Operating instructions

52
Start-Up Procedures
Setting the Appliance Parameters
1. Press the “”button at the display panel
for approximately 2 to 3 seconds until main
display begins to flash.
2. Press the “”button repeatedly to scroll
through the list of parameters. The operating
display will show the parameter number
and main display will show the parameter
setting.
3. To modifiy a parameter press the or
buttons.
4. Press the “”button to scroll to the next
parameter to be changed.
5. After all parameters have been changed,
press the reset button to close the setting
menu and store the changes. The main dis-
play will go blank and a P will be displayed
in the operating display to let you know the
control was programmed.
If the reset button is not pressed within
30 seconds, the settings menu is automati-
cally closed and the changes are stored.
If the ON/OFF button is pressed prior
to the reset button, the settings menu
is closed and the changes are NOT
stored.
NOTICE
Adjustments
Description
Parameters
(Flashing)
Factory Settings
LED
(Flashing)
Installation type
0
186ºF [86ºC]
140ºF [60ºC]
0=Combi (Heat and DHW)
2=DHW only (no heating system required)
3=Heating only
CH pump continuous
0
0=Intermittent pump on for 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 I.F.W.H.
Min. supply temperature of the heat curve
86ºF [30ºC]
Adjustment range 60°F to 140°F [16ºC to 60ºC]
Min. outside temperature of the heat curve
0ºF [-18ºC]
Adjustment range -22°F to 50°F [-30ºC to 10ºC]
Max. outside temperature of the heat curve
64 ºF [18ºC]
Note:
Adjustment range 60°F to 78°F [16ºC to 26ºC]
CH pump post purge period
1
Adjustment range 0 to 15 minutes
Waiting time after a DHW demand before a
CH demand is answered
0
Adjustment range 0 to 15 minutes
Anti-cycling period during CH operation
The anti-cycling time starts when 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.
The waiting time starts at the end of the DHW call (no DHW flow - DHW flow switch contacts are open) and blocks the burner and CH
circulator. if DHW function is turned ON ( LED is lit above the DHW button) or ECO is ON ( LED is lit above DHW button)
than the burner will continue to fire for DHW until a minimum heat exchanger temperature is achieved. Burner and CH circulator will
continue to be blocked until the remaining waiting time ends. This feature only applies if parameter 1 is set to 0.
0
Minimal switch-off time in CH operation
Adjustable from 0 to 15 minutes
1
2
5
6
7
8
O
P
Main Display
Operating
Display
Boiler set point temperature
DHW (domestic) setpoint temperature
Adjustment range 86ºF to 194ºF [30ºC to 90ºC]
Adjustment range 104ºF to 149ºF [40ºC to 65ºC]
For installations with a ACV-Triangle Tube SMART Indirect Fired Water Heater (I.F.W.H.) piped off the primary loop, similar to figures
7 and 8 on page 20, parameter 1 should be set to 1. The SMART’s aquastat should be wired to CHALLENGER’S X4-5 and X4-6
electrical connectors, see Figure 16,page 34. The domestic I.F.W.H. circulator should be wired using the CHALLENGER’s 120 V
terminals 4 (line) 5 (neutral) and 6 (ground). During a domestic call for heat on terminals X4-5 and X4-6, only the domestic I.F.W.H.
circulator will operate and the boiler’s target supply water temperataure will shift to 186ºF [86ºC].
3
3
2
2
The DHW post pump function only applies when parameter 1 is set to a setting of 1 Heating & Smart I.F.W.H. and only occurs if no CH
call for heat is present
4
1
1
DHW post pump
1
Adjustment range 0 to 15 minutes
9
4