Trane INTELLIPAK ™ ™ ™ ™ ™ Commercial Single-Zone Rooftop Air Conditioners with CV or VAV Control User Manual
Page 3
3
Table of Contents
Section One
About The Manual ............................................................... 2
General Information ............................................................. 4
Model Number Description .............................................. 4
Hazard Identification ........................................................ 6
Commonly Used Acronyms ............................................. 6
Unit Description ................................................................ 6
Input Devices & System Functions .................................. 8
Constant Volume & Variable Air Volume Units ................ 8
Constant Volume (CV) Units .......................................... 10
Variable Air Volume (VAV) Units .................................... 11
Section Three
Installation .......................................................................... 14
Unit Inspection ............................................................... 14
Storage ........................................................................... 14
Unit Clearances ............................................................. 14
Unit Dimensions & Weight Information .......................... 14
Roof Curb and Ductwork ............................................... 22
Pitch Pocket Location .................................................... 23
Unit Rigging & Placement .............................................. 23
General Unit Requirements ........................................... 25
Main Electrical Power Requirements ............................. 25
Field Installed Control Wiring ......................................... 25
Requirements for Electric Heat Units ............................ 25
Requirements for Gas Heat ........................................... 25
Requirements for Hot Water Heat (SLH_) ..................... 25
Requirements for Steam Heat (SSH_) .......................... 26
O/A Pressure Sensor and Tubing Installation ............... 26
Condensate Drain Connection ....................................... 27
Shipping Fasteners ........................................................ 27
O/A Sensor & Tubing Installation ................................... 31
Units with Statitrac™; .................................................... 31
Gas Heat Units (SFH_) .................................................. 32
Connecting the Gas Supply Line to the Furnace
Gas Train ........................................................................ 32
Flue Assembly Installation ............................................. 34
Hot Water Heat Units (SLH_) ........................................ 34
Steam Heat Units (SSH_) .............................................. 35
Disconnect Switch External Handle ............................... 38
Electric Heat Units (SEH_) ............................................ 38
Main Unit Power Wiring ................................................. 38
Disconnect Switch Sizing (DSS) .................................... 44
Field Installed Control Wiring ......................................... 45
Controls using 24 VAC ................................................... 45
Controls using DC Analog Input/Outputs ....................... 45
Constant Volume System Controls ................................ 45
Variable Air Volume System Controls ............................ 46
Constant Volume or Variable Air Volume System
Controls .......................................................................... 46
Section Four
Unit Start-Up ...................................................................... 55
Cooling Sequence of Operation .................................... 55
Gas Heating Sequence of Operation ............................. 56
Fenwal Ignition System .................................................. 56
Honeywell Ignition System ............................................. 56
Modulating Gas Sequence of Operation ....................... 57
Flame Failure ................................................................. 57
Electric Heat Sequence of Operation ............................ 58
Wet Heat Sequence of Operation .................................. 58
Electrical Phasing .......................................................... 59
Voltage Supply and Voltage Imbalance ......................... 60
Service Test Guide for Component Operation ............... 61
Verifying Proper Fan Rotation ....................................... 63
If all of the fans are rotating backwards; ........................ 63
System Airflow Measurements ...................................... 63
Constant Volume Systems ............................................. 63
Variable Air Volume Systems ......................................... 65
Exhaust Airflow Measurement ....................................... 66
Traq
TM
Sensor Airflow Measurement ............................ 66
Economizer Damper Adjustment ................................. 80
Compressor Start-Up ................................................... 82
Compressor Operational Sounds ................................ 83
Thermostatic Expansion Valves ................................... 93
Charging by Subcooling .............................................. 93
Low Ambient Dampers ................................................. 93
Electric, Steam and Hot Water Start-Up ...................... 94
Gas Furnace Start-Up .................................................. 94
Two Stage Gas Furnace ............................................... 95
Full Modulating Gas Furnace ....................................... 97
Limited Modulating Gas Furnace ................................ 98
Final Unit Checkout ...................................................... 99
Section Five
Service & Maintenance .................................................... 100
Fan Belt Adjustment ..................................................... 104
Scroll Compressor Replacement ................................. 105
VFD Programming Parameters ................................... 106
Monthly Maintenance ................................................... 107
Filters ............................................................................ 107
Cooling Season ............................................................ 107
Heating Season ............................................................ 108
Coil Cleaning ................................................................ 108
Final Process .............................................................. 109
Index ........................................................................... 111
Warranty ..................................................................... 114