Maritime Geothermal Ltd. P.O. Box 2555, 170 Plantation Road Petitcodiac, NB E4Z 6H4 (506) 756-8135

WH-400-H-B-*D-PP High Temperature Water to Water Heat Pump

60 Hz

info@nordicghp.com www.nordicghp.com

002221SPC-01

5-Jan-2018

Engineering Specification

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Maritime Geothermal Ltd. has a continuous improvement policy and reserves the right to modify specification data at any time without prior notice .

APPLICATION TABLE MODEL FUNCTION REFRIGERANT VOLTAGE COMPRESSOR

STAGES OUTDOOR HEAT

EXCHANGER INDOOR HEAT EXCHANGER

REVISIONS

WH-400 H B 2 D

P P 01

4 D 01

5 D 01

This manual applies only to the models and revisions listed in this table.

Model Nomenclature

WH—400—H—B—2D—PP—xx

Series: WH = high temperature liquid to water (hydronic)

Nominal Size: 400 = 32 ton

Functions: H = Heating AC = Active Cooling

Refrigerant: B = R134a

Voltage Code: 2 = 208-3-60 4 = 460-3-60 5 = 575-3-60

Compressor: D = dual scroll

Outdoor Loop Exchanger: P = brazed plate

Indoor Loop Exchanger: P = brazed plate

Revision: 01, 02 etc.

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TUV listed for electrical certification

11 gauge heavy duty standalone frame with slots for 4-side forklift access

Designed to be lined up side by side with zero side clearance, for multiple-unit installations

Rubber mounting feet (optional spring foot kit, below)

Insulated heat exchangers and piping

Dual refrigeration circuits: each circuit operates independently

Copeland scroll compressors with crankcase heaters

Suction and discharge vibration absorbers (each circuit)

Suction line accumulator (each circuit)

Liquid line solid core filter-dryer (each circuit)

Liquid line sight glass (each circuit)

Electronic Expansion Valve (EEV) with built in sight glass (each circuit)

Refrigeration service ports for each refrigeration circuit (1/4” Schrader)

316 stainless steel brazed plate heat exchangers

316 stainless piping with 2” Victaulic connections for the outdoor and indoor loops

3-phase protection against phase loss

High and low pressure sensors (each circuit)

Suction line temperature sensor (each circuit)

Manual reset high pressure control (each circuit)

Flow switch for outdoor loop, and also for indoor loop on reversing units

Temperature sensor and P/T port on all four water lines (Outdoor In, Outdoor Out, Indoor In and Indoor Out)

Advanced control board with BACNet interface for remote operation and data access including all sensor data and alarm conditions, PWM outputs (or 0-10VDC), configurable analog inputs (0-10VDC or 4-20mA) with on board 5VDC, 12VDC and 24VDC power supplies.

USB port for complete data access using laptop computer and provided software; including real-time charting, data logging, and diagnostic functionality with manual override operation

2 x 16 LCD display for control and data access

Random start on power up (between 0-2 minutes)

Dry contacts for external pump control (24VAC 5A MAX)

Can be set up to use internal water temperature sampling routine for standalone operation, or to use optional tank temperature sensors, or external control via 24VAC signal or BACnet

16ga satin galvanized acoustically insulated (1” thick) enclosure with powder coat finish and six removable panels, offering complete 360 degree access for servicing

Spring foot kit, for use where floors have deflection (e.g. mezzanines)

2” solenoid water valve

2” modulating water valve

Design Features

Available Accessories

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Design Features

316SS true dual circuit brazed plate heat exchangers

Suitable for open or closed loop applications.

refrigerant access ports

Electronic Expansion Valves (EEV’s) with sight glasses

suction accumulators

suction & discharge vibration absorbers

sight glasses

2” 316SS water line ports with Victaulic connections

frame design allows unit to be picked up with forklift from either side or either end

Dual refrigeration circuit design allows independent operation of each circuit.

