45
WHL-032 REV. 6.2.16
Figure 33
– Manual Power Switch and Boiler Plug Details
NOTICE
If the boiler display does not come ON, first check the plug. Then check the electrical panel circuit breaker and reset it if necessary. If
the circuit breaker trips again, do not reset. Disconnect the plug and have a qualified technician diagnose the problem.
C. DIP SWITCHES
There is one set of DIP switches. The boiler
is default set at the factory to operate on Natural Gas with a 3” vent.
Figure 34
– Factory Default Dip Switch Detail
DIP SWITCH GROUP
DIP SWITCH
OFF
ON
1 - 3
NOT USED
NOT USED
4
Vent Size
2
”
3
”
5
Gas Type
LP
NG
6
High Fire
Normal Operation
High Fire
7
Low Fire
Normal Operation
Low Fire
Table 18
– DIP Switches 4 - 7
SYSTEM CONTROL SETTINGS
MAXIMUM FLAME DETECTING VOLTAGE
2.4V
PRE-PURGE TIME (Tp)
Maximum 10 seconds, minimum 1 second
SAFETY TIME (IGNITING TIME) (Ts)
3.5 seconds
IGNITING INTERVAL TIME
20 seconds
POST-PURGE TIME (Tip)
3 minutes (1
st
: 1 minute, 2
nd
: 2 minute)
OVER-HEATING 1,2,3 PROTECTION DETECTION TIME
<3 seconds
PUMP 1 POST CIRCULATING TIME (T1pv)
1 minute
PUMP 2 POST CIRCULATING TIME (T2pv)
1 minute
HIGH AND LOW WATER LEVEL DETECTION TIME
<6 seconds
HIGH AND LOW WATER LEVEL RECOVERY TIME
<6 seconds
Table 19
– System Control Settings
