Weil-McLain SERIES 7 PFG User Manual
Gas-fired
water boiler
PFG
Series 7
Control Supplement
Universal Control Systems (UCS)
To complete boiler installation,
follow:
• General Information 2
• Boiler Wiring 3-5
• Vent Damper Installation 6
• Check-out Procedure 7
• Operating Instructions 8-10
For additional help, see:
• Troubleshooting 11-15
• Parts List 16
Controls must only be installed by and Control Supplement used by a qualified
installer/service technician. Read all instructions before installing. Failure to
follow all instructions in proper order can cause severe personal injury, death
or substantial property damage.
Part No. 550-110-643/0605
PFG SerieS 7 GaS-Fired Water Boiler – UniverSal Control SyStemS
GENERAL INFORMATION:
This system is used on natural gas-red boilers with or without
dampers as shipped from the factory.
This system is not offered for retrot,
or conver sion fr om sta nding pilot
systems. Any attempt to apply the system
components to boilers shipped for use
with a different control system will not
be covered under boiler warranty and
can cause severe personal injury, death
or substantial property damage.
IMPORTANT: When calling or writing about the boiler,
PLEASE GIVE THE MODEL listed on the boiler rating label
AND THE CP NUMBER found next to the rating label.
The following dened terms are used throughout this manual.
They bring attention to the presence of hazards of various risk
levels, or to important information concerning the life of the
product.
indicates presence of hazard which will
cause severe personal injury, death or
substantial property damage if ignored.
indicates presence of hazard which can
cause severe personal injury, death or
substantial property damage if ignored.
indicates presence of hazard which will
or can cause minor personal injury or
property damage if ignored.
indicates special instructions on
installation, operation, or maintenance
which are important but not related to
personal injury hazards.
2
Part Number 550-110-643/0605
PFG SerieS 7 GaS-Fired Water Boiler – UniverSal Control SyStemS
Section A: Installation
1. Bring supply wiring to boiler. Must be 14 ga. or heavier. See pages listed below each Figure for appropriate wiring diagram.
2. Proceed to page 6.
PFG 5 Boiler
Figure 1,
see page 4
PFG 6 thru 8 Boilers
Figure 2,
see page 5
Part Number 550-110-643/0605
3
PFG SerieS 7 GaS-Fired Water Boiler – UniverSal Control SyStemS
PFG-5
4
Part Number 550-110-643/0605
PFG SerieS 7 GaS-Fired Water Boiler – UniverSal Control SyStemS
PFG 6 thru 8
Part Number 550-110-643/0605
5
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