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Modine Manufacturing Company

1500 DeKoven Avenue

Racine, WI 53403 

Phone: 1.877.679.4436 (4GEO) 

www.modinehvac.com

© Modine Manufacturing Company 2016

As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice.

COMMERCIAL WARRANTY 

(For Residential Warranty, see GEO16-510)

Seller warrants its products to be free from defects in material and 

workmanship, EXCLUSIVE, HOWEVER, of failures attributable to the use  

of materials substituted under emergency conditions for materials normally 

employed. This warranty covers replacement of any parts furnished from the 

factory of Seller, but does not cover labor of any kind and materials not 

furnished by Seller, or any charges for any such labor or materials, whether 

such labor, materials or charges thereon are due to replacement of parts, 

adjustments, repairs, or any other work done. This warranty does not apply to 

any equipment which shall have been repaired or altered outside the factory of 

Seller in any way so as, in the judgment of Seller, to affect its stability, nor 

which has been subjected to misuse, negligence, or operating conditions in 

excess of those for which such equipment was designed. This warranty does 

not cover the effects of physical or chemical properties of water or steam or 

other liquids or gases used in the equipment. 
BUYER AGREES THAT SELLER’S WARRANTY OF ITS PRODUCTS TO BE 

FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP, AS LIMITED 

HEREIN, SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER 

WARRANTIES, EITHER EXPRESS OR IMPLIED, WHETHER ARISING  

FROM LAW, COURSE OF DEALING, USAGE OF TRADE, OR OTHERWISE,  

THERE ARE NO OTHER WARRANTIES, INCLUDING WARRANTY OF 

MERCHANTABILITY OR FITNESS FOR PURPOSE, WHICH EXTEND 

BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND 

SELLER AS OF THE DATE OF FINAL AGREEMENT.

This warranty is void if the input to the product exceeds the rated input as 

indicated on the product serial plate by more than 5% on gas-fired and oil-fired 

units, or if the product in the judgment of SELLER has been installed in a 

corrosive atmosphere, or subjected to corrosive fluids or gases, been subjected  

to misuse, negligence, accident, excessive thermal shock, excessive humidity, 

physical damage, impact, abrasion, unauthorized alterations, or operation 

contrary to SELLER’S printed instructions, or if the serial number has been 

altered, defaced or removed.
BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR 

COSTS OF PROCESSING, LOST PROFITS, INJURY TO GOODWILL, OR 

ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND 

RESULTING FROM THE ORDER OR USE OF ITS PRODUCT, WHETHER 

ARISING FROM BREACH OF WARRANTY, NONCONFORMITY TO 

ORDERED SPECIFICATIONS, DELAY IN DELIVERY, OR ANY LOSS 

SUSTAINED BY THE BUYER.

BUYER’S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL 

OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR 

REPLACEMENT AT THE FACTORY OF SELLER, ANY COMPONENT WHICH 

SHALL, WITHIN THE APPLICABLE WARRANTY PERIOD DEFINED HEREIN 

AND UPON PRIOR WRITTEN APPROVAL, BE RETURNED TO SELLER 

WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE 

EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE; 

EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A 

COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER, 

BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE 

LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER. FOR 

GAS-FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS 

AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS, BUYER’S 

REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO  

TEN YEARS FROM DATE OF SHIPMENT FROM SELLER.
These warranties are issued only to the original owner-user and cannot be 

transferred or assigned. No provision is made in these warranties for any  

labor allowance or field labor participation. Seller will not honor any expenses 

incurred in its behalf with regard to repairs to any of Seller’s products. No 

credit shall be issued for any defective part returned without proper written 

authorization (including, but not limited to, model number, serial number,  

date of failure, etc.) and freight prepaid.  
OPTIONAL SUPPLEMENTAL WARRANTY

Provided a supplemental warranty has been purchased, Seller extends the 

warranty herein for an additional four (4) years on certain compressors.  

