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Trane Rental Services

Low-temp Air-handling Unit

Installation Instructions

July 2020

CHS-SVN011C-EN

SAFETY WARNING

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of 
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. 
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. 
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are 
attached to the equipment.

Summary of Contents for PCC-1L-3210-4-7.5

Page 1: ...tarting up and servicing of heating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by an un...

Page 2: ...equipment that is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Kn...

Page 3: ...ents perform these tasks Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury WARNING Improper Unit Lift Test lift uni...

Page 4: ...Introduction 4 CHS SVN011C EN Included new design sequence low temp air handler specifications applicationsconsideration installation and operations procedures Updated for Trane Technologies...

Page 5: ...ultiple AHU Applications 7 General Information 8 Airside Data 8 Electrical Data 8 Waterside Data 8 Features 9 Modes of Operation 10 F0 Units 10 F1 Units 12 Installation and Startup Guidelines 14 Three...

Page 6: ...description for modes of operation The purpose of this document is to aid in the start up and installation of the equipment troubleshoot guidelines and maintenance steps Please contact Trane Rental Se...

Page 7: ...can only be achieved by restricting the airflow Please contact Trane Rental Services for suggestions on accomplishing this task F1 model AHUs do have the capability to modulate air since they are equ...

Page 8: ...pe Connection Type Female Pipe Thread F0 Units Garden Hose F1 Units NOTICE Water Damage Connecting all drains to a common line with only one trap could result in condensate retention and possible wate...

Page 9: ...isy Chain Capable Table 2 Dimensions and Weights F0 F1 Length 9 ft 6 in 8 ft 6 in Width w o Long Throw Adapter 4 ft 4 in 5 ft 5 in Width w Long Throw Adapter 6 ft 0 in n a Height 7 ft 2 in 7 ft 3 in S...

Page 10: ...licensed service individual who has been properly trained in handling exposed rotating components perform these tasks Failure to follow all safety precautions could result in rotating components cutt...

Page 11: ...t termination fan delay thermostat settings are to be programmed per the need of each cooling coil a Unit is in defrost when Power and Defrost lights are on b Upon initiation of the defrost cycle powe...

Page 12: ...20V signal through the communications cable initiating a cooling cycle Then for 50 minutes adjustable but factory set at 50 the FOLLOW unit runs at full cooling capacity After the 50 minute cooling cy...

Page 13: ...inside the control cabinet In AH mode turn the defrost timer to the lowest time value setting The fan mode is either VFD or BYPASS soft start depending on the fan selection switch position on the cont...

Page 14: ...hand use your other hand to remove the top two nuts Use both hands to remove the guard or adapter For systems with a defrost timer clock F0 units check the timer to see that it is set for the correct...

Page 15: ...ch and cam control the open position of the valve The actuator can be rotated without power by pressing down on the override shaft connected to the actuator s gear box and rotating the shaft by hand A...

Page 16: ...Three Way Valve Operation 16 CHS SVN011C EN F1 Units Bypass Valve Positions Spring closed position Bypass cycle Spring closed position Bypass cycle...

Page 17: ...erential in the unit by adjusting the differential value and hence its Highest Set Point HSP for the application Shown below is a schematic which illustrates how to use the adjustment knob and differe...

Page 18: ...Thermostat 18 CHS SVN011C EN To better understand the thermostat sequence of operation see schematic shown below Thermostat Sequence of operation schematic...

Page 19: ...re sensor or sensor wiring Output functions according to the selected sensor failure mode SF See Troubleshooting Procedure Cycle power to reset the control EE Program failure Output is off Reset contr...

Page 20: ...lows the coil to clear of all frost before returning to the cooling cycle If this does not occur the timer settings may need to be adjusted For changing the settings see the section below on TIMERS Th...

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Page 24: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial...

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