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Heat Controller, Inc. INSTALLATION INSTRUCTIONS HDG Series Air Handler
2
These instructions are intended as an aid to qualied licensed service personnel for proper
installation, adjustment and operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these instruction may result in improper
installation,adjustment, service or maintenance possibly resulting in re, electrical shock,
property damage, personal injury or death.
H D G 18 F B - 1 A
H = DX Air Handler
A = Hydronic Air Handler
F = Front Return
Design Series
R-410A Refrigerant
18 = 18,000 BTUH
24 = 24,000 BTUH
30 = 30,000 BTUH
36 = 36,000 BTUH
42 = 42,000 BTUH
48 = 48,000 BTUH
60 = 60,000 BTUH
F = Flowrater (Piston)
T = TXV
V = TXV w/ ECM Drive
Condenser/Heat Pump Matching Guide:
H = Heat Pump
C = Air Conditioner
B = Both A/C & H/P use
1 = 208/230V 1 Phase 60Hz
2 = 208/230V 3 Phase 60Hz
Warning
1.0 Nomenclature
A = Revision
Code
NOTE: Not all model congurations are available. The nomenclature exists for future product line development. Consult
your local distributor or Heat Controller’s customer service department regarding available options.