Copeland R134a scroll compressors with crankcase heaters

heavy duty welded 11 gauge frame for rigidity

rubber mounting feet standard (optional spring mounting feet for floors with flex available)

height clearance accommodates pallet jack

temperature sensor and P/T port on each water line

solid core filter-dryers

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Design Features

OPTIONAL ENCLOSURE KIT (A-510)

completely insulated with 1” acoustic insulation

seven removeable access panels; side panels can be removed from end when multiple units are installed side by side (no side access required)

2” Victaulic connections for loops

heavy duty enclosure constructed of 16ga satin galvanized steel, with powder coat finish

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Dimensions (Without Enclosure)

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Dimensions (With Enclosure)

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Specifications

Operating Temperature Limits

Loop Parameter (°F) (°C) Notes

Outdoor (Water)

Minimum ELT 45 7 Maximum ELT 90 32

Indoor (Water)

Minimum EWT 70 - 110 21 - 43 Use formula (Outdoor ELT + 20°F) or (Outdoor ELT + 11°C). Indoor loop may require flow control.

Maximum LWT 160 71

ELT/LLT: Entering/Leaving Liquid Temperature, EWT/LWT: Entering/Leaving Water Temperature. Values in these tables are for rated liquid and water flow values.

Loop Pressure Drop Data (psi)

FLOW (gpm) OUTDOOR LOOP: WATER @ 50°F

INDOOR LOOP: WATER @ 104°F

60 1.1 1.0

72 1.5 1.4

90 2.3 2.2

100 2.8 2.7

110 3.3 3.2

120 3.9 3.8

Electrical Information

Power Supply Compressors (each) FLA MCA Maximum

Fuse/Breaker Minimum Wire Size

V-ø-Hz MIN MAX RLA LRA Amps Amps Amps ga

2 208-3-60 187 229 58.6 340 117.4 132.1 200 #00-3

4 460-3-60 414 506 28.6 173 57.4 64.6 80 #4-3

5 575-3-60 518 632 23.6 132 47.4 53.3 80 #4-3

Nomenclature Identifier

Shipping Information

WEIGHT DIMENSIONS in (cm)

lb. (kg) L W H

WH-400 1440 (655) 78 (198) 32 (81) 82 (208)

MODEL

Refrigerant Charge (Per Circuit)

MODEL lb kg Oil Type

WH-400 13.0 5.9 POE

- Oil capacity is marked on the compressor label. - Refrigerant charge is subject to revision; actual charge is indicated on the unit nameplate.

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Performance Tables

120°F (49°C) Output WH-400-H R134a 60 Hz

Source Data (Outdoor Loop) Water Power / Efficiency Sink Data (Indoor Loop)

Water

ELT Evap. Temp Flow LLT Delta T HAB Effective COPh EWT Cond.

Temp. Flow LWT Delta T Output

°F °F USGPM °F °F BTU/Hr Watts Amps* W/W °F °F USGPM °F °F BTU/Hr

°C °C L/s °C °C Watts °C °C L/s °C °C Watts

50.0 39 100.0 46.0 4.0 198,701 20,719 37.4 3.77 114.7 125 100.0 120.0 5.3 266,306

10.0 3.9 6.309 7.8 2.2 58,219 45.9 51.4 6.309 48.9 3.0 78,027

60.0 48.3 100.0 55.3 4.7 236,899 21,054 37.8 4.25 113.9 125 100.0 120.0 6.1 305,648

15.6 9.1 6.309 12.9 2.6 69,411 45.5 51.5 6.309 48.9 3.4 89,554

70.0 57.5 100.0 64.3 5.7 285,621 21,758 38.8 4.80 112.9 125 100.0 120.0 7.1 356,773

21.1 14.2 6.309 17.9 3.2 83,686 44.9 51.7 6.309 48.9 4.0 104,533

80.0 66.3 100.0 73.1 6.9 345,767 22,662 40.1 5.43 111.5 125 100.0 119.9 8.4 420,005

26.7 19.1 6.309 22.8 3.8 101,309 44.1 51.8 6.309 48.8 4.7 123,060

90.0 75 100.0 81.7 8.3 416,573 23,613 41.7 6.14 110.1 126 100.0 120.0 9.9 494,811

32.2 23.9 6.309 27.6 4.6 122,055 43.4 51.9 6.309 48.9 5.5 144,978

140°F (60°C) Output 50.0 39 100.0 46.5 3.5 176,540 25,087 43.2 3.03 134.8 144 100.0 140.0 5.2 259,053

