ECR Argo ARH-1 Installation Manual And Operating Instructions page 12

WIRING DIAGRAM APPLICATIONS
ARH-2 TWO ZONE HYDRO-AIR
CONTROL INSTRUCTION
(1 AIR HANDLER AND 1 PRIORITY ZONE)
Note: Zone 1 R & C
terminals must be con-
nected and energized
for board to function.
* - IF USED. IF NOT,
JUMPER MUST BE INSTALLED.
12
Note:
Connection
for 2 Speed
Fan (Remove
Jumper)