Nortek JT6BF Series Installation Instructions Manual

Split SyStEm hEat pump With micRochannEl coilS
inStallation inStRuctionS
t6BF - 024K, 030K, 036K, 042K, & 048K (2, 2.5, 3, 3.5, & 4 ton) SERiES
SinglE StagE, SinglE phaSE modElS
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
StaRt up & adJuStmEntS ......................................... 7
Pre-Start Check List ........................................................ 7
Start-Up Procedures ........................................................ 7
Operating Temperatures ................................................ 7
Air Circulation - Indoor Blower ......................................... 7
Short Cycle Protection ..................................................... 7
System Cooling ............................................................... 7
System Heating ............................................................... 7
Defrost Control Board Test Pins ...................................... 7
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.
hEat pump maintEnancE .......................................... 7
REFRigERant chaRging ............................................ 8
Charging the Unit in AC Mode ......................................... 8
Application Notes & Charging Charts
(Cooling Mode Only) ....................................................... 9
Figure 5. Charging Chart for 2 Ton Models .................... 9
Figure 6. Charging Chart for 2.5 Ton Models ................. 10
Figure 7. Charging Chart for 3 Ton Models .................... 10
Figure 8. Charging Chart for 3.5 Ton Models ................. 11
Figure 9. Charging Chart for 4 Ton Models .................... 11
Application Notes & Heat Mode Verification Tables
(Heat Mode Only) ............................................................ 12
Table 5. Verification Table for 2 Ton Models ................... 13
Table 6. Verification Table for 2.5 Ton Models ................ 13
Table 7. Verification Table for 3 Ton Models ................... 13
Table 8. Verification Table for 3.5 Ton Models ................ 14
Table 9. Verification Table for 4 Ton Models ................... 14
WiRing diagRamS ......................................................... 15
Figure 10. W.D. for 2 & 2.5 Ton Models With PSC Motor 15
Figure 11. W.D. for 3 Ton Models ................................... 16
Figure 12. W.D. for 3.5 & 4 Ton Models .......................... 17
inStallation chEcK liSt .......................................... 20
REplacEmEnt paRtS ................................................... 20
impoRtant
attEntion inStallERS:
16 SEER