10.0 3.9 6.309 8.0 2.0 51,726 57.1 62.2 6.309 60.0 2.9 75,902

60.0 49 100.0 55.8 4.2 210,794 25,187 43.3 3.42 134.2 144 100.0 140.0 5.9 293,649

15.6 9.4 6.309 13.2 2.3 61,762 56.8 62.4 6.309 60.0 3.3 86,038

70.0 59 100.0 64.9 5.1 253,148 25,634 43.9 3.86 133.2 145 100.0 140.0 6.8 337,528

21.1 15.0 6.309 18.3 2.8 74,172 56.2 62.5 6.309 60.0 3.8 98,895

80.0 67.5 100.0 73.9 6.1 303,813 26,318 44.8 4.35 132.2 145 100.0 140.0 7.8 390,526

26.7 19.7 6.309 23.3 3.4 89,016 55.6 62.6 6.309 60.0 4.3 114,423

90.0 76 100.0 82.7 7.3 362,527 27,179 46.4 4.88 130.9 145 100.0 140.0 9.1 452,935

32.2 24.4 6.309 28.2 4.0 106,219 54.9 62.8 6.309 60.0 5.0 132,709

160°F (71°C) Output 50.0 41 100.0 47.1 2.9 147,110 30,625 51.1 2.38 155.0 164 100.0 160.0 5.0 248,525

10.0 5.0 6.309 8.4 1.6 43,103 68.3 73.3 6.309 71.1 2.8 72,817

60.0 50 100.0 56.5 3.5 175,221 30,654 51.1 2.65 154.5 164 100.0 160.0 5.5 276,733

15.6 10.0 6.309 13.6 1.9 51,339 68.0 73.5 6.309 71.1 3.1 81,082

70.0 59 100.0 65.8 4.2 211,048 30,811 51.3 2.98 153.7 165 100.0 160.0 6.3 313,096

21.1 15.0 6.309 18.8 2.3 61,836 67.6 73.6 6.309 71.1 3.5 91,736

80.0 68 100.0 74.9 5.1 254,508 31,101 51.7 3.37 152.9 165 100.0 160.0 7.2 357,549

26.7 20.0 6.309 23.8 2.8 74,570 67.1 73.8 6.309 71.1 4.0 104,761

90.0 77 100.0 83.9 6.1 305,130 31,512 52.5 3.82 151.8 165 100.0 160.0 8.2 410,330

32.2 25.0 6.309 28.8 3.4 89,402 66.6 73.9 6.309 71.1 4.6 120,226

* Multiply by 2.2 for 208VAC, by 0.8 for 575VAC Compressor: ZR190KCE-TFD (460-3-60)

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BACnet Interface The BACnet interface is an MS/TP connection via RS-485 twisted pair. There is a termination jumper if required to terminate the con-nection. It is located just above the BACnet connector, marked as TERM on the control board. The connector on the control board is a three wire removable screw connector. The signals are as follows: A: Communications line (+) (right pin) B: Communications line (-) (middle pin) C: Ground connection (left pin) Vendor: Maritime Geothermal Ltd. Vendor ID: 260 Model Name: MGT GEN2 Control Board

The following parameters can be set via the LED Display Configuration Menu or via the PC APP Configuration Page.

1) Baud rate 2) Instance number 3) MAC address

The data is available regardless of the selected control method. In order to control the unit via the BACnet interface, set the Control Source to BACnet either by using the PC APP configuration page or the display menus.

The following tables provide a list of the objects applicable to this model series, along with a description of each. Note that there may be other objects available that do not apply to this model.

BACnet OBJECTS - CONTROL SIGNALS (READ/WRITE)

Name Data Type ID Property Description

SYSTEM_Y1A Binary Value BV0 Present Value Stage 1 - bottom compressor (active is on)

SYSTEM_Y2A Binary Value BV1 Present Value Stage 2 - top compressor (active is on)

BACnet_Units Binary Value BV9 Present Value Select the units to use for the BACnet objects

Note: object names may be subject to change without prior notice.

