Nortek T4BE 036 Series Installation Instructions Manual

Split SyStEm hEat pump With micRochannEl coilS
inStallation inStRuctionS
t4BE - 036, 048, & 060 (3, 4, & 5 ton) SERiES
thREE-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 ........................................................................ 5
Thermostat / Low Voltage Connections ........................... 5
Unbalanced 3-Phase Supply Voltage .............................. 6
StaRt up & adJuStmEntS ......................................... 7
Pre-Start Check List ......................................................... 7
Start-Up Procedures ........................................................ 7
Operating Temperatures ............................................... 7
Air Circulation - Indoor Blower ......................................... 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.
Short Cycle Protection ..................................................... 7
System Cooling ................................................................ 7
System Heating ................................................................ 7
Defrost Control Board Test Pins ...................................... 7
hEat pump maintEnancE .......................................... 7
REFRigERant chaRging ............................................ 8
Charging the Unit in AC Mode ......................................... 8
Application Notes & Charging Charts .............................. 9
Figure 5. Charging Chart for 3 Ton Models ................... 9
Figure 6. Charging Chart for 4 Ton Models ................... 10
Figure 7. Charging Chart for 5 Ton Models ................... 10
Application Notes & Heat Mode Verification Tables
(Heat Mode Only) ............................................................. 11
Table 5. Verification Table for 3 Ton Models ................. 12
Table 6. Verification Table for 4 Ton Models ................. 12
Table 7. Verification Table for 5 Ton Models ................. 12
WiRing diagRamS ......................................................... 13
Figure 8. W.D. for 3,4, & 5 Ton (208/230V) Models ...... 13
Figure 9. W.D. for 3,4, & 5 Ton (460V) Models ............. 14
inStallation / pERFoRmancE chEcK liSt .......... 16
REplacEmEnt paRtS .................................................. 16
impoRtant
attEntion inStallERS:
14 SEER