pump terminal strip 1 to plenum heater ground.

Replace relay.

Page 44 01 JAN 2014

Fault

PLENUM HEATER TROUBLE SHOOTING

Possible Cause Verification

Thermal overload is tripped.

Fan not operating See Fan Not Operating section


Correct problem. Reset thermal overload.

Faulty overload Reset thermal overload Replace if faulty.

Fault

Insufficient hot water

(Tank Problem)

DOMESTIC HOT WATER (DHW) TROUBLE SHOOTING


Thermostat on hot water tank set too low. Should be set at 120°F. (140°F if required by local code)

Breaker tripped, or fuse blown in electrical supply to hot water tank.

Reset button tripped on hot water tank.

Visually inspect the setting.

Check both line and load sides of fuses. If switch is open determine why.

Check voltage at elements with multimeter.

Readjust the setting to 120°F.

(140°F if required by local code)

Replace blown fuse or reset breaker.

Push reset button.

Insufficient hot water

(Heat Pump

Problem)

Circulator pump not operating.

Visually inspect the pump to see if shaft is turning. Use an amprobe to measure current draw.

Blockage or restriction in the water line or hot water heat exchanger.

Check water flow and power to pump. Check water lines for obstruction

Faulty DHW cutout (failed open).

Check contact operation. Should close at 120°F and open at 140°F.

Heat pump not running enough hours to make sufficient hot water.

Note the amount of time the heat pump runs in any given hour.

Water is too hot. Faulty DHW cutout (failed closed).

Check contact operation. Should close at 120°F and open at 140°F.

Thermostat on hot water tank set too high. Should be set at 120°F. (140°F if required by local code)

Visually inspect the setting.

Replace if faulty.

Remove obstruction in water lines. Acid treat the domestic hot water coil.

Replace DHW cutout if faulty.

Temporarily turn up the tank thermostats until colder weather creates longer run cycles.

Replace DHW cutout if faulty.

Readjust the setting to 120°F.

(140°F if required by local code)

Refrigeration

In-line Flowmeter

01 JAN 2014

Trouble Shooting Tools

Digital

Multimeter -

Voltmeter /

Page 45

Dole flow control Valve

The Dole® flow control is a simple, selfcleaning device designed to deliver a constant volume of water from any outlet whether the pressure is 15 psig or as high as 125 psi. The controlling mechanism consists of a flexible orifice that varies its area inversely with pressure so that a constant flow is maintained.

001223MAN-04

REPAIR PROCEDURES

PUMP DOWN PROCEDURE

STEP 1

Connect the refrigerant recovery unit to the heat pump service ports via a refrigeration charging manifold and to a recovery tank as per the instructions in the recovery unit manual. If there was a compressor

burn out, the refrigerant cannot be reused and must be disposed of according to local codes.

STEP 2

All water coil heat exchangers must either have full flow or be completely drained of fluid before recovery begins. Failure to do so can freeze and rupture the heat exchanger, voiding its warranty. (Note that this does not apply to double wall domestic hot water exchangers (desuperheater coils)

STEP 3

Ensure all hose connections are properly purged of air. Start the refrigerant recovery as per the instructions in the recovery unit manual.

STEP 4

Allow the recovery unit suction pressure to reach a vacuum. Once achieved, close the charging manifold valves. Shut down, purge and disconnect the recovery unit as per the instructions in its manual. Ensure the recovery tank valve is closed before disconnecting the hose to it.

STEP 5

Connect a nitrogen tank to the charging manifold and add nitrogen to the heat pump until a positive pressure of 5-10PSIG is reached. This prevents air from being sucked into the unit by the vacuum when the hoses are disconnected.

STEP 6

The heat pump is now ready for repairs. Always ensure nitrogen is flowing through the system during any soldering procedures to prevent soot buildup inside the pipes. Maritime Geothermal Ltd. recommends replacing the liquid line filter-drier anytime the refrigeration system has been exposed to the atmosphere.

VACUUM AND CHARGING PROCEDURE

STEP 1

After completion of repairs and nitrogen pressure testing, the refrigeration circuit is ready for vacuuming.

STEP 2

Release the refrigerant circuit pressure and connect the vacuum pump to the charging manifold. Start the vacuum pump and open the charging manifold valves. Vacuum until the vacuum gauge remains at less than 500 microns for at least 1 minute with the vacuum pump valve closed.

STEP 3

Close the charging manifold valves then shut off and disconnect the vacuum pump. Place a refrigerant tank with the proper refrigerant on a scale and connect it to the charging manifold. Purge the hose to the tank.

STEP 4

Weigh in the appropriate amount of refrigerant through the low pressure (suction) service port. Refer to the label on the unit or the

Refrigerant Charge Chart

in the

MODEL SPECIFIC INFORMATION

section for the proper charge amount.

STEP 5

If the unit will not accept the entire charge, the remainder can be added through the low pressure service port after the unit has been restarted.

REPLACMENT PROCEDURE FOR A COMPRESSOR BURN-OUT

STEP 1

Pump down the unit as per the Pump Down Procedure above. Discard the refrigerant according to local codes.

STEP 2

Replace the compressor. Replace the liquid line filter-drier.

STEP 3

Vacuum the unit until it remains under 500 microns for several minutes with the vacuum pump valve closed.

STEP 4

Charge the unit with NEW REFRIGERANT and operate it for continuously for 2 hours. Pump down the unit and replace the filter-drier. Vacuum the unit until it remains under 500 microns for several minutes with the vacuum pump valve closed.

STEP 5

Charge the unit (refrigerant can be re-used) and operate it for 2-3 days. Perform an acid test. If it fails, pump down the unit and replace the filter-drier.

STEP 6

Charge the unit (refrigerant can be re-used) and operate it for 2 weeks. Perform and acid test, If it fails pump down the unit and replace the filter-drier.

STEP 7

Charge the unit a final time. Unit should now be clean and repeated future burn-outs can be avoided.

001223MAN-04 Page 46 01 JAN 2014

REFRIGERATION CIRCUIT DIAGRAMS

01 JAN 2014 Page 47 001223MAN-04

REFRIGERATION CIRCUIT DIAGRAMS (continued)

001223MAN-04 Page 48 01 JAN 2014

REFRIGERATION CIRCUIT DIAGRAMS (continued)

01 JAN 2014 Page 49 001223MAN-04

Model Specific Information

This section provides general information particular to each model. For complete specifications please see the specifications document for the desired model.

REFRIGERANT CHARGE CHART SHIPPING INFORMATION

Table 16 - Refrigerant - R410a

SIZE Lbs. kg

45

55

65

75

80

6.0 2.7

8.0 3.6

10.0 4.5

12.0 5.4

12.0 5.4

System contains POE oil.

MODEL

SIZE

45

55

65

75

80

Table 17 - Shipping Information

WEIGHT

Lbs. (kg)

520 (236)

575 (261)

635 (288)

680 (308)

695 (315)

DIMENSIONS in (cm)

L W H

44 (112) 36 (91) 68 (173)

44 (112) 36 (91) 68 (173)

44 (112) 36 (91) 68 (173)

44 (112) 36 (91) 68 (173)

44 (112) 36 (91) 68 (173)

STANDARD CAPACITY RATINGS

The tables below depict the results of standard capacity rating tests according to C13256-1, which is identical to ISO13256-1.

Stage 1 values do not apply to single stage units. Refer to the Electrical Tables to determine which models are single stage.

Table 18 - Standard Capacity Ratings - Ground Loop Heating* 60Hz

EAT 68°F (20°C)

STAGE 2 - ELT 32°F (0°C)

Model

Size Liquid Flow

Pressure

Drop

Mode Airflow

Input

Energy

Capacity COP

H

Tons IGAL USG L/s PSI kPA CFM L/s Watts BTU/Hr kW W/W

45

55

65

75

80

3

4

5

6

6

8

10 12.0 0.76 5.1 35.3

12 14.4 0.91 6.3 43.7

14

14

9.6 0.61 5.5 37.9

16.8

16.8

1.06

1.06

* 15% NaCl by Weight Ground Loop Fluid

5.9

5.9

40.8

40.8

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

1030

1200

486

566

1240

1500

1540

1900

585

708

727

897

1660

2100

783

991

2400 1133

1,550

2,290

2,250

3,000

2,615

3,510

3,600

4,465

5,155

23,600

31,700

6.9

9.4

33,500 9.8

39,500 11.6

39,000 11.4

47,800 14.0

48,400 14.2

57,200 16.8

61,900 18.1

4.47

4.06

4.37

3.86

4.37

3.99

3.94

3.75

3.52

REV-11

Table 19 - Standard Capacity Ratings - Ground Water Heating 60Hz

EAT 68°F (20°C) ELT 50°F (10°C)