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BACnet OBJECTS - DATA (READ ONLY)

Name Data Type ID Property Units Description

LPS1 Analog Input AI6 Present Value PSIG (kPa) Stage 1 Low pressure value (suction pressure)

HPS1 Analog Input AI7 Present Value PSIG (kPa) Stage 1 High pressure value (discharge pressure)

EVAP1 Analog Input AI8 Present Value degF (degC) Stage 1 Evaporating Temperature

COND1 Analog Input AI9 Setpoint Value degF (degC) Stage 1 Condensing Temperature

Suction_Line1 Analog Input AI10 Present Value degF (degC) Stage 1 Suction line temperature

Superheat1 Analog Input AI11 Setpoint Value degF (degC) Stage 1 Superheat

EEV1_POS Analog Input AI12 Present Value % Stage 1 EEV position (% open)

LPS2 Analog Input AI13 Present Value PSIG (kPa) Stage 2 Low pressure value (suction pressure)

HPS2 Analog Input AI14 Present Value PSIG (kPa) Stage 2 High pressure value (discharge pressure)

EVAP2 Analog Input AI15 Present Value degF (degC) Stage 2 Evaporating Temperature

COND2 Analog Input AI16 Setpoint Value degF (degC) Stage 2 Condensing Temperature

Suction_Line2 Analog Input AI17 Present Value degF (degC) Stage 2 Suction line temperature

Superheat2 Analog Input AI18 Setpoint Value degF (degC) Stage 2 Superheat

EEV2_POS Analog Input AI19 Present Value % Stage 2 EEV position (% open)

Outside_Temp Analog Input AI20 Present Value degF (degC) Outdoor Ambient temperature—ACCESSORY

O_IN Analog Input AI21 Present Value degF (degC) Indoor IN temperature

O_OUT Analog Input AI22 Present Value degF (degC) Indoor OUT temperature

I_IN Analog Input AI23 Present Value degF (degC) Indoor IN temperature

I_OUT Analog Input AI24 Present Value degF (degC) Indoor OUT temperature

Comp1_Current Analog Input AI0 Present Value A Stage1 compressor current draw (AI0)

Comp2_Current Analog Input AI1 Present Value A Stage2 compressor current draw (AI1)

AI_2 Analog Input AI2 Present Value User Selectable User defined (0-5VDC or 4-20mA)

AI_3 Analog Input AI3 Present Value User Selectable User defined (0-5VDC or 4-20mA)

AI_4 Analog Input AI4 Present Value User Selectable User defined (0-5VDC or 4-20mA)

AI_5 Analog Input AI5 Present Value User Selectable User defined (0-5VDC or 4-20mA)

PWM_IN Analog Value AV0 Present Value % PWM input (from external source)

PWM1 Analog Value AV1 Present Value % PWM output value (spare)

PWM2 Analog Value AV2 Present Value % PWM output value (spare)

PWM3 Analog Value AV3 Present Value % OV2 - PWM or 0-10VDC for Outdoor Loop water valve

PWM4 Analog Value AV4 Present Value % IV2 - PWM or 0-10VDC for Indoor Loop water valve

STAGE1 Binary Output BO0 Present Value N/A Compressor#1 contactor

STAGE2 Binary Output BO1 Present Value N/A Compressor#2 contactor

ICR Binary Output BO2 Present Value N/A Indoor circulator control

DO_0 Binary Output BO3 Present Value N/A OV1 (for 24VAC Outdoor Loop water valve)

DO_1 Binary Output BO4 Present Value N/A IV1 (for 24VAC Indoor Loop water valve)

HYD_AUX Binary Output BO5 Present Value N/A Hydronic Auxiliary

DO_3 Binary Output BO6 Present Value N/A Hydronic Auxiliary Only (without compressor)

PHS_1 Binary Output BO7 Present Value N/A Dry contact lockout pin for Stage 1

PHS_2 Binary Output BO8 Present Value N/A Dry contact lockout pin for Stage 2

Outdoor Flow Binary Value BV10 Present Value N/A Outdoor Loop flow switch

Indoor Flow Binary Value BV11 Present Value N/A Indoor Loop flow switch

Phase Monitor1 Binary Value BV12 Present Value N/A Phase Monitor Stage 1

Phase Monitor2 Binary Value BV13 Present Value N/A Phase Monitor Stage 2

Comp_Monitor1 Binary Value BV14 Present Value N/A Compressor Monitor Stage 1

Comp_Monitor2 Binary Value BV15 Present Value N/A Compressor Monitor Stage 2

Note: available objects may be subject to change without prior notice.