Provided a supplemental warranty has been purchased, Seller extends the 

warranty herein for an additional four (4) years or nine (9) years on certain  

heat exchangers.
EXCLUSION OF CONSUMABLES & CONDITIONS BEYOND SELLER’S 

CONTROL

This warranty shall not be applicable to any of the following items: refrigerant 

gas, belts, filters, fuses and other items consumed or worn out by normal wear 

and tear or conditions beyond Seller’s control, including (without limitation as  

to generality) polluted or contaminated or foreign matter contained in the air or 

water utilized for heat exchanger (condenser) cooling or if the failure of the part 

is caused by improper air or water supply, or improper or incorrect sizing of 

power supply.

Component

Applicable Models

“APPLICABLE WARRANTY PERIOD”

Heat Exchangers 

Gas-Fired Units

Heat Exchangers

Low Intensity Infrared Units

Compressors

Condensing Units for Cassettes

Burners

Low Intensity Infrared Units

Other

Components excluding Heat Exchangers,  

Coils, Condensers, Burners, Sheet Metal

Heat Exchangers/Coils 

Indoor and Outdoor Duct Furnaces and  

System Units, Steam/Hot Water Units,  

Oil-Fired Units, Electric Units, Cassettes,  

Vertical Unit Ventilators, Geothermal Units

Compressors

Vertical Unit Ventilators, Geothermal Units

Burners

High Intensity Infrared Units

Sheet Metal Parts

All Products

TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN 

TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN TEN YEARS 

FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN ONE 

HUNDRED TWENTY-SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER 

OCCURS FIRST

FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN 

FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN FIVE YEARS 

FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN SIXTY-SIX 

MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN 

TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN 

THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN  

ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN 

EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

Summary of Contents for GEO16-501.4

Page 1: ...ncy must perform all installation and service of these appliances 2 GS ES Split Units contain the refrigerant R 410A Review the R 410A Material Safety Data Sheet MSDS for hazards and first aid measures 3 Refrigerant charging should only be carried out by an EPA certified air conditioning contractor GEO16 501 4 5H0839240000 INSTALLATION AND SERVICE MANUAL ground source heat pump split unit model GS...

Page 2: ...ce coaxial heat exchanger to reduce mineral buildup and scaling Open loop systems should have the source coaxial coil flushed periodically to maintain peak performance 6 All piping and connections must be made in accordance with local plumbing codes 7 To check most of the Possible Remedies in the troubleshooting guide listed in Tables 22 1 24 1 refer to the applicable sections of the manual WARNIN...

Page 3: ... GS Residential Split Unit ES Commercial Split Unit 3 Unit Configuration UC I Indoor 4 5 6 Nominal Cooling Capacity MBH 024 24 000 Btu hr 036 36 000 Btu hr 048 48 000 Btu hr 060 60 000 Btu hr 072 72 000 Btu hr 7 Development Sequence Designation DS D Current 8 Compressor Configuration CC 2 Two Stage 4 Two Stage w Soft Start 9 10 Supply Voltage SV 03 208 230 60 1 11 Controls Type CT 4 Modine Control...

Page 4: ... 14 26 14 26 F 11 76 10 32 12 18 11 76 11 76 Geo DHW H 2 00 2 00 2 00 2 00 2 00 J 7 14 7 14 7 14 7 14 7 14 K 14 24 14 24 14 24 14 24 14 24 L 21 25 18 62 17 36 21 25 21 25 Control M 11 57 11 57 11 57 11 57 11 57 Refrigerant N 8 28 7 54 8 32 8 28 8 28 O 5 35 4 85 5 38 5 35 5 35 Liquid Line Connection Sweat 3 8 3 8 3 8 1 2 1 2 Suction Line Connection Sweat 5 8 3 4 3 4 7 8 7 8 Coil Connection Size Fem...

Page 5: ...orrect electrical power supplies are available for the unit 2 Each unit requires an independently fused and isolated power supply 3 Check to make sure that the units will have adequate installation clearance for easy access to remove all panels and access all internal components Provide ample area to access external components in and around the unit and system including water valves fittings and a...