Model

45

55

65

75

80


Pressure

Drop

Tons IGAL USG L/s PSI kPA

3

4

5

6

6

8

10 12.0 0.76 4.6 32.1

12 14.4 0.91 5.6 38.9

14

14

9.6 0.61 4.9 34.1

16.8

16.8

1.06

1.06

5.0

5.0

34.6

34.6

Mode

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Airflow

CFM

1030

1200

L/s

486

566

1240

1500

1540

1900

585

708

727

897

1660

2100

783

991

2400 1133

Input

Energy

Watts

1,500

2,480

2,315

3,305

2,645

3,790

3,610

4,880

5,600

Capacity

BTU/Hr kW

26,900 7.9

40,200 11.8

37,800 11.1

51,500 15.1

44,100 12.9

60,400 17.7

54,200 15.9

71,400 20.9

77,100 22.6

COP

H

W/W

5.26

4.75

4.78

4.57

4.89

4.67

4.40

4.29

4.04

REV-11

001223MAN-04 Page 50 01 JAN 2014

STANDARD CAPACITY RATINGS (continued)

Table 20 - Standard Capacity Ratings -

Ground Loop Cooling*

60Hz

EAT 80.6°F (27°C)

STAGE 2 - ELT 77°F (25°C)

Model


Pressure

Drop

Mode Airflow

Input

Energy

Capacity COP c

Tons IGAL USG L/s PSI kPA CFM L/s Watts BTU/Hr kW W/W

45

55

65

75

80

3

4

5

6

6

8

14

14

9.6 0.61 5.1 35.1

10 12.0 0.76 4.9 33.6

12 14.4 0.91 5.7 39.2

16.8

16.8

1.06

1.06

5.6

5.6

38.8

38.8

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

1030

1200

1240

1500

1540

1900

486

566

585

708

727

897

1660

2100

783

991

2400 1133

1,060

1,965

1,750

3,015

2,025

3,500

2,790

4,460

5,235

32,600

44,100

41,600

51,700

49,400

60,500

58,200

69,700

77,200

9.6

12.9

12.2

15.1

14.4

17.7

17.0

20.4

22.6

9.04

6.57

6.97

5.02

7.14

5.06

6.11

4.58

4.32


REV-11

Table 21 - Standard Capacity Ratings -

Ground Water Cooling

60Hz

EAT 80.6°F (27°C) ELT 59°F (15°C)

Model

45

55

65

75

80


Pressure

Drop

Tons IGAL USG L/s PSI kPA

3

4

5

6

6

8 9.6 0.61 5.0 34.8

10 12.0 0.76 4.7 32.2

12 14.4 0.91 5.5 38.0

14

14

16.8

16.8

1.06

1.06

4.9

4.9

33.6

33.6

Mode

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Airflow

CFM

1030

1200

1240

1500

1540

1900

1660

2100

2400 1133

L/s

486

566

585

708

727

897

783

991

Input

Energy

Watts

895

1,640

1,525

2,515

1,760

2,950

2,485

3,875

4,350

Capacity

BTU/Hr kW

33,900

45,600

43,300

56,000

51,300

66,700

61,100

76,600

9.9

13.4

12.7

16.4

15.0

19.5

17.9

22.2

84,100 24.6

COP c

W/W

11.11

8.16

8.31

6.52

8.53

6.63

7.21

5.79

5.66

Table 22 - Standard Capacity Ratings - Ground Loop Hydronic Heating*

EWT 104°F (40°C)

STAGE 2 - ELT 32°F (0°C)

Model

Size

Liquid Flow

(Outdoor & Indoor)

Outdoor

Pressure Drop

Mode

Input

Energy

Capacity COP

H

Tons IGAL USG L/s PSI kPA Watts BTU/Hr kW W/W

45

55

65

75

80

3

4

5

6

6

8

10

12

14

14

9.6

12.0 0.76

14.4 0.91

16.8

16.8


0.61

1.06

1.06

5.5

5.1

6.3

5.9

5.9

37.9

35.3

43.7

40.8

40.8

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

1,940

2,665

2,920

3,950

3,340

4,340

4,395

5,425

6,490

21,600

28,100

31,100

38,300

38,200

46,200

44,800

51,400

56,600

6.3

8.2

9.1

11.2

11.2

13.5

13.1

15.0

16.6

3.26

3.09

3.13

2.85

3.35

3.12

2.99

2.77

2.83

REV-11

Table 23 - Standard Capacity Ratings - Ground Water Hydronic Heating 60Hz

EWT 104°F (40°C) ELT 50°F (10°C)

Model

45

55

65

75

80

Size

Tons

3

4

5

6

6

Liquid Flow

(Outdoor & Indoor)

IGAL USG L/s

8

10

12

14

14

9.6 0.61

12.0 0.76

14.4 0.91

16.8

16.8

1.06

1.06

Outdoor

Pressure Drop

PSI kPA

4.9

4.6

5.6

5.0

5.0

34.1

32.1

38.9

34.6

34.6

Mode

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Stage 2

Stage 1

Input

Energy

Watts

1,840

2,595

2,860

3,910

3,305

4,365

4,335

5,565

6,245

Capacity

BTU/Hr

25,700

36,600

35,700

48,800

43,900

59,100

51,700

67,700

73,300 kW

7.5

10.7

10.5

14.3

12.9

17.3

15.2

19.8

21.5

COP

H

W/W

4.09

4.13

3.66

3.65

3.89

3.97

3.50

3.57

3.44

01 JAN 2014 Page 51 001223MAN-04

CAPACITY RATINGS

Heating Mode

TF-45-HACW-P-1T

Source Data (Outdoor Loop)

ELT

Evap.

Temp

Flow LLT Delta T HAB

°F

°C

°F USGPM °F

°C L/s °C

°F

°C

Nominal 3 ton

Power Consumption

Compressor Fan* Effective COPh EAT

BTU/Hr Watts Amps Watts Watts

W/W

Watts

°F

°C

R410a 60 Hz

Sink Data (Indoor Loop)

Cond.

Temp.

°F

°C

Air

Flow

CFM

L/s

LAT Delta T

°F

°C

Net

Output

°F

BTU/Hr

°C

Watts

25.0 20 9.6 20.2 4.8 21,781 217 2,236

3.82

68 100 1,200 92.3 24.3 29,128

-3.9 -6.7 0.606 -6.5 2.7 6,382 20.0 37.8 566 33.5 13.5

8,534

31.0 25 9.6 25.8 5.2 23,701 217 2,293

3.99

68 102 1,200 94.0 26.0 31,242

-0.6 -3.9 0.606 -3.4 2.9 6,944 20.0 38.9 566 34.5 14.5

9,154

37.0 30 9.6 31.4 5.6 25,756 217 2,350

4.18

68 104 1,200 95.9 27.9 33,493

2.8 -1.1 0.606 -0.4 3.1 7,546 20.0 40.0 566 35.5 15.5

9,813

43.0 35 9.6 36.9 6.1 27,903 217 2,399

4.37

68 105 1,200 97.8 29.8 35,806

6.1 1.7 0.606 2.7 3.4 8,175 20.0 40.6 566 36.6 16.6 10,491

45.0 40 9.6 38.7 6.3 29,994 217 2,421

4.62

68 107 1,200 99.5 31.5 38,152

7.2 4.4 0.606 3.7 3.5 8,788 20.0 41.7 566 37.5 17.5 11,179

51.0 45 9.6 44.2 6.8 32,454 217 2,483

4.82

68 109 101.7 33.7 40,822

10.6 7.2 0.606 6.8 3.8 9,509 20.0 42.8 566 38.7 18.7 11,961

57.0 50 9.6 49.7 7.3 35,062 217 2,546

5.02

68 111 104.0 36.0 43,647

13.9 10.0 0.606 9.8 4.1 10,273 20.0 43.9 566 40.0 20.0 12,788

63.0 55 9.6 55.1 7.9 37,821 217 2,612

5.23

68 113 106.5 38.5 46,631

17.2 12.8 0.606 12.8 4.4 11,082 20.0 45.0 566 41.4 21.4 13,663

Compressor: ZPS30K4E-PFV * @ 37.3Pa (0.15inH2o) Ext. Static

Cooling Mode

TF-45-HACW-P-1T

EAT

Source Data (Indoor Loop)

Evap.

Temp

Airflow LAT Delta T Latent Sensible

HAB

R410a 60 Hz


Sink Data (Outdoor Loop)

Compressor Fan* Effective

Efficiency

ELT

Cond.

Temp.