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BACnet OBJECTS - ALARMS AND FAULTS (READ ONLY)

Name Data Type ID Alarm / Fault Description

LPS1 Analog Value AI6 Alarm Low pressure alarm Stage 1.

HPS1 Analog Value AI7 Alarm High pressure alarm Stage 1.

LPS2 Analog Value AI13 Alarm Low pressure alarm Stage 2.

HPS2 Analog Value AI14 Alarm High pressure alarm Stage 2.

Outdoor Flow Binary Value BV10 Alarm Outdoor Loop flow alarm.

Indoor Flow Binary Value BV11 Alarm Indoor Loop flow alarm.

Phase Monitor1 Binary Value BV12 Alarm Phase Monitor alarm Stage 1.

Phase Monitor2 Binary Value BV13 Alarm Phase Monitor alarm Stage 2.

Comp_Monitor1 Binary Value BV14 Alarm Compressor Monitor alarm Stage 1.

Comp_Monitor2 Binary Value BV15 Alarm Compressor Monitor alarm Stage 2.

PERM_ALARMS1 Binary Value BV16 Alarm Indicates a permanent alarm for Stage 1.

PERM_ALARMS2 Binary Value BV17 Alarm Indicates a permanent alarm for Stage 2.

LPS1 Analog Value AI6 Fault Low pressure sensor faulty or disconnected Stage 1.

HPS1 Analog Value AI7 Fault High pressure sensor faulty or disconnected Stage 1.

LPS2 Analog Value AI13 Fault Low pressure sensor faulty or disconnected Stage 2.

HPS2 Analog Value AI14 Fault High pressure sensor faulty or disconnected Stage 2.

Suction_Line1 Analog Value AI10 Fault Suction line 1 temperature sensor faulty or disconnected.

Suction_Line2 Analog Value AI17 Fault Suction line 2 temperature sensor faulty or disconnected.

Outside_Temp Analog Value AI20 Fault Outside temperature sensor faulty or disconnected (ACCESSORY).

O_IN Analog Value AI21 Fault Outdoor IN temperature sensor faulty or disconnected.

O_OUT Analog Value AI22 Fault Outdoor OUT temperature sensor faulty or disconnected.

I_IN Analog Value AI23 Fault Outdoor IN temperature sensor faulty or disconnected.

I_OUT Analog Value AI24 Fault Outdoor OUT temperature sensor faulty or disconnected.

Note: objects may be subject to change without prior notice.

