OFF
OFF
OFF
OFF
1
2
[2]
BYPASS POSITION
[2]
1. inlet valve to appliance is CLOSED.
2. outlet valve from appliance is CLOSED.
MAINTENANCE
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
1
1
2
2
[3]
[4]
MAINTENANCE POSITION
[3]
1. inlet valve to appliance is OPEN.
2. outlet valve from appliance is CLOSED.
CLOSED
POSITION
[4]
1.
inlet valve to appliance is
CLOSED
.
2.
outlet valve from appliance is
OPEN
.
[1]
1
2
3
SERVICE POSITION
[1]
1. bypass valve is CLOSED.
2. inlet valve to appliance is OPEN.
3. outlet valve from appliance is OPEN.
WITH 3-VALVE BYPASS SYSTEM (not included)
.
BYPASS POSITION
[2]
1. bypass valve is OPEN.
2. inlet valve to appliance is CLOSED.
3. outlet valve from appliance is CLOSED.
[2]
1
2
3
[3]
1
2
3
MAINTENANCE POSITION
[3]
1. bypass valve is OPEN.
2. inlet valve to appliance is OPEN.
3. outlet valve from appliance is CLOSED.
1
4