Flow LLT Delta T Rejection

°F

°C

°F

°C

CFM

L/s

°F

°C

°F

°C

BTU/Hr

Watts

BTU/Hr

Watts

BTU/Hr Watts Amps Watts Watts

EER

Watts

COPc

°F

°C

°F USGPM °F

°C L/min °C

°F BTU/Hr

°C Watts

80.6 44.3 1,200 57.3 23.3 15,569

45,431 1,433 5.5

207 1,586

28.6

57 65 9.6 67.6 10.6 51,026

27.0

27.0

6.8

7.2

566 14.0 13.0

566 14.2 12.8

4,562

4,519

8,749 13,311

8,667 13,185

8.39 13.9 18.3 0.606 19.8 5.9 14,951

80.6 45 1,200 57.5 23.1 15,422 45,001 1,563 6.0 207 1,717

26.2

62 70 9.6 72.6 10.6 51,042

7.68 16.7 21.1 0.606 22.6 5.9 14,955

80.6 45.7 1,200 57.7 22.9 15,262 44,535 1,694 6.4 207 1,847

24.1

67 75 9.6 77.6 10.6 51,023

27.0 7.6 566 14.3 12.7 4,472 8,577 13,049 7.06 19.4 23.9 0.606 25.4 5.9 14,950

80.6 46.3 1,200 57.9 22.7 15,148 44,201 1,753 6.9 207 1,906

23.2

72 80 9.6 82.6 10.6 50,889

27.0 7.9 566 14.4 12.6 4,438 8,513

12,951 6.79 22.2 26.7 0.606 28.1

5.9 14,910

80.6 47 1,200 57.4 23.2 14,236

43,898 1,803 7.4

207 1,992

22.0

78 85 9.6 89.1 11.1 50,760

27.0 8.3 566 14.1 12.9 4,171 8,691

12,862 6.46 25.6 29.4 0.606 31.7

6.2 14,872

80.6 48 1,200 57.7 22.9 14,046

43,310 1,932 7.9

207 2,121

20.4

83 90 9.6 94.1 11.1 50,609

27.0 8.7 566 14.3 12.7 4,115 8,575 12,690 5.98 28.3 32.2 0.606 34.5 6.2 14,828

80.6 48 1,200 58.0 22.6 13,841 42,681 2,065 8.5 207 2,254

18.9

88 95 9.6 99.1 11.1 50,434

27.0 9.1 566 14.5 12.5 4,056 8,450 12,505 5.55 31.1 35.0 0.606 37.3 6.1 14,777

80.6 49 1,200 58.4 22.2 13,623 42,009 2,204 9.0 207 2,393

17.6

93 100 9.6 104.0 11.0 50,237

27.0 9.5 566 14.7 12.3

Compressor: ZPS30K4E-PFV

3,992 8,317 12,308 5.14 33.9 37.8 0.606 40.0 6.1 14,719

* @ 37.3Pa (0.15inH2o) Ext. Static

001223MAN-04 Page 52 01 JAN 2014

CAPACITY RATINGS (continued)

Heating Mode

TF-55-HACW-P-1T


ELT

Evap.

Temp


°F

°C

°F USGPM °F

°C L/s °C

°F

°C

Nominal 4 ton




W/W

Watts

°F

°C

R410a 60 Hz


Cond.

Temp.

°F

°C

Air

Flow

LAT Delta T

CFM °F

L/s °C

Net

Output

°F

BTU/Hr

°C

Watts

26.0 15 12.0 21.3 4.7 27,057 184 2,839

3.77

68 91 1,500 92.3 24.3 36,516

-3.3 -9.4 0.757 -6.0 2.6 7,928

32.0 20 12.0 26.8 5.2 29,480 184 3,008

3.85

20.0 32.8 708 33.5 13.5 10,699

68 96 1,500 94.3 26.3 39,518

0.0 -6.7 0.757 -2.9 2.9 8,638 20.0 35.6 708 34.6 14.6 11,579

38.0 25 12.0 32.4 5.6 31,996 184 3,184

3.92

68 101 1,500 96.4 28.4 42,634

3.3 -3.9 0.757 0.2 3.1 9,375 20.0 38.3 708 35.8 15.8 12,492

44.0 30 12.0 37.8 6.2 35,339 184 3,312

4.11

68 110 1,500 98.9 30.9 46,412

6.7 -1.1 0.757 3.2 3.4 10,354 20.0 43.3 708 37.2 17.2 13,599

49.0 35 12.0 42.4 6.6 39,564 184 3,314

4.48

68 116 101.8 33.8 50,663

9.4 1.7 0.757 5.8 3.7 11,592 20.0 46.7 708 38.8 18.8 14,844

55.0 40 12.0 47.9 7.1 42,408 184 3,504

4.53

68 121 104.1 36.1 54,154

12.8 4.4 0.757 8.8 3.9 12,425 20.0 49.4 708 40.1 20.1 15,867

61.0 45 12.0 53.4 7.6 45,485 184 3,685

4.60

68 106.6 38.6 57,849

16.1 7.2 0.757 11.9 4.2 13,327 20.0 51.9 708 41.4 21.4 16,950

67.0 50 12.0 58.9 8.1 48,432 184 3,898

4.62

68 109.0 41.0 61,523

19.4 10.0 0.757 15.0 4.5 14,190 20.0 54.7 708 42.8 22.8 18,026


Cooling Mode

TF-55-HACW-P-1T

EAT


Evap.

Temp


HAB

R410a 60 Hz




Efficiency

ELT

Cond.

Temp.


°F

°C

°F

°C

CFM

L/s

°F

°C

°F

°C

BTU/Hr

Watts

BTU/Hr

Watts


EER

Watts

COPc

°F

°C

°F USGPM °F

°C L/s °C

°F BTU/Hr

°C Watts

80.6 46 1,500 55.6 25.0 19,259

58,987 2,069 9.2

181 2,197

26.8

48 75 12.0 59.1 11.1 66,666

27.0

27.0

7.8

7.8

708 13.1 13.9

708 13.4 13.6

5,643

5,514

11,640 17,283

11,374 16,888

7.87

8.9 23.9 0.757 15.1 6.2 19,533

80.6 46 1,500 56.2 24.4 18,819 57,637 2,211 9.8 181 2,339

24.6

53 80 12.0 64.0 11.0 65,800

7.22 11.7 26.7 0.757 17.8 6.1 19,279

80.6 46 1,500 56.8 23.8 18,366 56,252 2,355 10.4 181 2,484

22.6

58 85 12.0 68.8 10.8 64,907

27.0 7.8 708 13.8 13.2 5,381 11,100 16,482 6.64 14.4 29.4 0.757 20.5 6.0 19,018

80.6 47 1,500 57.8 22.8 17,583 53,854 2,623 11.0 181 2,751

19.6

63 90 12.0 73.6 10.6 63,423

27.0 8.3 708 14.3 12.7 5,152 10,627

15,779 5.74 17.2 32.2 0.757 23.1

5.9 18,583

80.6 48 1,500 58.3 22.3 16,209

51,407 2,909 11.7 181 3,045

16.9

78 95 12.0 88.9 10.9 61,955

27.0 8.9 708 14.6 12.4 4,749 10,313

15,062 4.95 25.6 35.0 0.757 31.6

6.0 18,153

80.6 48 1,500 58.9 21.7 15,755

49,970 3,083 12.3 181 3,219

15.5

83 100 12.0 93.7 10.7 61,110

27.0 8.9 708 14.9 12.1 4,616 10,025 14,641 4.55 28.3 37.8 0.757 34.3 6.0 17,905

80.6 48 1,500 59.5 21.1 15,290 48,493 3,265 13.0 181 3,401

14.3

88 105 12.0 98.6 10.6 60,253

27.0 8.9 708 15.3 11.7 4,480 9,728 14,208 4.18 31.1 40.6 0.757 37.0 5.9 17,654

80.6 48 1,500 60.2 20.4 14,811 46,975 3,455 13.8 181 3,591

13.1

93 110 12.0 103.4 10.4 59,386

27.0 8.9 708 15.7 11.3


4,340 9,424 13,764 3.83 33.9 43.3 0.757 39.7 5.8 17,400


01 JAN 2014 Page 53 001223MAN-04


Heating Mode

TF-65-HACW-P-1T


ELT

Evap.

Temp


°F

°C

°F USGPM °F

°C L/s °C

°F

°C

Nominal 5 ton




W/W

Watts

°F

°C

R410a 60 Hz


Cond.

Temp.

