Installation Manual
Hydronic Air Handler Installaon and Operaon Manual   15 
Measurements: in. (mm) 
Hydronic Air Handler Models 
•  AH083CP 
•  AH083P 
•  AH084CP 
•  AH084P 
•  AH125CP 
•  AH125P 
•  AH166CP 
•  AH166P 
•  AH206CP 
•  AH206P 
A 
17.5 (445)  21.0 (533)  24.5 (622) 
B 
27.0 (686)  28.0 (711)  28.0 (711) 
C 
20.5 (521)  20.5 (521)  20.5 (521) 
D 
15.5 (394)  19.0 (483)  22.5 (572) 
E 
16.0 (406)  16.0 (406)  16.0 (406) 
F 
25.4 (645)  26.4 (671)  26.4 (671) 
G 
21.5 (546)  22.5 (572)  22.5 (572) 
H 
21.4 (544)  22.4 (569)  21.4 (543) 
I 
17.5 (445)  17.5 (445) 16.5 (419) 
            NOTE 
CP = Models with Internal 
Circulation Pump 
P = Models without Internal 
Circulation Pump 
1 
Line Voltage knockout is located at the specified height on the cabinet right side panel for models: AH083P/CP, 
AH084P/CP, AH125P/CP, AH166P/CP 
 Line Voltage knockout is located at the specified height on the cabinet left side panel for models: AH206P/CP 
2 
Low Voltage/Thermostat knockouts are also available at same location on cabinet left side.  
TOP 
D 
E 
TOP 
FRONT 
Water In 
Water Out 
2.8 
(71) 
B 
F 
G 
A 
Line Voltage
1
(120V Supply) 
Low Voltage/
Thermostat  
(24V Supply)
2
1.6 
(41) 
RIGHT 
16 
(406) 
RIGHT 
I 
(406) 
16 
H 
C 










