20
ENVISION SERIES INSTALLATION MANUAL
OPERATION LOGIC
HEATING
COOLING
FAN ON
SL1 - IN
ON
SL2 - IN
ON
STG1
STG2
STG
EMERG
STG1
STG2
SINGLE SPEED UNITS
Compressor
On
On
On
Off
On
On
-
-
-
Rev Valve
Off
Off
Off
Off
On
On
-
-
-
Loop Pump
On
On
On
Off
On
On
-
On
-
DHW Pump
On
Off
Off
Off
On
On
-
-
-
Secondary 1- Out
On
On
On
Off
On
On
-
-
-
Emerg LED
Off
Off
Off
On
Off
Off
Off
-
-
T-Stat Signal
Y1
Y1, Y2
Y1, Y2, W
W
Y1, O
Y1, Y2, O
G
-
-
DUAL CAPACITY UNITS
Compressor-Lo
On
Off
Off
Off
On
Off
-
-
-
Compressor-Hi
Off
On
On
Off
Off
On
-
-
-
Rev Valve
Off
Off
Off
Off
On
On
-
-
-
Loop Pump
On
On
On
Off
On
On
-
On
-
DHW Pump
On
On
Off
Off
On
On
-
-
-
Secondary 1- Out
On
On
On
Off
On
On
-
-
-
Secondary 2- Out
Off
On
On
Off
Off
On
-
-
-
Emerg LED
Off
Off
Off
On
Off
Off
-
-
-
T-Stat Signal
Y1
Y1, Y2
Y1, Y2, W
W
Y1, O
Y1, Y2, O
G
-
-
Operation Logic Data