°F

°C

Air

Flow

LAT Delta T

CFM °F

L/s °C

Net

Output

°F

BTU/Hr

°C

Watts

26.0 15 14.4 21.2 4.8 32,776 255 3,417

3.79

68 96 1,900 91.3 23.3 44,189

-3.3 -9.4 0.908 -6.0 2.7 9,603

32.0 20 14.4 26.7 5.3 36,044 255 3,510

3.99

20.0 35.6 897 32.9 12.9 12,947

68 98 1,900 93.1 25.1 47,774

0.0 -6.7 0.908 -2.9 2.9 10,561 20.0 36.7 897 34.0 14.0 13,998

38.0 25 14.4 32.2 5.8 39,557 255 3,603

4.20

68 100 1,900 95.2 27.2 51,605

3.3 -3.9 0.908 0.1 3.2 11,590 20.0 37.8 897 35.1 15.1 15,120

44.0 30 14.4 37.7 6.3 43,192 255 3,674

4.42

68 102 1,900 97.2 29.2 55,483

6.7 -1.1 0.908 3.2 3.5 12,655 20.0 38.9 897 36.2 16.2 16,256

49.0 35 14.4 42.5 6.5 46,773 255 3,793

4.59

68 105 1,900 99.3 31.3 59,474

9.4 1.7 0.908 5.8 3.6 13,704 20.0 40.6 897 37.4 17.4 17,426

55.0 40 14.4 47.9 7.1 51,013 255 3,889

4.82

68 107 101.7 33.7 64,043

12.8 4.4 0.908 8.8 3.9 14,947 20.0 41.7 897 38.7 18.7 18,765

61.0 45 14.4 53.3 7.7 55,525 255 3,988

5.06

68 109 104.3 36.3 68,892

16.1 7.2 0.908 11.8 4.3 16,269 20.0 42.8 897 40.1 20.1 20,185

67.0 50 14.4 58.6 8.4 60,315 255 4,090

5.30

68 111 107.0 39.0 74,031

19.4 10.0 0.908 14.8 4.7 17,672 20.0 43.9 897 41.6 21.6 21,691


Cooling Mode

TF-65-HACW-P-1T

EAT


Evap.

Temp


HAB

R410a 60 Hz




Efficiency

ELT

Cond.

Temp.

Flow LLT

Delta

T

Rejection

°F

°C

°F

°C

CFM

L/s

°F

°C

°F

°C

BTU/Hr

Watts

BTU/Hr

Watts


EER

Watts

COPc

°F

°C

°F USGPM °F

°C L/s °C

°F

°C

BTU/Hr

Watts

80.6 43.7 1,900 57.1 23.5 20,947

67,790 2,556 11.6 260 2,748

24.7

53 75 14.4 63.8 10.8 77,402

27.0

27.0

6.5

6.7

897 14.0 13.0

897 14.2 12.8

6,137

6,036

13,725 19,862

13,499 19,536

7.23 11.7 23.9 0.908 17.6 6.0 22,679

80.6 44 1,900 57.5 23.1 20,603 66,675 2,759 12.3 260 2,950

22.6

58 80 14.4 68.7 10.7 76,977

6.62 14.4 26.7 0.908 20.4 5.9 22,554

80.6 44.3 1,900 57.9 22.7 20,241 65,505 2,964 13.1 260 3,156

20.8

63 85 14.4 73.6 10.6 76,510

27.0 6.8 897 14.4 12.6 5,931 13,262 19,193 6.08 17.2 29.4 0.908 23.1 5.9 22,417

80.6 44.6 1,900 58.7 21.9 19,508 63,132 3,100 14.0 260 3,292

19.2

68 90 14.4 78.4 10.4 74,600

27.0

27.0

7.0

7.2

897 14.9 12.1

897 15.3 11.7

5,716

5,618

12,782

18,497

12,216

17,834

5.62 20.0 32.2 0.908 25.8 5.8 21,858

80.6 45 1,900 59.5 21.1 19,173

60,868 3,233 14.8 260 3,391

17.9

76 95 14.4 86.6 10.6 72,788

5.26 24.4 35.0 0.908 30.4 5.9 21,327

80.6 45 1,900 60.0 20.6 18,764

59,568 3,449 15.7 260 3,607

16.5

81 100 14.4 91.6 10.6 72,226

27.0 7.4 897 15.5 11.5 5,498 11,956 17,453 4.84 27.2 37.8 0.908 33.1 5.9 21,162

80.6 46 1,900 60.4 20.2 18,336 58,208 3,675 16.6 260 3,833

15.2

86 105 14.4 96.5 10.5 71,637

27.0 7.6 897 15.8 11.2 5,372 11,683 17,055 4.45 30.0 40.6 0.908 35.8 5.8 20,989

80.6 46 1,900 60.9 19.7 17,887 56,785 3,912 17.6 260 4,070

14.0

91 110 14.4 101.4 10.4 71,023

27.0 7.7 897 16.1 10.9


5,241 11,397 16,638 4.09 32.8 43.3 0.908 38.5 5.8 20,810


001223MAN-04 Page 54 01 JAN 2014


Heating Mode

TF-75-HACW-P-1T


ELT

°F

°C

Nominal 6 ton


Evap.

Temp

Flow LLT

°F USGPM °F

°C L/s °C

Delta T

°F

°C

HAB

BTU/Hr

Watts

Compressor Fan* Effective COPh

Watts Amps Watts Watts

W/W

EAT

°F

°C

R410a 60 Hz


Cond.

Temp.

°F

°C

Air

Flow

LAT Delta T

CFM °F

L/s °C

°F

°C

Net

Output

BTU/Hr

Watts

27.0 15 16.8 22.1 4.9 39,359 370 4,375

3.60

68 104 2,100 93.6 25.6 53,818

-2.8 -9.4 1.060 -5.5 2.7 11,532 20.0 40.0 991 34.2 14.2 15,768

33.0 20 16.8 27.6 5.4 43,335 370 4,475

3.81

68 106 2,100 95.7 27.7 58,135

0.6 -6.7 1.060 -2.5 3.0 12,697 20.0 41.1 991 35.4 15.4 17,033

39.0 25 16.8 33.0 6.0 47,606 370 4,575

4.02

68 108 2,100 97.9 29.9 62,747

3.9 -3.9 1.060 0.6 3.3 13,949 20.0 42.2 991 36.6 16.6 18,385

45.0 30 16.8 38.5 6.5 51,487 370 4,713

4.17

68 110 100.0 32.0 67,102

7.2 -1.1 1.060 3.6 3.6 15,086 20.0 43.3 991 37.8 17.8 19,661

50.0 35 16.8 43.4 6.6 55,170 370 4,873

4.29

68 113 102.0 34.0 71,398

10.0 1.7 1.060 6.3 3.7 16,165 20.0 45.0 991 38.9 18.9 20,919

56.0 40 16.8 48.9 7.1 59,792 370 5,031

4.46

68 116 104.5 36.5 76,559

13.3 4.4 1.060 9.4 4.0 17,519 20.0 46.7 991 40.3 20.3 22,432

62.0 45 16.8 54.3 7.7 64,657 370 5,194

4.62

68 119 107.0 39.0 81,982

16.7 7.2 1.060 12.4 4.3 18,944 20.0 48.3 991 41.7 21.7 24,021

68.0 50 16.8 59.7 8.3 69,767 370 5,365

4.79

68 122 109.7 41.7 87,674

20.0 10.0 1.060 15.4 4.6 20,442


20.0 50.0 991 43.2 23.2 25,688


TF-75-HACW-P-1T


ELT

Evap.

Temp

Airflow LLT Delta T Latent Sensible

HAB

Cooling Mode

R410a 60 Hz




Efficiency

EAT

Cond.

Temp.

Flow LAT Delta T Rejection

°F

°C

°F

°C

CFM

L/s

°F

°C

°F

°C

BTU/Hr

Watts

BTU/Hr

Watts


EER

Watts

COPc

°F

°C

°F USGPM °F

°C L/s °C

°F BTU/Hr

°C Watts

80.6 43.9 2,100 56.8 23.8 27,790 79,856 3,092 13.9 405 3,461

23.1

49 75 16.8 59.9 10.9 91,790

27.0

27.0

6.6

6.7

991 13.8 13.2

991 14.0 13.0

8,142

7,977

15,255 23,398

14,946 22,923

6.76

9.4 23.9 1.060 15.5 6.1 26,894

80.6 44 2,100 57.2 23.4 27,226 78,236 3,294 14.7 405 3,663

21.4

54 80 16.8 64.8 10.8 90,860

6.26 12.2 26.7 1.060 18.2 6.0 26,622

80.6 44.1 2,100 57.7 22.9 26,643 76,562 3,500 15.6 405 3,869

19.8

59 85 16.8 69.7 10.7 89,889

27.0 6.7 991 14.3 12.7 7,806 14,626 22,432 5.80 15.0 29.4 1.060 20.9 5.9 26,337

80.6 44.2 2,100 58.4 22.2 25,896 74,415 3,639 16.5 405 4,008

18.6

64 90 16.8 74.5 10.5 88,217

27.0 6.8 991 14.7 12.3 7,588 14,216 21,803 5.44 17.8 32.2 1.060 23.6 5.8 25,847

80.6 44 2,100 58.6 22.0 24,204 72,250 3,776 17.4 405 4,152

17.4

70 95 16.8 80.8 10.8 86,521

27.0 6.8 991 14.8 12.2 7,092 14,077

21,169 5.10 21.1 35.0 1.060 27.1

6.0 25,351

80.6 44 2,100 59.2 21.4 23,591

70,422 3,995 18.3 405 4,371

16.1

75 100 16.8 85.7 10.7 85,438

27.0 6.9 991 15.1 11.9 6,912 13,721

20,633 4.72 23.9 37.8 1.060 29.8

5.9 25,033

80.6 45 2,100 59.7 20.9 22,958

68,532 4,223 19.3 405 4,599

14.9

80 105 16.8 90.6 10.6 84,327

27.0 6.9 991 15.4 11.6 6,727 13,353 20,080 4.37 26.7 40.6 1.060 32.5 5.9 24,708

80.6 45 2,100 60.3 20.3 22,304

66,578 4,463 20.4 405 4,839

13.8

85 110 16.8 95.4 10.4 83,191

27.0 7.0 991 15.7 11.3 6,535 12,972 19,507 4.03 29.4 43.3 1.060 35.2 5.8 24,375


01 JAN 2014 Page 55 001223MAN-04


Heating Mode

TF-80-HACW-P-*S


ELT

Evap.

