Start-Up, Rtu Open Controls; Fastener Torque Values - Carrier WeatherMaster 50HCQ04-12 Service And Maintenance Instructions

Single package rooftop heat pump/electric heat with puron (r-410a) refrigerant
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START-UP, RTU OPEN CONTROLS

NOTICE
SET-UP INSTRUCTIONS
Installation, wiring and troubleshooting information for the
RTU-OPEN Controller: "Controls, Start-up, Operation and
Troubleshooting Instructions," "RTU Open Installation and
Start-up Guide" and "RTU-Open Integration Guide". Have
a copy of these manuals available at unit start-up.

FASTENER TORQUE VALUES

Refer to Table 13.
FASTENER
Supply fan motor mounting
Supply fan motor adjustment plate
Motor pulley setscrew
Fan pulley setscrew
Blower wheel hub setscrew
Bearing locking collar setscrew
Compressor mounting bolts
Condenser fan motor mounting bolts
Condenser fan motor mounting bolts
Condenser fan hub setscrew
A04-06 Direct-Drive Motor mount arm
A04-06 Direct-Drive Fan wheel hub setscrew
A04-06 Direct-Drive Motor belly band bolt
Table 13 — Torque Values
120 ± 12 in.-lbs
120 ± 12 in.-lbs
72 ± 5 in.-lbs
72 ± 5 in.-lbs
72 ±5 in.-lbs
55 to60 in.-lbs
65 to75 in.-lbs
65 to75 in.-lbs
20 ± 2 in.-lbs
84 ± 12 in.-lbs
60 ± 5 in.-lbs
120 ± 12 in.-lbs
80 ± 5 in.-lbs
38
TORQUE
13.6 ± 1.4 Nm
13.6 ± 1.4 Nm
8.1 ± 0.6 Nm
8.1 ± 0.6 Nm
8.1 ±0.6 Nm
6.2 to 6.8 Nm
7.3 to 7.9 Nm
7.3 to 7.9 Nm
2.3 ± 0.2 Nm
9.5 ± 1.4 Nm
6.8 ± 0.5 Nm
13.6 ± 1.4 Nm
9.0 ± 0.6 Nm

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