Manual 2100-652A
Page
2 of 42
CONTENTS
Getting Other Information and Publications ........ 3
Q-TEC
Series
General Information ........................... 4
Q-TEC
Model Nomenclature ..................................... 4
Shipping Damage .................................................... 7
Unit Removal from Skid ........................................... 7
Handling Unit After Removal from Skid ..................... 8
General .................................................................. 8
Minimum Installation Height .................................... 8
Duct Work............................................................. 10
Filters .................................................................. 10
Fresh Air Intake .................................................... 11
Service Light ......................................................... 11
Condensate Drain .................................................. 11
Optional Rear Drain Kits ........................................ 11
Installation ................................................................. 18
Mounting the Unit ................................................. 18
Wiring – Main Power .............................................. 19
Wiring – Low Voltage .............................................. 19
Optional Climate Controls Sequence of Operation ..... 19
Low Voltage Connections ........................................ 20
General ................................................................ 20
S
tart Up ....................................................................... 27
R-410A Refrigerant: General .................................. 27
Topping Off System Charge .................................... 27
Safety Practices .................................................... 27
Description of Standard Equipment ......................... 28
Optional CFM (Q36, Q42, Q48 and Q60 Only) ......... 28
Important Installer Note ......................................... 28
Phase Monitor ....................................................... 28
Three Phase Scroll Compressor Start Up Info. ......... 28
Service Hints ........................................................ 29
Mist Eliminator Service .......................................... 29
Vent Options ......................................................... 30
Sequence of Operation ........................................... 33
Pressure Service Ports ........................................... 34
Defrost Cycle .........................................................34
Troubleshooting .........................................................36
Solid State HP Control Troubleshooting Procedure .....36
Checking Temperature Sensor ..................................37
Troubleshooting ECM™ Blower Motors .....................38
Fan Blade Setting Dimensions .................................40
Refrigerant Charge ..................................................40
Figures
Figure 1
Unit Dimensions .................................. 6
Figure 2
Air Seal on Bottom of Unit .................... 7
Figure 3
Removal of Unit from Skid.................... 7
Figure 4
Unit on Appliance Cart for Moving ......... 8
Figure 5
Installation With Duct-Free Plenum ....... 9
Figure 6
Ducted Application .............................. 9
Figure 7
Supply Duct Connections.................... 10
Figure 8
Filter Location ................................... 10
Figure 9
Optional Side Drain............................ 12
Figure 10
Standard Rear Drain .......................... 12
Figure 11
Rear Drain (Top View) ........................ 12
Figure 12A Optional Rear Drain Kit ...................... 13
Figure 12B Optional Rear Drain Kit ...................... 14
Figure 12C Optional Rear Drain Kit ...................... 15
Figure 12D Optional Rear Drain Kit ...................... 16
Figure 13A Unit Mounting – Method 1 .................. 17
Figure 13B Unit Mounting – Method 2 .................. 17
Figure 14
Removing Locking Screws from Wheels .18
Figure 15
Component Location .......................... 19
Figure 16
Thermostat Plug Terminals ................. 21
Figure 17A T-Stat Wiring Diagram "X" Opt. ........... 22
Figure 17B T-Stat Wiring Diagram "X" Opt. w/Demand .23
Figure 18
T-Stat Wiring Diagram "D" Opt. .......... 24
Figure 19
T-Stat Wiring Diagram "H" Option ....... 25
Figure 20
T-Stat Wiring Diagram "B" or "C" Opt. .. 26
Figure 21
Fresh Air Damper Removal ................. 31
Figure 22
QERV Removal .................................. 32
Figure 23
CO
2
Controller ................................... 33
Figure 24
Defrost Control Board ......................... 35
Figure 25
Control Disassembly ........................... 39
Figure 26
Winding Test ..................................... 39
Figure 27
Drip Loop .......................................... 39
Figure 28
Fan Blade Setting .............................. 40
Tables
Table 1 Factory Built-In Electric Heat ......................4
Table 2 Electrical Specifications..............................5
Table 3 Operating Voltage Range ...........................19
Table 4 Wall Thermostats .....................................21
Table 5 Troubleshooting ........................................36
Table 6 Temp. vs Resistance of Temp. Sensor .........37
Table 7 Fan Blade Dimension ...............................40
Table 8 Indoor Blower Performance .......................40
Table 9 Cooling Pressure ......................................41
Table 10 Heating Pressure ......................................42