Temp


°F

°C

°F USGPM °F

°C L/s °C

°F

°C

Nominal 6 ton




W/W

Watts ***

°F

°C

R410a 60 Hz


Cond.

Temp.

°F

°C

Air

Flow

CFM

L/s

LAT Delta T

°F

°C

Net

Output

°F

BTU/Hr

°C

Watts

27.0 15 16.8 21.9 5.1 40,836 560 5,060

3.34

68 104 2,400 92.0 24.0 57,634

-2.8 -9.4 1.1 -5.6 2.8 11,965 14.8 20.0 40.0 1,133 33.3 13.3 16,887

33.0 20 16.8 27.2 5.8 45,990 560 5,145

3.59

68 106 2,400 94.3 26.3 63,078

0.6 -6.7 1.1 -2.6 3.2 13,475 15.0 20.0 41.1 1,133 34.6 14.6 18,482

39.0 25 16.8 32.6 6.4 51,427 560 5,230

3.85

68 108 2,400 96.7 28.7 68,805

3.9 -3.9 1.1 0.3 3.6 15,068 15.2 20.0 42.2 1,133 35.9 15.9 20,160

45.0 30 16.8 38.1 6.9 55,197 560 5,395

3.97

68 110 2,400 98.5 30.5 73,139

7.2 -1.1 1.1 3.4 3.8 16,173 15.4 20.0 43.3 1,133 36.9 16.9 21,430

50.0 35 16.8 43.0 7.0 58,405 560 5,598

4.04

68 113 100.1 32.1 77,109

10.0 1.7 1.1 6.1 3.9 17,113 15.7 20.0 45.0 1,133 37.8 17.8 22,593

56.0 40 16.8 48.4 7.6 63,866 560 5,754

4.23

68 116 102.6 34.6 83,100

13.3 4.4 1.1 9.1 4.2 18,712 16.1 20.0 46.7 1,133 39.2 19.2 24,348

62.0 45 16.8 53.7 8.3 69,610 560 5,911

4.43

68 119 105.2 37.2 89,383

16.7 7.2 1.1 12.1 4.6 20,395 16.4 20.0 48.3 1,133 40.7 20.7 26,189

68.0 50 16.8 59.0 9.0 75,652 560 6,072

4.63

68 122 108.0 40.0 95,973

20.0 10.0 1.1 15.0 5.0 22,166 16.8 20.0 50.0 1,133 42.2 22.2 28,120

Compressor: ZP70KWE *** 230-1-60 208-3-60 * @ 49.7Pa (0.02inH2o) Ext. Static

Cooling Mode

TF-80-HACW-P-*S

EAT


Evap.

Temp


HAB

R410a 60 Hz




Efficiency

ELT

Cond.

Temp.


°F

°C

°F

°C

CFM

L/s

°F

°C

°F

°C

BTU/Hr

Watts

BTU/Hr

Watts


EER

Watts

*** COPc

°F

°C

°F USGPM °F

°C L/min °C

°F BTU/Hr

°C Watts

80.6 44 2,400 57.8 22.8 30,398

87,349 3,293 17.6

625 3,882

22.5

49 75 16.8 61.0 12.0 100,720

27.0

27.0

6.6

6.7

1,133 14.3 12.7

1,133 14.6 12.4

8,906

8,745

16,687 25,593 11.9

16,384 25,129 12.3

6.59

9.4 23.9 1.060 16.1 6.7 29,511

80.6 44 2,400 58.2 22.4 29,846 85,765 3,522 18.5 625 4,112

20.9

54 80 16.8 65.9 11.9 99,920

6.11 12.2 26.7 1.060 18.8 6.6 29,276

80.6 44 2,400 58.6 22.0 29,251 84,055 3,761 19.5 625 4,350

19.3

59 85 16.8 70.8 11.8 99,026

27.0 6.7 1,133 14.8 12.2 8,571 16,057 24,628 12.6 5.66 15.0 29.4 1.060 21.6 6.6 29,014

80.6 44 2,400 59.1 21.5 28,612 82,219 3,992 20.6 625 4,581

17.9

64 90 16.8 75.7 11.7 97,977

27.0 6.8 1,133 15.1 11.9 8,383 15,707

24,090

13.1

5.26 17.8 32.2 1.060 24.3

6.5 28,707

80.6 44 2,400 59.2 21.4 26,892

80,273 4,235 21.7

625 4,831

16.6

70 95 16.8 82.1 12.1 96,861

27.0 6.8 1,133 15.1 11.9 7,879 15,641

23,520

13.5

4.87 21.1 35.0 1.060 27.9

6.7 28,380

80.6 44 2,400 59.8 20.8 26,191

78,181 4,518 22.9

625 5,114

15.3

75 100 16.8 87.0 12.0 95,733

27.0 6.9 1,133 15.4 11.6 7,674 15,233 22,907 14.0 4.48 23.9 37.8 1.060 30.6 6.7 28,050

80.6 45 2,400 60.4 20.2 25,446 75,959 4,822 24.1 625 5,418

14.0

80 105 16.8 91.8 11.8 94,550

27.0 6.9 1,133 15.8 11.2 7,456 14,800 22,256 14.6 4.11 26.7 40.6 1.060 33.2 6.6 27,703

80.6 45 2,400 61.0 19.6 24,658 73,607 5,151 25.5 625 5,747

12.8

85 110 16.8 96.7 11.7 93,322

27.0 7.0 1,133 16.1 10.9 7,225 14,342 21,567 15.2

Compressor: ZP70KWE *** 230-1-60 208-3-60

3.75 29.4 43.3 1.060 35.9 6.5 27,343


001223MAN-04 Page 56 01 JAN 2014

HYDRONIC CAPACITY RATINGS

TF-45-HACW-P-1T


Heating Mode

Nominal 3 ton


R410a 60 Hz


ELT

°F

°C

Evap.

Temp

°F USGPM °F

°C

Flow

L/s

LLT

°C

Delta T

°F

°C

HAB

BTU/Hr Watts Amps

Watts

Total Effective COPh EWT

Watts

W/W

°F

°C

Cond.

Temp.

°C

Flow LWT Delta T

Output

°F USGPM °F

L/s °C

°F

°C

Net

BTU/Hr

Watts

24.0 15 9.6 20.3 3.7 16,877 2,620 2.86 104.0 115 9.6 109.3 5.3

25,547

-4.4 -9.4 0.606 -6.5 2.1 4,945 40.0 46.1 0.606 43.0 3.0

7,485

30.0 20 9.6 25.9 4.1 18,504 2,661

3.01 104.0

116 9.6 109.7 5.7

27,313

-1.1 -6.7 0.606 -3.4 2.3 5,422 40.0 46.7 0.606 43.2 3.2

8,003

36.0 25 9.6 31.5 4.5 20,415 2,668

3.21 104.0

116 9.6 110.1 6.1

29,247

2.2 -3.9 0.606 -0.3 2.5 5,981 40.0 46.7 0.606 43.4 3.4

8,569

42.0 30 9.6 37.0 5.0 22,990 2,656 3.51 104.0 117 9.6 110.6 6.6

31,782

5.6 -1.1 0.606 2.8 2.8 6,736 40.0 47.2 0.606 43.7 3.7

9,312

45.0 35 9.6 39.3 5.7 25,833 2,596 3.90 104.0 118 9.6 111.2 7.2

34,580

7.2 1.7 0.606 4.1 3.1 7,569 40.0 47.8 0.606 44.0 4.0

10,132

51.0 40 9.6 44.8 6.2 28,381 2,599 4.19 104.0 118 9.6 111.7 7.7

37,139

10.6 4.4 0.606 7.1 3.5 8,316 40.0 47.8 0.606 44.3 4.3

10,882

57.0 45 9.6 50.2 6.8 30,910 2,634 4.43 104.0 119 9.6 112.3 8.3

39,789

13.9 7.2 0.606 10.1 3.8 9,057 40.0 48.3 0.606 44.6 4.6

11,658

63.0 50 9.6 55.6 7.4 33,856 2,638

4.75 104.0

119 9.6 112.9 8.9

42,746

17.2 10.0 0.606 13.1 4.1 9,920


40.0 48.3 0.606 45.0 5.0

12,524

TF-55-HACW-P-1T


Heating Mode

Nominal 4 ton


R410a 60 Hz


ELT

°F

°C

Evap.