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General The liquid source water-to-water heat pump shall be a single packaged dual refrigeration circuit unit. The unit shall be listed by a nationally recognized testing laboratory (NRTL), such as UL, CSA, TUV, or ETL. The unit shall be rated in accordance with applicable standards of the Air Conditioning, Heating, and Refrigeration Institute / International Stand-ards Organization (AHRI/ISO) and/or Canadian Standards Association (CSA). The liquid source water to water heat pump, as manufactured by Maritime Geothermal Ltd. of Petitcodiac, New Brunswick, Canada shall be designed to oper-ate correctly within liquid temperature ranges specified on the “Minimum and Maximum Operating Temperatures” page of this engineering specification document. Factory Quality Each unit shall be run tested at the factory with water circulating in both indoor and outdoor loops. Quality control system checks shall include: computerized nitrogen pressurized leak test, evacuation of refrigeration circuit to sustained vacu-um, accurate system charge, detailed heating and cooling mode tests, and quality cross check all operational and test conditions to pass/fail criteria. Units tested without water flow are not acceptable. The units shall be warranted by the manufacturer against defects in materials and workmanship in accordance with the warranty section at the end of this document. Optional extended factory warranty coverage may be available. Cabinet Each unit shall be constructed with a heavy duty standalone frame, and may optionally be enclosed in a sheet metal cabinet. Frame shall be constructed of powder coated galvanized sheet metal of minimum 11 gauge. Cabinet shall be constructed of powder coated galvanized sheet metal of minimum 16 gauge. Sheet metal gauge shall be higher where structurally required. Design and construction of cabinet shall be such that it is rigid and passes the CSA/UL Loading Test requirements (200 lb roof test and 25 lb guard test). All panels shall be lined with minimum 1 inch [25.4 mm] thick acoustic type glass fiber insulation. All insulation shall meet the fire retardant provisions of NFPA 90A. This material shall also provide acoustical benefit. Any enclosure must have all sides removable, for serviceability. Enclosures having non-removable sides shall not be acceptable. The electrical box shall have separate holes and knockouts for entrance of line voltage and low voltage control wiring. All factory-installed wiring passing through factory knockouts and openings shall be protected from sheet metal edges at openings by plastic grommets. Refrigerant Circuit All units shall contain two separate sealed refrigerant circuits, each containing a hermetic motor scroll compressor, one electronic expansion valve, factory installed high and low pressure safety controls or sensors, service ports, solid core filter-dryer, sight glass, reversing valve (for reversing units), and suction accumulator. Refrigerant circuits shall share true dual circuit brazed plate heat exchangers. Reversing valve shall be of full port type and shall be of all-metal construction. Reversing valves with non-metal me-chanical components shall not be acceptable. Compressors shall be specified for heat pump duty with internal isolation consisting of rubber vibration isolators. Com-pressor motors shall have internal overload protection. Compressor shall be mechanically isolated from rest of refriger-ant circuit by suction and discharge vibration absorbers. Compressor shall be equipped with a crankcase/sump heater to prevent liquid refrigerant migration during the off cycle and subsequent flooded starts. The water to refrigerant heat exchangers shall be of a stainless steel brazed plate design, designed and certified for 650 psig [4480 kPa] working pressure on the refrigerant side and 650 psig [4480 kPa] on the water side. Heat exchangers shall be insulated over all of their outside surface with minimum 3/8” thick closed cell insulation. Insulation consisting of 1/8” closed-cell insulating tape shall not be acceptable. The electronic expansion valves shall be of stepper-motor rather than pulsing type, and shall provide proper superheat control over the unit’s operating range with minimal deviation from superheat setpoint. The valves shall be controlled by electronic superheat controller(s) which provide operator-adjustable superheat and real-time LED/LCD display of current superheat. Superheat shall be determined through the suction pressure-temperature method. Externally mounted pres-sure controlled water regulating flow valves or thermostatic expansion valves (TXV’s) in place of electronic expansion valves are not acceptable.

Engineering Guide Specifications

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The suction accumulator shall be insulated with minimum 3/8” thick closed cell insulation to prevent condensation. The accumulator’s internal oil return port shall be sized properly for the unit’s operating range. To ensure proper oil return, suction accumulator shall not be ‘oversized’. Piping and Connections The unit shall have two sets of primary water in and water out connections (outdoor and indoor). The primary connec-tion type shall be 2” stainless steel pipe for Victaulic connection. All internal water and refrigerant piping shall be insulated with minimum 3/8” thick closed cell insulation. Insulation con-sisting of 1/8” closed-cell insulating tape shall not be acceptable. Electrical Controls and safety devices shall be factory wired and mounted within the unit. Controls shall include 24 volt alternating current (24VAC) activated compressor contactors, reversing valves, and 24VAC 100VA transformer with built in circuit breaker or fused on both primary and secondary sides. Units shall be name-plated for use with time delay fuses or cir-cuit breakers. Unit controls shall be 24VAC and provide heating or cooling as required by the remote thermostat or con-troller. 3-phase protection shall be present in each unit to protect the compressor against loss of phase and reverse rota-tion. 3-phase protection shall be factory installed. Unit shall have dry contacts for controlling loop circulating pumps via an external 24VAC contactor. Unit shall provide remote fault indication to the control system via serial communication and fault messages on front panel LCD display. Unit Control The control system shall have the following features: 1. Anti-short cycle time delay on compressor operation. Time delay shall be a minimum of 5 minutes, for both thermo-

stat demand and safety control reset starts. An override shall be provided to disable this delay for unit commission-ing and testing purposes.

2. Random compressor start delay of 0-120 seconds on unit power up to facilitate starting multiple units after a power failure.

3. Flow switch on outdoor loop, and also on indoor loop for reversing units. 4. Compressor shutdown for high or low refrigerant pressures, low flow conditions and for phase protection faults. 5. Automatic intelligent reset: unit shall automatically restart 5 minutes after trip if the fault has cleared. Should a fault

reoccur 3 times sequentially then permanent lockout shall occur, requiring cycling of the power to the unit in order to reset.

