Use and Care Manual

51
Primary Show Secondary Show
Description
Parameter Index Step 1 Step 2 Step 3 Default
4:Od
(This
param-
eter doesn’t
show if 2:TR
is Off)
Outdoor
Temp
A.HI
23~110°F
(-5~43°C)
-
O
70°F
(21°C)
The Combi Boiler will automatically use the Outdoor Tem-
perature Settings and the Heating Application to adjust
the set temperature of the unit for the most comfortable
and economical heating temperature.
•A.HI (Outdoor High Temperature Setting)
This should be set at the highest average outdoor
temperature in which the customer would like the heating
system to continue to heat the home.
•b.noH (Warm Weather Shutdown Temperature Setting)
- When ‘on’ the unit will go into energy saving mode and
automatically stop heating when the outdoor temperature
is 5°F (3°C) over the A.HI set point.
- When ‘oFF’ the unit will continue to heat at the lowest
temperature setting even if the outdoor temperature is
greater that A.HI set point.
•C.Lo (Outdoor Low Temperature Setting)
This should be set at the lowest average outdoor
temperature during the winter season. (not the lowest
possible outdoor temperature)
•When the Warm Weather Cutoff is on the will ash
on the control panel.
b.noH
on - O
oFF - -
C.Lo
-4~61°F
(-20~16°C)
-
O
20°F
(-6.5°C)
5:bs
(This
param-
eter doesn’t
show if 2:TR
is Off)
Boost
Timing
oFF - - O
The setting is to increase the set temperature of the unit
on cold start ups if the actual room temperature doesn’t
reach the thermostat set temperature quick enough, the
Boost time function will increase the set temperature of
the Combi Boiler 10°F (5.5°C) after the selected Boost
time setting has passed.
Example :
Room thermostat set at 72°F, Combi Boiler set temp at
140°F, and Boost time function set to 30 min. If the room
temperature does not reach 72°F within 30 min then the
Combi Boiler will increase it’s set temp from 140°F to
150°F
1~120 min - - -
6:Vt
Vent
Material
PVC - - O
Vent Material function is used to limit the maximum
exhaust temperature for the vent material used. For
safety reasons the Combi Boiler operation will stop if
the exhaust temperature exceeded maximum allowable
temperature for the venting material.
•PVC maximum exhaust temperature is 149°F (65°C)
•CPVC and PP/STS maximum exhaust temperature is
200°F (93°C)
CPVC - - -
7:EL
High
Elevation
0-2 - - O
Select an altitude range from the following four options
based on where the Combi Boiler is installed.
•0-2 : 0~1,999ft (0~609m)
•2-5 : 2,000~4,999ft (610~1,523m)
•5-8 : 5,000~7,999ft (1,524~2,438m)
•8-10 : 8,000~10,000ft (2,439~3,048m)
2-5 - - -
5-8 - - -
8-10 - - -
8:AH Air Handler
oFF - - O
This function needs to be turned ‘on’ if an Air Handler is
being used as a heating type.
•When heating side is running the fan and pump for the
Air Handler will be on.
•If the DWH side is running the fan and pump for the Air
Handler will be off.
•If this is not set to ‘on’ the Air Handler fan will be running
with no hot supply water from the Combi Boiler and blow
cold air into the home while the DHW side is running.
•When the Air Handle is operating, the will display on
the control panel.
on - - -