Temp

Flow LLT

°F USGPM °F

°C L/s °C

Delta T

°F

°C

HAB

Watts

Total

BTU/Hr Watts Amps

Effective COPh EWT

Watts

W/W

°F

°C

Cond.

Temp.

°F

°C

Net

Flow LWT Delta T

Output

USGPM

L/s

°F

°C

°F

BTU/Hr

°C

Watts

24.0 15 12.0 20.3 3.7 21,143 3,884

2.58 104.0

129 12.0 109.7 5.7

34,152

-4.4 -9.4 0.757 -6.5 2.1 6,195 40.0 53.9 0.757 43.2 3.2

10,006

30.0 20 12.0 25.8 4.2 23,823 3,943 2.75 104.0 130 12.0 110.2 6.2

37,033

-1.1 -6.7 0.757 -3.4 2.3 6,980 40.0 54.4 0.757 43.4 3.4

10,850

36.0 25 12.0 31.3 4.7 27,005 3,955

2.98 104.0

130 12.0 110.7 6.7

40,259

2.2 -3.9 0.757 -0.4 2.6 7,912 40.0 54.4 0.757 43.7 3.7

11,796

42.0 30 12.0 36.7 5.3 30,068 3,938

3.22 104.0

130 12.0 111.2 7.2

43,263

5.6 -1.1 0.757 2.6 2.9 8,810 40.0 54.4 0.757 44.0 4.0

12,676

46.0 35 12.0 40.2 5.8 33,327 3,908

3.48 104.0

130 12.0 111.7 7.7

46,447

7.8 1.7 0.757 4.5 3.2 9,765 40.0 54.4 0.757 44.3 4.3

13,609

52.0 40 12.0 45.5 6.5 37,284 3,914 3.77 104.0 130 12.0 112.4 8.4

50,424

11.1 4.4 0.757 7.5 3.6 10,924 40.0 54.4 0.757 44.7 4.7

14,774

58.0 45 12.0 50.8 7.2 41,193 3,963 4.03 104.0 131 12.0 113.1 9.1

54,499

14.4 7.2 0.757 10.4 4.0 12,070 40.0 55.0 0.757 45.1 5.1

15,968

64.0 50 12.0 56.0 8.0 45,776 3,967 4.36 104.0 131 12.0 113.9 9.9

59,098

17.8 10.0 0.757 13.3 4.5 13,412


40.0 55.0 0.757 45.5 5.5

17,316

01 JAN 2014 Page 57 001223MAN-04

HYDRONIC CAPACITY RATINGS (continued)

TF-65-HACW-P-1T


Heating Mode

Nominal 5 ton


R410a 60 Hz


ELT

°F

°C

Evap.

Temp

°F USGPM °F

°C

Flow

L/s

LLT

°C

Delta T

°F

°C

HAB

BTU/Hr Watts Amps

Watts


Watts

W/W

°F

°C

Cond.

Temp.

°C

Flow LWT Delta T

Output

°F USGPM °F

L/s °C

°F

°C

Net

BTU/Hr

Watts

26.0 15 14.4 21.9 4.1 28,283 4,321 2.90 104.0 116 14.4 110.0 6.0

42,815

-3.3 -9.4 0.908 -5.6 2.3 8,287 40.0 46.7 0.908 43.3 3.3

12,545

32.0 20 14.4 27.4 4.6 31,592 4,338

3.12 104.0

116 14.4 110.4 6.4

46,179

0.0 -6.7 0.908 -2.6 2.6 9,256 40.0 46.7 0.908 43.6 3.6

13,530

38.0 25 14.4 32.9 5.1 35,196 4,349

3.36 104.0

116 14.4 110.9 6.9

49,823

3.3 -3.9 0.908 0.5 2.9 10,312 40.0 46.7 0.908 43.8 3.8

14,598

44.0 30 14.4 38.3 5.7 38,689 4,373 3.58 104.0 117 14.4 111.4 7.4

53,396

6.7 -1.1 0.908 3.5 3.1 11,336 40.0 47.2 0.908 44.1 4.1

15,645

48.0 35 14.4 41.8 6.2 42,747 4,365 3.85 104.0 117 14.4 112.0 8.0

57,344

8.9 1.7 0.908 5.4 3.5 12,525 40.0 47.2 0.908 44.4 4.4

16,802

54.0 40 14.4 47.1 6.9 46,946 4,423 4.09 105.0 118 14.4 113.6 8.6

61,739

12.2 4.4 0.908 8.4 3.8 13,755 40.6 47.8 0.908 45.3 4.8

18,090

60.0 45 14.4 52.4 7.6 51,814 4,429 4.41 104.0 118 14.4 113.3 9.3

66,627

15.6 7.2 0.908 11.3 4.2 15,181 40.0 47.8 0.908 45.1 5.1

19,521

66.0 50 14.4 57.7 8.3 56,667 4,487

4.68 105.0

119 14.4 115.0 10.0 71,680

18.9 10.0 0.908 14.3 4.6 16,603


40.6 48.3 0.908 46.1 5.5

21,002

TF-75-HACW-P-1T


ELT

Evap.

Temp


Heating Mode

Nominal 6 ton



R410a 60 Hz


Cond.

Temp.

Net

Flow LWT Delta T

Output

°F °F USGPM °F °F BTU/Hr Watts Amps Watts

W/W

°F °F USGPM °F °F

BTU/Hr

°C °C L/s °C °C Watts °C °C L/s °C °C

Watts

26.0 15 16.8 22.2 3.8 29,942 5,349

2.61 104.0

125 16.8 109.7 5.7

47,736

-3.3 -9.4 1.060 -5.4 2.1 8,773 40.0 51.7 1.060 43.2 3.2

13,987

32.0 20 16.8 27.8 4.2 33,301 5,425 2.77 104.0 126 16.8 110.1 6.1

51,356

0.0 -6.7 1.060 -2.3 2.3 9,757 40.0 52.2 1.060 43.4 3.4

15,047

38.0 25 16.8 33.3 4.7 37,271 5,441 2.98 104.0 126 16.8 110.6 6.6

55,381

3.3 -3.9 1.060 0.7 2.6 10,920 40.0 52.2 1.060 43.7 3.7

16,226

44.0 30 16.8 38.7 5.3 42,601 5,480 3.25 104.0 126 16.8 111.2 7.2

60,844

6.7 -1.1 1.060 3.7 3.0 12,482 40.0 52.2 1.060 44.0 4.0

17,827

49.0 35 16.8 43.0 6.0 48,119 5,560

3.51 104.0

127 16.8 111.9 7.9

66,684

9.4 1.7 1.060 6.1 3.3 14,099 40.0 52.8 1.060 44.4 4.4

19,538

55.0 40 16.8 48.3 6.7 53,401 5,568

3.79 104.0

127 16.8 112.6 8.6

71,991

12.8 4.4 1.060 9.1 3.7 15,646 40.0 52.8 1.060 44.8 4.8

21,093

61.0 45 16.8 53.6 7.4 59,105 5,574

4.08 104.0

127 16.8 113.3 9.3

77,717

16.1 7.2 1.060 12.0 4.1 17,318 40.0 52.8 1.060 45.1 5.1

22,771

67.0 50 16.8 58.9 8.1 64,748 5,641 4.34 104.0 128 16.8 114.0 10.0 83,587

19.4 10.0 1.060 14.9 4.5 18,971


40.0 53.3 1.060 45.5 5.5

24,491

001223MAN-04 Page 58 01 JAN 2014

HYDRONIC CAPACITY RATINGS (continued)

TF-80-HACW-P-*S


Heating Mode

Nominal 6 ton


R410a 60 Hz


ELT

°F

°C

Evap.

Temp

°F USGPM °F

°C

Flow

L/s

LLT

°C

Delta T

°F

°C

HAB

BTU/Hr Watts Amps

Watts

Total

***

Effective COPh EWT

Watts

W/W

°F

°C

Cond.

Temp.

