Nordic AH4P Series, Service Manual

Page: 2 / 30

5-Jul-2022 Page 2 002596MAN-01
AHW—65—VSP—1—SDETV—xx
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 system, ensure all power sources
are DISCONNECTED. Electrical shock can cause serious personal injury or death.
CAUTION:
Safety glasses and work gloves should be worn at all times whenever a unit is serviced.
A fire extinguisher and proper ventilation should be present whenever brazing is performed.
APPLICATION TABLE
MODEL
CONTROL
METHOD
VOLTAGE ORIENTATION REVISIONS
AHW-65
-
0
1
T V
S H
02
AHW-65 VSP
0
1
T V
S H
02
AH4P-65
-
0
1
T V
S H
02
AH4P-65 VSP
0
1
T V
S H
02
This manual applies only to the models and revisions listed in this table.
AIR COIL /
BLOWER
S D E
S D E
S D E
S D E
SAFETY PRECAUTIONS
Model Nomenclature
Series:
AHW = 2-pipe hydronic air handler
AH4P = 4-pipe hydronic air handler
Nominal Size:
65 = 5 Ton
Voltage Code:
0 = 115-1-60
1 = 208/230-1-60
Air Coil:
S = standard (non-coated)
K = e-coated
Blower Type:
D = Direct Drive
Blower Motor:
E = ECM (constant airflow)
Air Outlet Orientation
T = Top
S = Side
Cabinet Orientation
V = Vertical
H = Horizontal
Revision:
01, 02 etc.
Control Method:
(identifier not present) = 24VAC signals
VSP = 0-10VDC from external controller