Installation Guide | 5
User Interface
Symbols
Terminals
R
24VAC Hot
C
24VAC Common
W
Connects to Heat relay of aquastat
Y
Connects to Cool relay of aquastat
G1,G2,G3
Low, Med, High fan relays
TH, GND
not connected
DP
Drain pan
FZ
Freezestat
Symbols
Terminals
R
24VAC Hot
C
24VAC Common
W
Connects to Heat/Cool of aquastat
Y
Connects to Cool valve relay
G1,G2,G3
Low, Med, High fan relays
TH, GND
not connected
DP
Drain pan
FZ
Freezestat
(D) Alternate Method 1
2-pipe – AQUASTAT VERSION
(E) Alternate Method 2
2-pipe (Aux. Heat) – AQUASTAT VERSION
Mode / Menu
Accessing clock
Select Fan Speed/ Turn OFF System
Adjust settings
a multi functional key, to control the mode the thermostat is
running in (heat, cool, auto) and access intstaller settings.