6. Manual reset high pressure in case of electronic board failure. 7. 2 x 16 backlit Liquid Crystal Display (LCD) and four buttons for limited data access. Unit shall be configurable for

stand alone operation with no additional sensors required. 8. Universal Serial Bus (USB) port for full data access and diagnostic information, including real-time charting and

data logging. Maritime Geothermal works continually to improve its products. As a result, the design and specifications of any product may be changed without notice. Please contact Maritime Geothermal at 1-506-756-8135 or visit www.nordicghp.com for latest design and specifications. Purchaser’s approval of this data set signifies that the equipment is acceptable un-der the provisions of the job specification. Statements and other information contained herein are not express warran-ties and do not form the basis of any commercial contract or other agreement between any parties, but are merely Mari-time Geothermal’s statement of opinion regarding its products.

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LIMITED WARRANTY

MARITIME GEOTHERMAL LTD. warrants that its commercial geothermal heat pumps shall be free from defects in materials and workmanship for a period of ONE (1) YEAR after the date of installation or for a period of ONE (1) YEAR AND SIXTY (60) DAYS after the date of shipment, whichever occurs first. This warranty covers all internal components of the heat pump. MARITIME GEOTHERMAL LTD. shall, at its option, repair or replace any part covered by this warranty. Defective parts shall be returned to MARITIME GEOTHERMAL LTD., transportation charges prepaid. Replacement of repaired parts and components are warranted only for the remaining portion of the original warranty period.

This warranty is subject to the following conditions:

1. The geothermal heat pump(s) must be properly installed and maintained in accordance with MARITIME GEOTHERMAL LTD.’s guidelines. Improper installation includes but is not limited to the following conditions: Indoor or outdoor loop flow lower than listed in engineering specification or as expressly

approved by MARITIME GEOTHERMAL LTD. Operating the heat pump either manually or with automated controls so that the unit is forced to

function outside its normal operating range or in a fashion which directly or indirectly leads to failure of components or the entire heat pump

Disabling of safety controls Insufficient loop antifreeze concentration for loop temperature, or antifreeze concentration

incorrectly set in control board Fouled heat exchangers due to poor water quality Failure to use strainers or clean them regularly Impact or physical damage sustained by the heat pump Poor refrigeration maintenance practices, including brazing without nitrogen flow, or using wrong

braze/flux Incorrect voltage or missing phase supplied to unit Unit modified electrically or mechanically from factory supplied condition Water quality outside of recommended limits (e.g. salinity or pH) Unit not mounted with supplied anti-vibration grommets or optional spring feet Corrosion damage due to corrosive ambient environment Failure due to excessive cycling caused by improper mechanical setup or improperly

programmed external controller Physical loads or pressures placed on unit from external equipment

2. The installer must complete the Startup Record and return it to MARITIME GEOTHERMAL LTD. within 21 days of unit installation.

3. For new construction, it is the responsibility of the building or general contractor to supply temporary heat to the structure prior to occupancy. Geothermal heat pumps are designed to provide heat only to the completely finished and insulated structure. Startup of the unit shall not be scheduled prior to completion of construction and final duct installation for validation of this warranty.

4. It is the customer's responsibility to supply the proper quantity and quality of water or properly sized ground loop with adequate freeze protection.

MARITIME GEOTHERMAL LTD.'s sole and exclusive liability shall be, at its option, to repair or replace any part or component which is returned by the customer during the applicable warranty period set forth above, provided that (1) MARITIME GEOTHERMAL LTD. is promptly notified in writing upon discovery by the customer that such part or component fails or is defective (2) the customer returns such part or component to MARITIME GEOTHERMAL LTD., transportation charges prepaid, within (30) thirty days of failure, and (3) MARITIME GEOTHERMAL LTD.'s examination of such component discloses to its satisfaction that such part or component has failed or is defective and was not caused by one of the circumstances listed above. MARITIME GEOTHERMAL LTD. will not be responsible for any consequential damages or labour costs incurred. In additional, MARITIME GEOTHERMAL LTD. will not be responsible for the cost of replacement parts purchased from a third party.