Display Menu Guide
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FTV I&O Manual
66
Setting
Description
Factory
Setting
2-03
CH mode
– determines the operational mode for central heating:
0 – no outdoor sensor is needed; central heat demand is generated by a thermostat call to
boiler terminals 7 and 8. Boiler operates to setting 2-01; there is no outdoor reset.
1 – outdoor sensor is needed; central heat demand is generated by a thermostat call to boiler
terminals 7 and 8. Boiler operates in-between settings 2-01 and 2-05 depending on OD temp.
2 – outdoor sensor is needed; central heat demand is generated when the OD temp is below
the Warm weather shutdown setting (2-04). Boiler operates in-between settings 2-01 and 2-
05 depending on OD temp. An optional “nighttime setback” or “time of day” switch can be
applied to terminals 7 and 8; contact closure initiates “Night Setback Mode”, where the boiler
target temperature is reduced by the Night Setback Temperature setting (2-33).
3 – same as 0
4 – setpoint from external analog input (0-10VDC); 2 volts for minimum CH setpoint, 10
volts for maximum CH setpoint. Use of an addition interface board through Argus Link is
required.
5 – modulation from external analog input (0-10VDC); 2 volts for minimum modulation, 10
volts for maximum modulation. Use of an addition interface board through Argus Link is
required.
1
2-04
Warm weather shutdown
– inhibits central heat operation when the outdoor temperature reading goes
above this setting. Range = 35 to 100
⁰
F
100
⁰
F
2-05
CH setpoint (at OD = 70
⁰
F)
– establishes the boiler operating temperature during central heat
demands when the outdoor temperature is 70
⁰
F or greater. Set to the minimum desired boiler
temperature for the application, e.g. 70-90
⁰
F for infloor; 100-120
⁰
F for cast-iron; 110-140
⁰
F for
baseboard. Range = 60 to 140
⁰
F
95
⁰
F
2-06
Temperature boos
t – determines the increase in boiler target temperature for every 15 minutes of
continuous central heat demand. Only applicable when an outdoor sensor is used (i.e. CH modes 1 &
2). Target temperature will not exceed CH setpoint setting 2-01. Range = 0 to 36
⁰
F
NOTICE:
Boost feature does not function when the boiler is operating as part of a cascade.
0
⁰
F
2-07
DHW setpoint
– establishes: a) tank temperature setting for DHW mode 1 [e.g. 130-140
⁰
F], b) boiler
outlet setpoint for DHW mode 2 [e.g. 170-190
⁰
F] or c) DHW temperature for FTV-Combi [e.g. 120-
140
⁰
F]. Range = 104-190
⁰
F
136
⁰
F
2-08
DHW mode
– determines the operational mode for DHW; for non-combi models choose between
options 0, 1 and 2; for FTV-Combi models choose between options 0 and 5:
0 – off; boiler will not attempt to heat DHW in any way.
1 – tank sensor, NTI P/N: 84632, is installed in the indirect water heater and wired to boiler
terminals 3 and 6. Tank temperature is adjusted via setting 2-07.
2 – tank thermostat is installed in the indirect water heater and wired to boiler terminals 3 and
6. Setting 2-07 determines boiler outlet temperature during DHW demands. (Default setting
for FTV110-190)
3 & 4 – settings are not applicable.
5 – DHW mode setting for FTV-Combi models. Setting 2-07 determines DHW outlet
temperature.
2 or 5
2-09
DHW priority timer
– a timer that accumulates during a simultaneous DHW and CH demand. Each
time the timer exceeds the “DHW priority timer” setting, the priority switches from one demand to the
other (i.e. DHW to CH). Note: DHW is assigned priority first. Range = 1-240 minutes
60 min
2-10
Preheat mode
(only applicable to FTV-Combi models) – when set to ON, the preheat mode acts to
keep the boiler and internal DHW circuit warm, to reduce the time required for hot water to reach the
fixture, and helps limit the effect of the phenomena known as “cold water sandwich”. When set to
OFF, the boiler is not preheated. Range = ON/OFF
ON
2-11
Appliance selection (type)
– indicates what boiler model the controller is configured to operate with:
16 = FTV110 (NG)
17 = FTV150
20 = FTV150C
21 = FTV190C
18 = FTV190
22 = FTV110 (LP)
19 = FTV110C (NG)
23 = FTV110C (LP)
(See Section 17.0 for instruction on changing the appliance selection {type}).
16-23
