Weil-McLain WJB2 Boiler User Manual


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Webster – Model WJB
Part Number 550-142-022/0509
4
Notes
e) RM7800L, E110/EP170 flame safeguard control monitors the oil or gas burner flame with digital readout control system, provides pre-
purge and post-purge programming, provides switching necessary to allow firing rate motor to be driven to both low fire and high fire posi-
tion, prevents start-up if pre-ignition interlocks are open and has low fire start proving circuit. In the event pre-ignition interlock circuit or
running interlock circuit does not “prove”, system will lock out on safety. Ultraviolet sensitive electronic flame detector is standard with
infrared detector available.
14. Airflow safety switch is standard for all gas and combination gas/light oil units.
15. Burners will be completely assembled and wired (except gas train) and factory test-fired.
16. Burners listed by Underwriters Laboratories, Inc., state of Connecticut, Fire Marshal state of Massachusetts, city of New York MEA, and others.
17. Special controls can be provided to meet other code requirements not listed. Consult your local Weil-McLain distributor/agent or sales office.
18. Electric gas pilot is standard equipment on all gas and combination gas/light oil units and on oil units 1688R-1888.
Direct spark ignition is standard on light oil units 488R-1588. Direct spark ignition is optional on combination gas/ light oil units 488R-1588.
Consult your local Weil-McLain distributor/agent or sales offices.
19. Available for Low NOx applications. Consult your local Weil-McLain distributor/agent or sales offices.
Flame Safeguards Provided with Listed Control Systems by Code
GAS BURNERS
Boiler
model
number
UL FM CSD-1 IRI
OO LHO LHL MOD OO LHO LHL MOD OO LHO LHL MOD OO LHO LHL MOD
488R-488
RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897C RM7897C RM7897C RM7840L
588-988R
– – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897C RM7897C RM7840L
988-1888
– – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L
LIGHT BURNERS
Boiler
model
number
UL FM CSD-1 IRI
FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD
488R
R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G RM7897C RM7897C RM7897C RM7840L
488-588
R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G RM7897A RM7897A RM7897A RM7895A RM7897C RM7897C RM7897C RM7840L
688-988R
– – R8184G R8184G R8184G R8184G R8184G R8184G R8184G – – RM7897A RM7897A RM7895A – – RM7897C RM7897C RM7840L
988-1088R
– – R8184G R8184G R8184G R8184G R8184G R8184G RM7840L – – RM7897A RM7897A RM7895A – – RM7897C RM7897C RM7840L
1088-1888
– – RM7896C RM7896C RM7840L – – RM7896C RM7896C RM7840L – – RM7897C RM7896C RM7840L – – RM7896C RM7896C RM7840L
GAS/LIGHT OIL BURNERS
Boiler
model
number
UL FM CSD-1 IRI
OO/
FALFS
LHO LHL MOD
OO/
FALFS
LHO LHL MOD
OO/
FALFS
LHO LHL MOD
OO/
FALFS
LHO LHL MOD
488R-488
RM7897A RM7897A RM7897A RM7897A RM7897A RM7897ARM7897A RM7897A RM7897ARM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7840L
588-988R
– – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897ARM7897A RM7840L
988-1888
– – RM7897C RM7897C RM7840L
– –
RM7896C RM7896C RM7840L – – RM7896C RM7896C RM7840L – – RM7896CRM7896C RM7840L
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