Maritime Geothermal TF Series User Manual

118 pages

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15-Jan-2019 Page 1 002362MAN-01

Maritime Geothermal Ltd.

P.O. Box 2555, 170 Plantation Road

Petitcodiac, NB E4Z 6H4

(506) 756-8135

TF-Series

Triple Function Geothermal Heat Pump (Gen2)

Two-stage R410a

Model Sizes 45-80

info@nordicghp.com

www.nordicghp.com

002362MAN-01

15-Jan-2019

Installation and Service Manual

Default Chapter4
- Table of Contents4
Tables & Documents5
TF System Description6
- General Overview6
- Air Heating Mode6
- Hydronic (Water) Heating Mode6
- Air Cooling Mode6
- Mode & Priority Selection7
- Auxiliary Air Heat7
- Auxiliary Hydronic Heat7
- Factory Options7
- Air Outlet Orientation7
TF-Series Sizing8
- Heat Pump Sizing8
- Plenum Heater Sizing8
- Table 1 - Heat Pump Size Vs. Heated Area for a Ground Loop System8
- Table 2 - Heat Pump Size Vs. Heated Area for an Open Loop System8
- Table 3 - Plenum Heater Sizing8
Installation Basics9
- Sample Bill of Materials - Ground Loop Installations9
- Sample Bill of Materials - Open Loop Installations9
- Unpacking the Unit10
- Unit Placement10
- Air Outlet Orientation10
- Air Return Orientation10
- 001915INF - Internal Plenum Heater Installation11
Wiring12
- Power Supply Connections12
- Auxiliary Plenum Heater: Power Supply Connections12
- Auxiliary Plenum Heater: Signal Connections12
- Indoor Loop Circulator Pump Wiring12
- Outdoor Loop Pump Module Wiring (Ground Loop Only)12
- Control Transformer12
- Table 4 - Power Supply Connections12
- Table 5 - Plenum Heater Signal Connections12
- Table 6 - Indoor & Outdoor Circulator Connections12
- Open/Closed Loop Wiring13
- Domestic Hot Water (Desuperheater)13
- Ducted Air Thermostat Connections13
- Hydronic Backup Wiring13
- Aquastat Connections (Optional)13
- Other Connections13
- Table 7 - Air Thermostat Connections13
- Table 8 - Hydronic Auxiliary Connections13
- Table 9 - Aquastat (Signals Control) Connections13
- 002071CDG - Typical GEN2 Thermostat Connections14
- 002374CDG - Typ. TF Auxiliary Heat & Circulator Wiring15
- 002067CDG - Typ. Heating Only Zone Wiring (Setpoint)16
- 002069CDG - Typ. Htg. Only Zone Wiring (Signals/Hardw)17
Piping18
- Indoor Loop18
- Outdoor Loop18
- Condensate Drain18
- Domestic Hot Water (Desuperheater) Connections18
- Table 10 - Buffer Tank Size18
- 002238PDG - Typical Loop Connections - TF Series19
- 002366PDG - Recommended Hydronic Buffer Tank Piping20
- 002367PDG - Auxiliary Boiler Piping21
- 000530PDG - Typical Zone Types22
- 001055PDG - Connection to On-Demand DHW Tank23
- 000970PDG - Desup. Connection to DHW Pre-Heat Tank24
Ground Loop Installations25
- Circulator Pump Module25
- Flushing & Purging25
- Adding Antifreeze Solution26
- Initial Pressurization26
- Pipe Insulation26
- Table 11 - Antifreeze Percentages26
- Table 12 - Volume of Fluid Per 100Ft. of Pipe26
- 000608INF - Typical Horiz. Ground Loop Configuration27
- 000609INF - Typical Vert. Ground Loop Configuration28
- 000906CDG - Circulator Pump Module Installation29
- 001823CDG - Dual Flow Pump Module Installation30
Open Loop Installations31
- Well Water Temperature31
- Well Water Flow31
- Well Water Quality31
- Water Discharge Methods31
- Table 13 - Required Flow31
- Water Valve32
- Water Flow Control32
- Submersible Pump Selection33
- Stage 1 Vs. 2 on Open Loop33
- Plumbing the Heat Pump33
- Pipe Insulation33
- 000907CDG - Typical Open Loop Installation34
- 001822CDG - Dual Flow Open Loop Installation35
- 000619INF - Ground Water Disposal Methods36
Ductwork37
- Duct Systems - General37
- Duct Systems - Grill Layout37
- Ducted Air Thermostat Location37
- Plenum Heater37
- Table 14 - Heat Pump Size Vs. Hot Air Grills37
- 002222PDG - Typical Duct & Condensate Connections38
- Duct Sizing Guide39
- Table 15 - Duct Sizing Guide39
Operation40
- Bacnet Control40
- Air Thermostat Operation40
- Hydronic Temperature Control40
- Hydronic Heating: Setpoint Control40
- Setpoint Control Method 1 - Indoor Loop (ICR)40
