Additional Information
Technical Data
Rated voltage:
230 VAC
Rated frequency:
60 Hz
Rated current:
2.5 A~
Boiler Model
Natural gas
CSA input
CSA output/DOE
heating capacity
*1
Net I=B=R rating
Propane gas
CSA input
CSA output/DOE
heating capacity
*1
Net I=B=R rating
Min. gas supply pressure
Natural gas
Propane gas
*2
Max. gas supply pressure
Natural gas
Propane gas
*3
Flue gas
Temperature (at boiler return
water temp. of 86 ºF/30 ºC)
– at rated full load
– at rated partial load
Temperature (at boiler water
return temp. of 140 ºF/60 ºC)
Max. natural gas flow rate
Max. propane gas flow rate
Burner orifices diameter
Natural gas
Propane gas
*1
Net I=B=R rating based on piping and pick-up allowance of 1.15.
*2
If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator must be installed upstream of the
heating system.
*3
Measured flue gas temperature with combustion air temperature of 68 °F/20 °C.
46
Max. ambient
temperature
H at operation:
H when storing
and transporting: –4 to +149 ºF
Setting of adjustable
electronic high limit 167 ºF
Model No.
MBH
kW
MBH
kW
MBH
MBH
kW
MBH
kW
MBH
"w.c.
"w.c.
"w.c.
"w.c.
ºF/ºC
ºF/ºC
ºF/ºC
3
ft
/h
3
m
/h
3
ft
/h
3
m
/h
Ø mm
Ø mm
Setting of fixed high limit
safety cut-out:
32 to 104 ºF
(fixed setting)
–0 to +40 ºC
Main fuse:
–20 to +65 ºC
Power consumption
H Burner:
H Control unit:
75 ºC
Always ensure the correct orifices
are installed in the boiler. See table
below.
The boiler must achieve the output
stated on the rating plate. Do not
overfire the boiler.
WB2 11-44
55-172
16-50
49-153
14-44
133
55-155
16-45
49-138
14-40
120
4
11
14
14
95/35
91/33
149/65
172
4.87
62
1.75
(E44) 8.40
(P44) 6.10
210 ºF
99 ºC
max. 16 A
max. 105 W
max. 10 VA
WARNING
Standard heating boiler
WB2 15-60
80-230
23-67
71-205
21-60
37-112
11-33
33-101
10-30
104/40
95/35
158/70
(E60) 9.00
(P60) 6.70
178
166
7
11
14
14
230
6.51
85.6
2.42