Nordic R-45, Installation And Service Manual, Page: 2 / 91

1-Nov-2021 Page 2 001200MAN-09
WARNING:
Ensure all access panels are in place and properly secured before applying power to the unit.
Failure to do so may cause electrical shock.
WARNING:
Before performing service or maintenance on the heat pump system, ensure all power sources
are DISCONNECTED. Electrical shock can cause serious personal injury or death.
WARNING:
Heat pump systems contain refrigerant under high pressure and as such can be hazardous to
work on. Only qualified service personnel should install, repair, or service the heat pump.
CAUTION:
Safety glasses and work gloves should be worn at all times whenever a heat pump is serviced.
A fire extinguisher and proper ventilation should be present whenever brazing is performed.
CAUTION:
Venting refrigerant to atmosphere is illegal. A proper refrigerant recovery system must be
employed whenever repairs require removal of refrigerant from the heat pump.
Series:
R = Reversing Liquid to Air (vertical)
RH = Reversing Liquid to Air (horiz.)
Nominal Size:
45 = 3 Ton
55 = 4 Ton
65 = 5 Ton
75 = 6 Ton
80 = 6.5 Ton
Functions:
H = heating
AC = active cooling
W = domestic hot water
Refrigerant:
P = R410a
Voltage Code:
1 = 208/230-1-60
2 = 208-3-60
3 = 265/277-1-60
4 = 460-3-60
6 = 220-1-50
7 = 380-3-50
Outdoor Loop Exchanger:
C = copper
Y = CuNi coil & piping
Z = CuNi coil only
Air Coil:
S = standard (non-coated)
K = e-coated
Blower Type:
D = direct drive
Blower Motor:
E = ECM (constant airflow)
Air Return Orientation:
L = left return
R = right return
Air Outlet Orientation:
F = field configurable
(R: top or side)
(RH: end or side)
Revision:
01, 02 etc.
R—65—HACW—P—1T—C—SDERF—xx
Compressor:
S = 1 stage scroll
T = 2 stage scroll
SAFETY PRECAUTIONS
Model Nomenclature