Trane 120 GEH Operation Manual Download Page 1

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High Efficiency
Horizontal and Vertical
Water-Source Comfort System

Axiom

1/2 - 20 Tons - 50 Hz - Vertical (Model GEV)
1/2 - 12-1/2 Tons - 50 Hz - Horizontal (Model GEH)

WSHP-PRC003-EN

Summary of Contents for 120 GEH

Page 1: ...High Efficiency Horizontal and Vertical Water Source Comfort System AxiomTM 1 2 20Tons 50 Hz Vertical Model GEV 1 2 12 1 2Tons 50 Hz Horizontal Model GEH WSHP PRC003 EN ...

Page 2: ...or small to medium sized office buildings schools manufacturing facili ties health care facilities condomini ums and just about any other light commercial application The following is a list of design improvements contained within all Axiom units 1 Maximum return supply air options 2 Superior maintenance accessibility 3 Dual sloped plastic drain pan 4 Multiple fan speed motor packages 5 Quieter un...

Page 3: ...25 Performance Data 29 Electrical Performance 29 Cool and Heat Performance English 30 Correction Factors English 72 Cool and Heat Performance Metric 75 Correction Factors Metric 117 Fan Performance English Metric 120 Sound Data 134 Control Wiring 135 Dimensional Data 143 Accessories 171 Thermostats and Zone Sensors 180 Options 181 Mechanical Specifications 185 ...

Page 4: ...ply Air Arrangement R Right Supply Air Arrangement T Top Supply Air Arrangement DIGIT 16 RETURN AIR ARRANGEMENT L Left Return Air Arrangement R Right Return Air Arrangement B Back Return Air Arrangement F Front Return Air Arrangement DIGIT 17 CONTROL TYPES 0 Basic 24 V Controls D Deluxe 24 V Controls C Tracer ZN510 Controls B Tracer ZN524 Controls DIGITS 18 TSTAT SENSOR LOCATION 0 Wall Mounted Loc...

Page 5: ...8 288 144 2 130 6 318 288 144 2 130 6 428 398 184 1 180 5 Filter Size nominal in mm 16 3 8 x 23 5 8 425 x 603 16 3 8 x 23 5 8 425 x 603 18 5 8 x 25 3 8 476 x 647 18 5 8 x 25 3 8 476 x 647 20 5 8 x 29 3 4 524 x 756 Blower Wheel in mm Direct Drive 10 x 6 254 x 102 10 x 6 254 x 102 12 x 8 305 x 203 12 x 8 305 x 203 12 x 11 305 x 279 Water in out FPT in mm 3 4 19 3 4 19 3 4 19 1 0 25 1 0 25 Condensate...

Page 6: ... x 997 x 546 26 1 2x41 7 8x24 1 2 673 x 1063 x 622 CompressorType Reciprocating Reciprocating Reciprocating Reciprocating Reciprocating Approx weight with pallet without pallet lbs kg 268 248 121 112 268 248 121 112 308 288 94 131 268 248 121 112 308 288 94 131 Filter Size nominal in mm 17 7 8 x 24 7 8 454 x 632 17 7 8 x 24 7 8 454 x 632 19 7 8 x 24 7 8 505 x 632 17 7 8 x 24 7 8 454 x 632 19 7 8 x...

Page 7: ... 498 4 19 5 8 x 24 5 8 6 498 x 625 6 19 5 8 x 24 5 8 6 498 x 625 6 Blower Wheel in mm Direct Drive 12 625 x 12 625 321 x 321 12 625 x 12 625 321 x 321 12 625 x 12 625 321 x 321 15 x 15 381 x 381 15 x 15 381 x 381 Water in out FPT in mm 1 1 4 32 1 1 4 32 1 1 2 38 1 1 2 38 1 1 2 38 Condensate size NPTI in mm 3 4 19 3 4 19 3 4 19 3 4 19 3 4 19 Model GEH 240 Unit Size in mm Length x Height x Depth 81 ...

Page 8: ...allThickness 0 014 Return Bends Copper Working Pressure 425 Tubes High 18 Tubes Deep 4 No of Circuits 6 Finned vol in mm h w d 18 x 21 x 3 464 457 x 533 x 88 Coil Surface Area Ft2 2 63 Fins Per Inch 12 Tube Material Copper Tube OD in mm 3 8 10 WallThickness 0 014 Return Bends Copper Working Pressure 425 Tubes High 20 Tubes Deep 4 No of Circuits 8 Finned vol in mm h w d 20 x 29 x 3 464 508 x 737 x ...

Page 9: ... Tubes Deep 4 No of Circuits 9 refrig flow paths 2X Finned vol in mm h w d 18 x 73 x 3 464 457 x 1854 x 88 GEH 36 x 34 x 3 464 914 x 864 x 88 GEV Coil Surface Area Ft2 9 125 GEH 8 50 GEV Fins Per Inch 14 Tube Material Copper Tube OD in mm 3 8 10 WallThickness 0 014 Return Bends Copper Working Pressure 425 Tubes High 24 GEH 28 GEV Tubes Deep 4 GEH 2 GEV No of Circuits 8 refrig flow paths 2X GEH 7 r...

Page 10: ...or job site modified See Figure 1 component plat form location GEV 1 2 to 5 Ton Cabinet The vertical design model GEV includes a modular platform utilizing similar parts and assemblies to the hor izontal to provide a repetitious look and feel for installation and maintenance personnel It is constructed of heavy gauge non painted galvanized metal for maximum durability and corrosive resistive exter...

Page 11: ...lexibility See Figure 4 for the six field convertible combinations The GEV model is also capable of on site modifications With the vertical con figuration the supply air is easily con verted from a top supply air to a back supply air with a service retrofit kit The return air option is order specific There are four combinations See Figure 5 for the four GEV supply reutm air options Airflow Options...