°C

Flow LWT Delta T

Output

°F USGPM °F

L/s °C

°F

°C

Net

BTU/Hr

Watts

26.0 15 16.8 22.3 3.7 29,901 6,451 2.34 104.0 125 16.8 110.1 6.1

51,458

-3.3 -9.4 1.060 -5.4 2.1 8,761 18.1 40.0 51.7 1.060 43.4 3.4

15,077

32.0 20 16.8 27.6 4.4 34,956 6,489

2.56 104.0

126 16.8 110.7 6.7

56,643

0.0 -6.7 1.060 -2.4 2.4 10,242 18.1 40.0 52.2 1.060 43.7 3.7

16,596

38.0 25 16.8 32.9 5.1 40,761 6,437

2.83 104.0

126 16.8 111.4 7.4

62,270

3.3 -3.9 1.060 0.5 2.8 11,943 18.0 40.0 52.2 1.060 44.1 4.1

18,245

44.0 30 16.8 38.2 5.8 46,150 6,313 3.12 104.0 126 16.8 112.0 8.0

67,235

6.7 -1.1 1.060 3.5 3.2 13,522 17.9 40.0 52.2 1.060 44.5 4.5

19,700

49.0 35 16.8 42.6 6.4 51,148 6,256 3.38 104.0 127 16.8 112.6 8.6

72,087

9.4 1.7 1.060 5.9 3.6 14,986 17.9 40.0 52.8 1.060 44.8 4.8

21,121

55.0 40 16.8 47.8 7.2 57,798 6,194 3.71 104.0 127 16.8 113.4 9.4

78,523

12.8 4.4 1.060 8.8 4.0 16,935 17.8 40.0 52.8 1.060 45.2 5.2

23,007

61.0 45 16.8 52.9 8.1 64,897 6,127 4.08 104.0 127 16.8 114.2 10.2 85,394

16.1 7.2 1.060 11.6 4.5 19,015 17.7 40.0 52.8 1.060 45.7 5.7

25,020

67.0 50 16.8 58.0 9.0 71,851 6,139

4.41 104.0

128 16.8 115.0 11.0 92,391

19.4 10.0 1.060 14.4

Compressor: ZP70KWE-PFV

5.0 21,052 17.6

208-3-60

40.0 53.3 1.060 46.1 6.1

27,070

01 JAN 2014 Page 59 001223MAN-04

ELECTRICAL TABLES

Table 24 - Heat Pump Electrical Information (208/230-1-60)

Model

Compressor Fan

RLA LRA RLA

In/Outdoor

Circulators

Max A

FLA MCA

Amps Amps

Max Fuse/

Breaker

Amps

Wire

Size ga

45 18.6 32.6 40 #8-3

55 23.6 41.3 50 #6-3

65 28.6 49.1 60 #6-3

75 30.4 52.3 60 #6-3

80* 35.7 59.4 70 #6-3

* Models are single stage

Table 25 - Heat Pump Electrical Information (208-3-60)

Model

Compressor Fan

RLA LRA RLA

In/Outdoor

Circulators

Max A

FLA MCA

Amps Amps

Max Fuse/

Breaker

Amps

Wire

Size ga

45 12.4 5.0 21.7 24.8 40 #8-4

55 15.0 7.0 26.8 30.6

50 #6-4

65 19.6 7.0 32.9 37.8 60 #6-4

75 21.2 7.0 35.5 40.8 60 #6-4

80* 25.0 7.0 39.8 46.1

60 #6-4



Model

Compressor Fan

RLA LRA RLA

In/Outdoor

Circulators

Max A

FLA MCA

Amps Amps

Max Fuse/

Breaker

Amps

Wire

Size ga

45* 15.0 67 3.5 5.0 24.3 28.1 40 #12-2

55* 17.7 98 4.0 7.0 29.5 33.9 50 #10-2

65* 27.3 7.0 40.6 47.4

60 #10-2

75* 32.9 7.0 47.2 55.4

80 #8-2



Model

Compressor Fan

RLA LRA RLA

In/Outdoor

Circulators

Max A

FLA MCA

Amps Amps

Max Fuse/

Breaker

Amps

Wire

Size ga

45 5.0 5.0 14.3 15.6 20 #12-4

55 7.1 7.0 18.9 20.7 25 #10-4

65 10.0 7.0 23.3 25.8 30 #10-4

75 10.9 7.0 25.2 27.9 40 #8-4

80* 11.8 74 7.0 7.0 26.6 29.6

40 #8-4


Heater Size

Size

(kW)

TABLE 28 - Plenum Heater Electrical Information

Electrical 230-1-60 Electrical 208-1-60 Electrical 220-1-50

Current

(A)

Breaker

(A)

Wire

Size

Current

(A)

Breaker

(A)

Wire

Size

Current

(A)

Breaker

(A)

Wire

Size

001223MAN-04

15 63 80 #4 54 70 #4 57 80 #4

Page 60 01 JAN 2014

AQUASTAT CONNECTION DIAGRAM

01 JAN 2014 Page 61 001223MAN-04

ELECTRICAL DIAGRAMS (208/230-1-60)

001223MAN-04 Page 62 01 JAN 2014

ELECTRICAL DIAGRAMS (208/230-1-60) - continued

01 JAN 2014 Page 63 001223MAN-04

CASE DETAILS—TOP VIEWS

Top View (Size 45)

Top View (Size 55-80)

001223MAN-04 Page 64 01 JAN 2014

CASE DETAILS—LEFT RETURN

Front View—Left Return Right Side View—Left Return (Size 45)

01 JAN 2014

Left Side View– Left Return

Page 65

Right Side View—Left Return (Size 55-80)

001223MAN-04

CASE DETAILS—RIGHT RETURN

Front View—Right Return Left Side View—Right Return (Size 45)

Right Side View– Right Return

001223MAN-04 Page 66

Left Side View—Right Return (Size 55-80)

01 JAN 2014

APPENDIX A - Control Board Specifications

01 JAN 2014 Page 67 001223MAN-04

Model

45

55

65

75

80

APPENDIX B - ECM Fan Airflow Tables

CFM

1200

1500

1900

2100

2400

Full

NOMINAL AIRFLOW SETTING (MED)

STAGE 2

Reduced* Full

STAGE 1

Reduced*

L/s

566

708

897

991

1133

CFM

1020

1275

1615

1785

2040

L/s

481

602

762

842

963

CFM

1030

1240

1540

1660

N/A

L/s

486

585

727

783

N/A

CFM

876

1054

1309

1411

N/A

L/s

413

497

618

666

N/A

FAN ONLY (Recirculation)

Full Reduced*

CFM

672

840

1064

1176

1344

L/s

317

396

502

555

634

CFM

571

714

904

1000

1142

L/s

270

337

427

472

539

Model

45

55

65

75

80

CFM

1128

1410

1786

1974

2256

Full

-6% AIRFLOW SETTING (LOW)

STAGE 2

Reduced* Full

STAGE 1

Reduced*

L/s

532

665

843

932

1065

CFM

959

1199

1518

1678

1918

L/s

453

566

716

792

905

CFM

968

1166

1448

1560

N/A

L/s

457

550

683

736

N/A

CFM

823

991

1230

1326

N/A

L/s

388

468

581

626

N/A


Full Reduced*

CFM

632

790

1000

1105

1263

L/s

298

373

472

522

596

CFM

537

671

850

940

1074

L/s

253

317

401

443

507

Model

45

55

65

75

80

CFM

1272

1590

2014

2226

2544

Full

+6% AIRFLOW SETTING (HIGH)

STAGE 2

Reduced* Full

STAGE 1

Reduced*

L/s

600

750

951

1051

1201

CFM

1081

1352

1712

1892

2162

L/s

510

638

808

893

1021

CFM

1092

1314

1632

1760

N/A

L/s

515

620

770

830

N/A

CFM

928

1117

1388

1496

N/A

L/s

438

527

655

706

N/A


Full Reduced*

CFM

712

890

1128

1400

1425

L/s

336

420

532

661

672

CFM

605

757

959

1190

1211

L/s

286

357

452

562

572

Model

45

55

65

75

80

CFM

1344

1680

2128

2352

2688

Full

+12% AIRFLOW SETTING (MAX)

STAGE 2

Reduced* Full

STAGE 1

Reduced*

L/s

634

793

1004

1110

1269

CFM

1142

1428

1809

1999

2285

L/s

539

674

854

944

1078

CFM

1154

1389

1725

1859

N/A

L/s

544

655

814

877

N/A

CFM

981

1180

1466

1580

N/A

L/s

463

557

692

746

N/A


Full Reduced*

CFM

753

941

1192

1317

1505

L/s

355

444

562

622

710

CFM

640

800

1013

1120

1279

L/s

302

377

478

528

604

NOTES: Unit sizes 45 and 55 nominal value up to 0.50 inH2o, sizes 65, 75 and 80 up to 0.70inH2o

*To obtain the REDUCED airflow values use a dry contact to connect AR1 to AR2 on the terminal strip

001223MAN-04

INFORMATION TAKEN FROM DOCUMENT 000527INF-04

Page 68 01 JAN 2014

01 JAN 2014

THIS PAGE INTENTIONALLY LEFT BLANK

Page 69 001223MAN-04

001223MAN-04


Page 70 01 JAN 2014

01 JAN 2014


Page 71 001223MAN-04

LIMITED EXPRESS WARRANTY

It is expressly understood that unless a statement is specifically identified as a warranty, statements made by Maritime Geothermal Ltd., a corporation registered in New

Brunswick, Canada, (“MG”) or its representatives, relating to MG’s products, whether oral, written or contained in any sales literature, catalogue or agreement, are not express warranties and do not form a part of the basis of the bargain, but are merely MG’s opinion or commendation of MG’s products.