- Setpoint Control Method 2 - External (HTS/CTS)40
- Outdoor Reset41
- Hydronic Heating: Signals Control41
- Table 16 - Typical Temperature Settings41
PC Application (PC App)42
- PC Application Menus42
LCD Display & Menus54
Bacnet Interface56
- Table 17 - Bacnet Objects - Control Signals (Read/Write)56
- Table 18 - Bacnet Objects - Operation Mode Description (Read Only)56
- Table 19 - Bacnet Objects - Data (Read Only)57
- Table 20 - Bacnet Objects - Alarm Descriptions (Read Only)58
- Table 21 - Bacnet Objects - Fault Descriptions (Read Only)59
Startup Procedure60
- Startup Record62
General Maintenance63
Troubleshooting Guide64
Repair Procedures78
Model Specific Information79
- Shipping Information (ATF Indoor Unit)79
- Refrigerant Charge79
- Required Loop Flow Rates79
- Operating Temperature Limits79
- Table 22 - Shipping Information79
- Table 23 - Refrigerant Charge79
- Table 24 - Required Loop Flow Rates79
- Table 25 - Operating Temperature Limits79
- Pressure Drop Data80
- Table 26: Loop Pressure Drop Data80
- Standard Capacity Ratings82
- Table 27 - Standard Capacity Ratings - Ground Loop Heating 60Hz82
- Table 28 - Standard Capacity Ratings - Ground Water Heating 60Hz82
- Table 29 - Standard Capacity Ratings - Ground Loop Cooling 60Hz82
- Table 30 - Standard Capacity Ratings - Ground Water Cooling 60Hz82
- Table 31 - Standard Capacity Ratings - Ground Loop Hydronic Heating 60Hz83
- Table 32 - Standard Capacity Ratings - Ground Water Hydronic Heating 60Hz83
- Performance Tables84
- Electrical Specifications94
- Table 33 - TF-Series Electrical Data94
- Table 34 - Plenum Heater Electrical Data94
- Airflow Data95
- Table 35 - Airflow Range for Stage 2 (Full Load)95
- Table 36 - Airflow Range for Stage 1 (Part Load)95
- Table 37 - Airflow Range for Stage 3 (Auxiliary)95
- Table 38 - Airflow Range for Fan Recirculation95
- Table 39 - Airflow Range for Emergency95
- Wiring Diagram (208/230-1-60)96
- Electrical Box Layout (208/230-1-60)97
- Wiring Diagram (208-3-60)98
- Electrical Box Layout (208-3-60)99
- Wiring Diagram (460-3-60)100
- Electrical Box Layout (460-3-60)101
- TF-Series Refrigeration Circuit - Air Heating Mode102
- TF-Series Refrigeration Circuit - Air Cooling Mode103
- TF-Series Refrigeration Circuit - Hydronic Heating Mode104
- Dimensions105
Appendix A: Control Board Description109
- Table A1 - Control Board Connector Descriptions (Top)110
- Table A2 - Control Board Connector Descriptions (Left Side)110
- Table A3 - Control Board Connector Descriptions (Bottom)111
- Table A4 - Control Board Connector Descriptions (Right Side)112
Appendix B: USB Driver Installation113
Appendix C: PC App Installation114
Appendix D: Updating Firmware115
Warranty118

Questions and Answers:

D
David MorganAug 15, 2025
What to do if my Maritime Geothermal TF Heat Pump compressor will not start?
- M
  Megan SheltonAug 15, 2025
  If your compressor won't start, there could be several reasons: * A faulty control board: Replace the control board. * A faulty run capacitor (single phase only): Replace it if faulty. * Loose or faulty wiring: Fix any loose connections and replace any damaged wires. * A faulty compressor contactor: Replace the contactor. * Thermal overload on the compressor tripped: Refer to Operation Troubleshooting to determine the cause. * Burned out motor (open or shorted windings): Replace the compressor. * Motor shorted to ground: If any terminal to ground is not infinite, replace the compressor. * Seized compressor: Attempt to “rock” compressor free. If normal operation cannot be established, replace the compressor.
K
Kristen VelazquezAug 18, 2025
What to do if my Maritime Geothermal TF has no power?
- S
  stevenjensenAug 18, 2025
  If there is no power to the heat pump, it could be due to the following reasons: * Disconnect switch open (if installed): Determine why the disconnect switch was opened; if all is OK, close the switch. * Fuse blown / breaker tripped: Reset breaker or replace fuse with proper size and type (Time-delay type “D”).