Page 6: ...ction rubber gasket and brass spacer kits are shipped with unit To make the connection mate the field supplied male pipe thread fitting against the rubber gasket in the swivel connector and thread the female locking ring onto the pipe threads while maintaining the brass elbow in the desired direction Tighten the connectors by hand and then gently snug the fitting with pliers to provide a leak proo...

Page 7: ...e 12 1 Refrigerant Line Sets Only ACR grade copper tubing should be used Recommended line sets are shown in Table 9 2 Refer to the table for proper line sizing as well as maximum allowable lengths of the line set The table is based on equivalent line length Equivalent Line Length is the combination of the actual lengths of all straight runs and the equivalent length of all bends valves and fitting...

Page 8: ...ot recommended The decreased diameter of the inlet and outlet pipes to the heat pump make it possible for debris build up and completely stop the flow of water to and from the desuperheater 1 Turn off power or fuel supply to the water heater 2 Close cold water supply valve to heater 3 Drain and flush the tank then remove the drain valve 4 Inspect the water heater cold water inlet pipe for a check ...

Page 9: ...n a charge adjustment must be calculated INSTALLATION Equivalent Line Length Air Handler Size A Coil Size Split Unit Size 20 Feet 40 Feet 60 Feet Split Unit Factory Charge oz No HWG Split Unit Factory Charge oz w HWG Suction Liquid Suction Liquid Suction Liquid 024 024 024 5 8 3 8 5 8 3 8 3 4 3 8 93 96 036 036 036 3 4 3 8 3 4 3 8 3 4 1 2 99 103 048 048 048 3 4 3 8 7 8 3 8 7 8 1 2 125 128 060 060 0...

Page 10: ...le on the terminal Press firmly until the screwdriver hits the back stop and opens the terminal see Figure 10 1 2 Remove approximately 3 8 of insulation from the end of the wire and push the stripped wire into the oval hole in the terminal 3 Remove the screwdriver Pull on the wire to make sure that it is securely clamped in the terminal 4 Make sure that the terminal clamp is in contact with bare w...

Page 11: ...Wiring The thermostat wires are connected directly to the appropriate terminal blocks in the electrical box Refer to the unit wiring diagram or control manual for details Thermostat Installation and Wiring The thermostat should be located on an interior wall in a larger room approximately 54 off the floor and away from supply duct drafts DO NOT locate the thermostat in areas subject to sunlight dr...

Page 12: ...and wired to the unit control board When installed the controller will shut down the unit in the event of a plugged condensate drain line Failure to wire the switch to unit may result in damage to the furnace or property The condensate switch accessory assembly 3H0387860001 is available for field installation It is supplied with 75 of lead wire The condensate alarm is a 24V normally closed dry con...

Page 13: ...e 13 1 Electrical Data ELECTRICAL DATA ELECTRICAL DATA Models 024 036 048 060 072 Supply Voltage 208 230 60 1 Min Max Voltage 197 253 FLA 15 7 19 7 28 1 34 7 37 6 MCA 18 5 23 5 33 5 41 8 45 4 MOP 30 0 40 0 50 0 70 0 70 0 ...

Page 14: ...nd water temperatures are within operating limits in Table 16 2 CAUTION Verify that ALL water control valves are open and allow water flow prior to engaging the compressor Freezing of the coax or water lines can permanently damage the heat pump CAUTION To avoid equipment damage DO NOT leave system filled in a building without heat during the winter unless antifreeze is added to the water loop Heat...

Page 15: ...stage airflow The compressor will be limited by a timer that will provide anti cycle protection When a subsequent Y2 signal is received the second stage of the compressor will be energized and the blower will provide second stage airflow two stage units with ECM only Heat Upon receiving a G and Y1 and signal from the thermostat the blower and compressor will be energized On two stage units with EC...

