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Para.
Name
35
(1st
3-Way Valve
(see right)
digit)
35
0 to 9 (see
(2nd
CH type
digit)
V - pARAMETER REFERENCE TABLE continued
Range
Gascom
Boiler
Software
Display
0 to 2
0 to 2
0 to 9
right)
Boiler Display
Display Position
1st
2nd
3rd
4th
initial reading:
P
.
2
after 2 to 3 seconds:
digit
digit
Blank
Blank
1
17
Description
First digit (3-way valve):
• Control module readout: Initial reading -
P.35 (indicates Parameter 35) after 2 to 3
second, change the parameter setting:
Position 1,2 = blank
Position 3 = Parameter 35 first digit (3 way
valve or pump)
Position 4 = Parameter 35 second digit
(dHW type)
• DO NOT CHANGE Parameter 35 first
digit . 3 way valve operation is not currently
9
supported.
• 0 ( 3 way valve normally open) - Switch
to dHW from CH with normally open 3 way
valve
• 1 (hot water pump) - Use DHW circulator
in dHW mode
• 2 (3-way valve normally closed) - Switch
to dHW from CH with normally closed 3
way valve
Second digit (CH type):
• 0 (instant water heater with
dO nOt SeLeCt - instantaneous water
heater with sensor ( not currently sup-
ported)
• 1 (instant water heater without NTC3) -
dO nOt SeLeCt - instantaneous water
heater without sensor (not currently sup-
ported)
•
2
(storage
tank
dO nOt SeLeCt- Storage tank with sen-
sor (not currently supported)
• 3 (storage tank without NTC3) -
dO nOt SeLeCt - Storage tank with
aquastat
• 4 (instant water heater with NTC3 + anti-
condensing) -
dO nOt SeLeCt - instantaneous water
heater with sensor; anticondensate mode
(not currently supported)
•
5
(instantaneous
without ntC3 + anti condensing) -
dO nOt SeLeCt - instantaneous water
heater without sensor; anticondensate
mode (not currently supported)
• 6 (storage tank with NTC3 + anticon-
densing - dO nOt SeLeCt - Storage tank
with sensor; anticondensate mode (not
currently supported)
2
• 7 (storage tank without NTC3 + anticon-
densing) - dO nOt SeLeCt - Storage
tank with aquastat; anticondensate mode
(not currently supported)
• 8 (plate heater exchanger) - DO NOT SE-
LeCt - Plate heater exchanger (not cur-
rently supported)
•
9
(external
dO nOt SeLeCt - external heat request,
from RmCi (not currently supported)
NTC3) -
with
NTC3)
-
water
heater
heat
request)
-
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