ACH550 Installation, Operation and Maintenance Manual 83
ACH550-PCR/PDR
WARNING! Check the motor and motor wiring insulation before connecting the
ACH550 to line power. Follow the procedure on page 12. Before proceeding with the
insulation resistance measurements, check that the ACH550 is disconnected from
incoming line power. Failure to disconnect line power could result in death or serious
injury.
Note: For the remainder of the wiring (motor and control wiring) refer to page 7.
Input
Power
UL Type / NEMA 3R
Enclosures
RHTR Temperature
HI / LO Jumper (X1)
Heater ON
Temperature
Heater OFF
Temperature
Default Setting
(X1 jumper in LO position)
14.4 °C
58 °F
21.4 °C
70.5 °F
Alternate Setting
(X1 jumper in HI position)
17.8 °C
64 °F
24.7 °C
76.5 °C
The alternate (HI) setting further reduces the likelihood
of condensate in high humidity environments.
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