Page 16: ... 1 5 127 136 210 280 11 15 8 14 19 23 20 24 3 0 125 134 250 270 11 15 8 14 9 12 20 24 90 1 5 132 144 360 380 10 14 8 14 18 22 18 22 3 0 130 142 330 350 10 14 8 14 9 12 18 22 Table 16 2 Operating Limits NOTE Limits are acceptable for start up conditions only Min max limits are intended for bringing the space up down to normal temperatures Units are not designed to operate at the min max conditions ...

Page 17: ...ter Flow Cooling Low Low Low Low High High Low Low Indoor Air Load Water Temp Heating Low Low Low Low Normal High High Normal High Low Indoor Air Load Water Temp Cooling Low Low Low Low Normal High Low Low High Indoor Air Load Water Temp Heating High High High Normal High Low Normal Low Low High Indoor Air Load Water Temp Cooling High High High High Low Low High Restricted TXV High Low Low Normal ...

Page 18: ...6 048 060 072 Compressor Two Stage Copeland Ultratech Coaxial Coil Internal Water Volume gal 1 1 1 8 2 1 2 5 2 5 Nominal Coaxial Water Flow Rate GPM 6 0 9 0 12 0 15 0 18 0 Nominal Cooling Capacity Tons 2 0 3 0 4 0 5 0 6 0 MATCHING GA EA AIR HANDLER 024 036 048 060 072 MATCHING CASED UNCASED COIL 3H038824 1024 0024 1036 0036 1048 0048 1060 0060 ...

Page 19: ...cles Closed loop systems must have positive static pressure Coaxial Coil Maintenance Ground Loop Applications Generally water coil maintenance is not needed for closed loop systems However if the piping is known to have high dirt or debris content best practice is to establish a periodic maintenance schedule with the owner so the coil can be checked on a regular basis Dirty installations are typic...

Page 20: ... should be obtained by contacting the local distributor or Modine Sales Representative The sales representative can assist with Return Material Authorizations RMAs and potential warranty claims The following details are required to process parts orders and warranty claims 1 Full description of part required including unit s model number 2 The complete unit s serial number 3 Completed Return Materi...

Page 21: ...stalled in order to check subcooling and superheat 1 Verify that the unit and flow center power supplies are on 2 Verify that all fuses or disconnects switches are intact 3 Inspect unit for obvious defects e g leaking connections loose or damaged wiring etc 4 Verify field inputs and outputs refer to wiring diagram a Thermostat inputs Thermostat inputs are 24VAC signals and can be verified using a ...

Page 22: ...out and reset controller X X Defective compressor overload Ensure that compressor is cool and overload has had sufficient time to reset Ohmmeter shows a resistance across R S terminals and OPEN or infinite resistance between C R or C S terminals If windings are open or overload is faulty replace compressor X X Compressor motor burn out or open windings Ohmmeter shows no resistance or OPEN between ...

Page 23: ...rge X Plugged bi flow filter drier Verify that low pressure cut out occurs in heating mode and not in cooling mode Replace filter if necessary X X Restricted TXV Verify superheat and subcooling values Replace if necessary X X Defective low pressure switch Monitor suction pressure while operating verify low pressure cut out pressure 25 5 psig If defective replace High pressure cutout X Reduced wate...

Page 24: ...sue X X Low refrigerant charge Check superheat and subcooling values Check for refrigerant leaks If leaks found evacuate repair and recharge to factory recommended charge X X Scaled or plugged coaxial coil Check temperature drop across coaxial coil Replace or clean if dirty X Reduced water flow Check flow center operation Troubleshoot flow center Manually open water valve and measure water flow Ad...

Page 25: ...____ Serial ______________________________ Antifreeze ____________ ___Startup ___Troubleshooting Complaint __________________________________________________________ COOLING CYCLE ANALYSIS HEATING CYCLE ANALYSIS Note In order to maintain optimal performance DO NOT hook up pressure gauges during start up procedures When troubleshooting conduct water side analysis first If water side performance is ...

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Page 28: ...PONENT PART OF EQUIPMENT MANUFACTURED BY BUYER BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER FOR GAS FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO TEN YEARS FROM DATE OF SHIPMENT FROM SELLER These warranties are issued o...

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