Nordyne T4BD-042 Series, Installation Instructions Manual

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13 SEER SPLIT SYSTEM HEAT PUMP WITH MICROCHANNEL COILS
T4BD - 042, 048, & 060 (3.5, 4, & 5 TON) SERIES
SINGLE PHASE MODELS
REFRIGERANT CHARGING ............................... 9
Charging the Unit in AC mode ..................................... 9
Charging Charts & Application Notes - (Cooling Only) 10
Figure 6. Charging Chart for 3.5 Ton Units
(TXV Matches) ........................................... 10
Figure 7. Charging Chart for 4 Ton Units
(TXV Matches) ........................................... 11
Figure 8. Charging Chart for 5 Ton Units
(TXV Matches) ........................................... 11
Charging Tables & Application Notes - (Cooling Only) 12
Table 5. Charging Table for T4BE-042KA Series
(3.5 Ton Models) – Restrictor Matches ....... 12
Table 6. Charging Table for T4BE-048KA Series
(4 Ton Models) – Restrictor Matches .......... 12
Table 7. Charging Table for T4BE-060KA Series
(5 Ton Models) – Restrictor Matches .......... 13
Heat Mode Tables & Application Notes (Heating Only) . 14
Table 8. Heat Mode Table for 3.5 Ton Models .......... 15
Table 9. Heat Mode Table for 4 Ton Models ............. 15
Table 10. Heat Mode Table for 5 Ton Models ........... 15
WIRING DIAGRAMS ............................................ 16
Figure 9. Wiring Diagram for 3.5 - 5 Ton Models
Equipped With CoreSense
TM
Diagnostic
Module ........................................................ 16
Figure 10. Wiring Diagram for 3.5 - 5 Ton Models
NOT Equipped With CoreSense TM
Diagnostic Module .................................... 17
Figure 11. Wiring Diagram for 3.5 - 5 Ton Models
Equipped with Low Pressure Switch ........ 18
INSTALLATION / PERFORMANCE CHECKLIST 20
IMPORTANT
It is your responsibility to know this product better than your customer. This includes being able to install the product
according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for
the life of the product. Safety should always be the deciding factor when installing this product and using common
sense plays an important role as well. Pay attention to all safety warnings and any other special notes highlighted
in the manual. Improper installation of the furnace or failure to follow safety warnings could result in serious injury,
death, or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the proper installation of
this appliance. Some local codes require licensed installation/service personnel for this type of equipment. Please
read all instructions carefully before starting the installation. Return these instructions to the customer’s package
for future reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
INSTALLATION INSTRUCTIONS
IMPORTANT SAFETY INFORMATION ............... 2
HEAT PUMP INSTALLATION .............................. 3
General Information ..................................................... 3
Before You Install the Heat Pump ................................ 3
Locating the Heat Pump .............................................. 3
Packaging Removal ..................................................... 3
Ground Level ............................................................... 3
Rooftop ........................................................................ 3
Connecting Refrigerant Tubing Between the Indoor
& Outdoor Unit ............................................................. 4
Outdoor Orifice Removal & Installation ........................ 4
ELECTRICAL WIRING ......................................... 5
Pre-Electrical Checklist ................................................ 5
Line Voltage ................................................................. 5
Grounding .................................................................... 6
Thermostat / Low Voltage Connections ....................... 6
CoreSense
TM Diagnostics Module................................ 6
Compressor Protection .............................................. 7
Resetting Alert Codes ................................................ 7
START UP & ADJUSTMENTS ............................ 7
Pre-Start Check List ..................................................... 7
Start-Up Procedures .................................................... 7
Air Circulation - Indoor Blower ..................................... 7
Short Cycle Protection ................................................. 7
System Cooling ............................................................ 8
System Heating ............................................................ 8
Defrost Control Board Test Pins .................................. 8
HEAT PUMP MAINTENANCE ............................. 9