EXCEPT AS SPECIFICALLY SET FORTH HEREIN, THERE IS NO EXPRESS WARRANTY AS TO ANY OF MG’S PRODUCTS. MG MAKES NO WARRANTY AGAINST

LATENT DEFECTS. MG MAKES NO WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS OF THE GOODS FOR ANY PARTICULAR PURPOSE.

LIMITED EXPRESS RESIDENTIAL WARRANTY - PARTS

MG warrants its Residential Class products, purchased and retained in the United States of America and Canada, to be free from defects in material and workmanship under normal use and maintenance as follows:

(1) Air conditioning, heating and/or heat pump units built or sold by MG (“MG Units”) for five (5) years from the Warranty Inception Date (as defined below).

(2) Thermostats, auxiliary electric heaters and geothermal pumping modules built or sold by MG, when installed with MG Units, for five (5) years from the Warranty Inception

Date (as defined below).

(3) Sealed refrigerant circuit components of MG Units (which components only include the compressor, refrigerant to air/water heat exchangers, reversing valve body and

refrigerant metering device) for ten (10) years from the Warranty Inception Date (as defined below).

(4) Other accessories and parts built or sold by MG, when installed and purchased with MG Units, for five (5) years from the date of shipment from MG.

(5) Other accessories, when purchased separately, for (1) year from the date of shipment from MG.

The “Warranty Inception Date” shall be the date of original unit installation, as per the date on the installation Startup Record or six (6) months from date of unit shipment from MG, whichever comes first.

To make a claim under this warranty, parts must be returned to MG in Petitcodiac, New Brunswick, freight prepaid, no later than ninety (90) days after the date of the failure of the part. If MG determines the part to be defective and within MG’s Limited Express Residential Warranty, MG shall, when such part has been either replaced or repaired, return such to a factory recognized distributor, dealer or service organization, freight prepaid. The warranty on any part repaired or replaced under warranty expires at the end of the original warranty period.

LIMITED EXPRESS RESIDENTIAL WARRANTY - LABOUR

This Limited Express Residential Labour Warranty shall cover the labour incurred by MG authorized service personnel in connection with the installation of a new or repaired warranty part that is covered by this Limited Express Residential Warranty only to the extent specifically set forth in the current labour allowance schedule "A" provided by MG’s

Warranty Department and only as follows:

(1) MG Units for two (2) years from the Warranty Inception Date.

(2) Thermostats, auxiliary electric heaters and geothermal pump modules built or sold by MG, when installed with MG Units, for two (2) years from the Warranty Inception Date.

(3) Sealed refrigerant circuit components of MG Units (which components only include the compressor, refrigerant to air/water heat exchangers, reversing valve body and

refrigerant metering device) for five (5) years from the Warranty Inception Date.

Labour costs are not covered by this Limited Express Residential Warranty to the extent they exceed the amount allowed under said allowance schedule, they are not specifically provided for in said allowance schedule, they are not the result of work performed by MG authorized service personnel, they are incurred in connection with a part not covered by this Limited Express Residential Warranty, or they are incurred more than the time periods set forth in this paragraph after the Warranty Inception Date.

This warranty does not cover and does not apply to:

(1) Air filters, fuses, refrigerant, fluids, oil.

(2) Products relocated after initial installation.

(3) Any portion or component of any system that is not supplied by MG, regardless of the cause of the failure of such portion or component.

(4) Products on which the unit identification tags or labels have been removed or defaced.

(5) Products on which payment to MG, or to the owner’s seller or installing contractor, is in default.

(6) Products subjected to improper or inadequate installation, maintenance, repair, wiring or voltage conditions.

(7) Products subjected to accident, misuse, negligence, abuse, fire, flood, lightning, unauthorized alteration, misapplication, contaminated or corrosive liquid or air supply,

operation at abnormal air or liquid temperatures or flow rates, or opening of the refrigerant circuit by unqualified personnel.

(8) Mold, fungus or bacteria damage

(9) Corrosion or abrasion of the product.

(10) Products supplied by others.

(11) Products which have been operated in a manner contrary to MG’s printed instructions.

(12) Products which have insufficient performance as a result of improper system design or improper application, installation, or use of MG’s products.

(13) Electricity or fuel, or any increases or unrealized savings in same, for any reason whatsoever.

Except for the limited labour allowance coverage set forth above, MG is not responsible for:

(1) The costs of fluids, refrigerant or system components supplied by others, or associated labour to repair or replace the

same, which is incurred as a result of a defective part covered by MG’s Limited Residential Warranty.

(2) The costs of labour, refrigerant, materials or service incurred in diagnosis and removal of the defective part, or in obtaining

and replacing the new or repaired part.

(3) Transportation costs of the defective part from the installation site to MG, or of the return of that part if not covered by

MG’s Limited Express Residential Warranty.

(4) The costs of normal maintenance.

This Limited Express Residential Warranty applies to MG Residential Class products manufactured on or after February 15, 2010. MG’S LIABILITY UNDER THE TERMS OF

THIS LIMITED WARRANTY SHALL APPLY ONLY TO THE MG UNITS REGISTERED WITH MG THAT BEARS THE MODEL AND SERIAL NUMBERS STATED ON THE

INSTALLATION START UP RECORD, AND MG SHALL NOT, IN ANY EVENT, BE LIABLE UNDER THE TERMS OF THIS LIMITED WARRANTY UNLESS THIS

INSTALLATION START UP RECORD HAS BEEN ENDORSED BY OWNER & DEALER/INSTALLER AND RECIEVED BY MG LIMITED WITHIN 90 DAYS OF START UP.

Limitation: This Limited Express Residential Warranty is given in lieu of all other warranties. If, not withstanding the disclaimers contained herein, it is determined that other warranties exist, any such express warranty, including without imitation any express warranties or any implied warranties of fitness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Residential Warranty.

LIMITATION OF REMEDIES In the event of a breach of the Limited Express Residential Warranty, MG will only be obligated at MG’s option to repair the failed part or unit, or to furnish a new or rebuilt part or unit in exchange for the part or unit which has failed. If after written notice to MG’s factory in Petitcodiac, New Brunswick of each defect, malfunction or other failure, and a reasonable number of attempts by MG to correct the defect, malfunction or other failure, and the remedy fails of its essential purpose, MG shall refund the purchase price paid to MG in exchange for the return of the sold good(s). Said refund shall be the maximum liability of MG. THIS REMEDY IS THE SOLE AND

EXCLUSIVE REMEDY OF THE BUYER OR PURCHASER AGAINST MG FOR BREACH OF CONTRACT, FOR THE BREACH OF ANY WARRANTY OR FOR MG’S

NEGLIGENCE OR IN STRICT LIABILITY.

LIMITATION OF LIABILITY MG shall have no liability for any damages if MG’s performance is delayed for any reason or is prevented to any extent by any event such as, but not limited to: any war, civil unrest, government restrictions or restraints, strikes, or work stoppages, fire, flood, accident, shortages of transportation, fuel, material, or labour, acts of God or any other reason beyond the sole control of MG. MG EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL

DAMAGE IN CONTRACT, FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, OR IN TORT, WHETHER FOR MG’s NEGLIGENCE OR AS STRICT LIABILITY.

OBTAINING WARRANTY PERFORMANCE Normally, the dealer or service organization who installed the products will provide warranty performance for the owner. Should the installer be unavailable, contact any MG recognized distributor, dealer or service organization. If assistance is required in obtaining warranty performance, write or call: Maritime

Geothermal Ltd • Customer Service • PO Box 2555 • Petitcodiac, New Brunswick E4Z 6H4 • (506) 756

‐8135 • or e-mail to [email protected] NOTE: Some states or Canadian provinces do not allow limitations on how long an implied warranty lasts, or the limitation or exclusions of consequential or incidental damages, so the foregoing exclusions and limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state and from Canadian province to

Canadian province. Please refer to the MG Installation, Installation and Service Manual for operating and maintenance instructions.

An extended warranty option is also available. Please contact Maritime Geothermal Ltd. via the contact information in the previous paragraph for more information.

001223MAN-04 Page 72 01 JAN 2014

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