Page 12: ...per panels of the 12 1 2 through 20 ton verticals feature a key hole hang ing design for ease of maintenance of the unit allowing the panel to be hooked into place when attaching the panel to the unit The panels are also sealed with a rubber gasket at all four edges to help eliminate air from escaping around the panel s edge See Figure 8 for GEV panel design Drain Pan The unit drain pan is compose...

Page 13: ...and include a National Female Pipe Thread NFPT junction The connections are attached to the unit s chamfer corner to alleviate the need for a back up wrench during installation See Figure 12 for water connection device Water Connections 6 to 20 ton Water hookups for the 6 through 20 ton units are located internal to the equip ment to help alleviate damage to the water copper during shipment or job...

Page 14: ...smaller tonnage units to meet the required air flow demand for the space Access to the 6 through 25 ton units is made through the back of unit by way of two panels and or through a side access panel if adjustment to the motor belt or motor base are needed Blower Housing The blower housing is constructed of non corrosive galvanized steel A facto ry mounted orifice ring is provided for ease of motor...

Page 15: ...ting and core cooling are needed In this system the perimeter units extract heat from the building loop while in the heating mode forcing the building loop temperature to drop Where as the core are of a building may require cooling in summer or in winter based upon light ing people and equipment If the water source system design contained an econo mizing coil option the mod erate temperature loop ...

Page 16: ... application to adjust the blower motor from normal operation to low speed when hot gas reheat is energized Note Trane places an air separation space between the air to refrigerant coil and the reheat coil to allow for maximum moisture removal Common Reheat Applications The hot gas reheat option is designed to support building applications requir ing fresh air ventilation units delivering uncondit...

Page 17: ...it market where overall sys tem upgrade is specified Multi unit 100 installation where units are linked by a common twist ed pair of wire for a communication link Yes SCC LonTalk open protocal Comm 5 Tracer ZN524TM Direct Digital Control board designed to provide control of the entire unit as well as out puts for unit status and fault detection Retrofit market where overall sys tem upgrade is spec...

Page 18: ...omplished through the lockout relay and is used in driving light emitting diodes This feature will drive dry contacts only and cannot be used to drive field installed control inputs See Figure 21 for unit safety devices on the basic 24V control unit Stand alone System The 24 volt electro mechanical design may be applied as a stand alone con trol system The stand alone design provides accurate temp...

Page 19: ...tro mechanical design may be applied as a stand alone control system or as a multi unit instal lation system With a stand alone design units run independently of one another with a mercury bulb or elec tronic digital thermostat With a multiple unit installation the units may be daisy chained directly to theTraneTracer loop controller TLC pump s boiler and tower for a com plete networked water sour...

Page 20: ... pump restart are two options that may be wired to the available relay Note Night setback is available as factory wired An external Class II 24VAC signal will energize the relay coil on terminals R1 and R2 Terminals C common NO normally open and NC normally closed will be provided for the relay contacts Safety Control The deluxe microprocessor receives separate input signals from the refriger ant ...

Page 21: ... ZN524 controllers are designed to coor dinate the waterside of the water source system through theTracer Loop Controller TLC If applied in a peer to peer communication environment data between similar controllers may be exchanged without requiring a building automation system By teaming the ZN510 and ZN524 with theTLC a low first cost for the mechan ical equipment water loop and water pump optimi...

Page 22: ... common space temperature sensor in both stand alone and building automation applications Night Setback The four operations of theTracer ZN510 ZN524 controller include occu pied occupied standby occupied bypass and unoccupied In an occupied situation the controller uses occupied heating and cooling set points to provide heating and cooling to the building This occupied operation is normally used d...

Page 23: ...n or concurrent heating When the unit is configured for boiler less control the EWT will be used to determine whether DX heating should be disabled and the electric heater enabled When these conditions are met the isolation valve s are driven open for three minutes and the enter ing water temperature reading is taken The determination as to whether or not to utilize electric heat will be made and ...

Page 24: ... water source equipment and tying it to a Tracer Summit system provides a com plete building management system EachTracer Summit can connect to a maximum of 120 controllers With the ICS system theTracer can initiate an alarm on a loss of performance on equipment malfunctions allowing problems to be handled in a timely manner before compromising comfort This type of application would most commonly ...

Page 25: ...the drain pan See Figure 29 for unit installation Hanging Devices and Duct Attachments All GEHA units are shipped with a fac tory mounted hanging bracket and rub ber isolation grommet The 3 8 inch 9 5 mm all thread and 3 8 inch 9 5 mm washer and nut are field pro vided One inch duct collars are provided for field duct attachment to the supply air outlet The duct collars filter racks fil ter and gr...

Page 26: ...ase of the coil into the air Air flowing through the coil can then spray condensate into the fan intake with the possi bility of propelling moisture into other parts of the mechanical system This aerosol mist can be carried through the ducts and into the conditioned air space Another problem with air backflow is the source of that air Drain lines typically flow into waste or sewage lines giving th...

Page 27: ...plete pump ing package for distributed pumping systems The module is designed for circulating commercial loops that require a maximum flow rate of 20 gpm 76 lpm Each pump module is fully assembled for connection to water and electrical points The kit contains all of the necessary components for the installation operation and maintenance of a closed loop application See WSHPC IN 5 72 9006 03 for el...

Page 28: ... sup ply example An end supply design increases the overall unit length of the system to accommodate a 90 degree duct turn This not only requires added space but also adds cost in both mate rials and installation Additional value to the design is acquired through the same side sup ply return air design This design elimi nates a requirement for a four sided service access When installing the same s...

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