User Guide

10
6. Appliance Control Display
Adjustments
Description
Parameters
(Flashing)
Factory Settings
LED
(Flashing)
Installation type
0
186ºF [86ºC]
140ºF [60ºC]
0=Combi (Heat and DHW)
2=DHW only
3=Heating only
CH pump continuous
0
0=Intermittent, pump on during heat and post purge
1=Pump continously, active except during DHW call or
if outside temperature is above parameter 7 with the
outdoor sensor installed - Warm Weather Shut Down.
1=Heating + SMART/COMFORT I.F.W.H.
CH Minimum Boiler Temperature
86ºF [30ºC]
Adjustment range 60°F to 140°F [16ºC to 60ºC]
CH Reset Curve Coldest Day
0ºF [-18ºC]
Adjustment range -22°F to 50°F [-30ºC to 10ºC]
CH Reset Curve Warmest Day
64 ºF [18ºC]
Adjustment range 60°F to 78°F [16ºC to 26ºC]
CH post pump
1
Adjustment range 0 to 15 minutes
Not applicable
0
Adjustment range 0 to 15 minutes
CH Anti cycle time
The CH anti cycle time starts when the burner shuts down during a CH call due to boiler water reaching the boiler set point temperature plus a
6ºF [3ºC] differential. The CH circulator will continue to operate while the burner is blocked.
0
Minimum off time during CH operation
Adjustable from 0 to 15 minutes
1
2
5
6
7
8
o
P
Main Display
Operating
Display
CH Maximum Boiler Temperature
Not applicable
Adjustment range 86ºF to 194ºF [30ºC to 90ºC]
Adjustment range 104ºF to 149ºF [40ºC to 65ºC]
1
1
For installations with an optional ACV- Triangle Tube SMART/COMFORT Indirect Fired Water Heater (I.F.W.H.) piped off the CHALLENGER, similar
to Figures 7 and 8 on page 14, parameter 1 should be set to 1. The I.F.W.H. aquastat should be wired to CHALLENGER’s X4-5 and X4-6 terminals,
see Figure 12, page 19. The I.F.W.H. circulator should be wired using the CHALLENGER’s 120 V terminals 4 (line), 5 (neutral) and 6 (ground).
During a DHW call for heat on terminals X4-5 and X4-6, only the DHW circulator will operate and the boiler’s target supply water temperature will
change to 186°F [86°C].
2
The DHW post pump function only applies when parameter 1 is set to 1 Heating & SMART/COMFORT I.F.W.H. and only occurs if no CH
call for heat is present.
3
2
DHW post pump
1
Adjustment range 0 to 15 minutes
9
3
DHW Flow Device Selection 0 for all Solo Boilers
P.0