Table of Contents
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PER
Electric-Hydronic Boilers
Installation Instructions
Installer
Read all instructions before
installing. Follow all instructions in
proper order to prevent personal
injury or death.
•
Consider piping and installation when determining
boiler location.
•
Any claims for damage or shortage in shipment
must be filed immediately against the
transportation company by the consignee.
These Instructions must be used only by a qualified installer/service
technician. Read these instructions completely before beginning. Failure to
follow these instructions can cause severe personal injury, death or
substantial property damage.
When calling or writing about the boiler— Please have the boiler model
number from the boiler rating label and the CP number from the boiler
jacket. You may list the CP number in the space provided on the Installation
and service certificate found on page 9.
Series
User
•
This manual is for use only by
your qualified heating installer/
service technician.
•
We recommend regular service
by
a
qualified
technician, at least annually.
Part number 550-141-396/0801
3
service
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Table of Contents
Related Manuals for Weil-McLain PER 550-141-396/0801
Summary of Contents for Weil-McLain PER 550-141-396/0801
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Page 1: Installation Instructions
Electric-Hydronic Boilers Installation Instructions Installer Read all instructions before installing. Follow all instructions in proper order to prevent personal injury or death. • Consider piping and installation when determining boiler location. • Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee. -
Page 2: Please Read Before Proceeding
PER Series 3 Electric-Hydronic Boilers Installation Instructions Please read before proceeding Hazard Definitions The following defined terms are used throughout these Instructions to bring attention to the presence of hazards of various risk levels, or to important information concerning the life of the product. Indicates presence of hazards that will cause severe personal injury, death or substantial property damage. -
Page 3: General Instructions
PER Series 3 Electric-Hydronic Boilers Installation Instructions Pre-installation General instructions The Weil-McLain Model PER electric-hydronic boilers are assembled units designed for use in forced hot water heating systems. The suggested design temperature rise through the boiler is 20°F. The PER boiler is a complete package including the circulator and expansion tank. -
Page 4: Piping The Boiler
PER Series 3 Electric-Hydronic Boilers Installation Instructions Pre-installation Piping the boiler After the boiler is secured to the wall, attach the supply and return piping. Refer to Table 2 for minimum pipe sizes. Install manual shut-off valves in the supply and return lines to facilitate servicing the boiler. -
Page 5: Sequence Of Operation
PER Series 3 Electric-Hydronic Boilers Installation Instructions Sequence of operation Call for heat The thermostat contacts close, energizing the first contactor (2K), the circulator relay (1K), and the heater in the first thermal time delay (H1). Approximately 15 seconds later, the thermal delay contacts (1C) close energizing the electronic circuit inside the first electronic time delay (ED1). - Page 6 PER Series 3 Electric-Hydronic Boilers Installation Instructions Wiring Part number 550-141-396/0801...
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Page 7: Troubleshooting
PER Series 3 Electric-Hydronic Boilers Installation Instructions Troubleshooting This boiler contains fiberglass materials. Use care when handling these materials per instructions on page 11 of this manual. Failure to comply could result in severe personal injury. Symptom—No heat Check fuses. Power for the control circuit is supplied through the fuses for the heating element, and the circulator. -
Page 8: Operating Instructions
PER Series 3 Electric-Hydronic Boilers Installation Instructions Operating instructions Water treatment Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe damage to boiler will result, causing substantial property damage. Eliminate all leaks. Continual fresh makeup water will reduce boiler life. Minerals can build up in section, reducing heat transfer, overheating cast iron, and causing section failure. -
Page 9: Checkout Procedure
PER Series 3 Electric-Hydronic Boilers Installation Instructions Checkout procedure After filling and purging, start the boiler as follows: Turn the thermostat to its lowest setting so that there is no call for heat. Set the limit control as recommended in the Installation Instructions. Turn on the main electric switch to the boiler. - Page 10 PER Series 3 Electric-Hydronic Boilers Installation Instructions Maintenance This boiler contains fiberglass materials. Use care when handling these materials per instructions on page 11 of this manual. Failure to comply could result in severe personal injury. Draining and cleaning Do not drain the boiler during periods of shutdown unless the heating system is exposed to freezing temperatures.
- Page 11 PER Series 3 Electric-Hydronic Boilers Installation Instructions Handling fiberglass materials REMOVAL OF FIBERGLASS WOOL — OR — INSTALLATION OF FIBERGLASS WOOL, COMBUSTION CHAMBER LINING OR BASE PANELS: This product contains fiberglass jacket insulation and ceramic fiber materials in combustion chamber lining or base panels in gas fired products.
- Page 12 PER Series 3 Electric-Hydronic Boilers Installation Instructions Dimensions 6½" Incoming power 1¼" conduit 2¼" 19 " 1 16 Automatic air vent ¾" Relief valve 15 16 " 15 16 " 5" 1¼" Return 3 16 " 1¼" Supply " Combination pressure- temperature gauge 10"...
- Page 13 1. Provide manual shutoff valves in the system piping at the supply outlet and the return inlet so the boiler can be drained without draining the entire system. 2. For other than the standard voltages shown, consult Weil-McLain Application Engineering Department. 3. Copper wire (AWG-MCM). Consult national or local electrical code manuals for runs in excess of 50 feet. Do no use aluminum wire.
- Page 14 Failure to comply could result in severe personal injury. Item Description number Control tray Boiler casting with insulation Jacket door Jacket side and back panel Jacket top panel Weil-McLain Item Description part number number 428-800-000 Jacket element cover plate 318-806-200 Jacket bottom panel...
- Page 15 Temperature pressure gauge Element contactor, 240 volt, single phase Heating elements, 5KW, 240V, single phase Air vent Fill-Trol, 90˚ fill Circulator pump Universal circulator hardware kit, 1¼" Drain valve Part number 550-141-396/0801 Weil-McLain part number 562-850-089 512-050-013 590-850-020 510-350-061 510-350-219 511-950-275 510-350-211...
- Page 16 First Year-(All Residential & Commercial Cast Iron Boilers) Limited Warranty for Cast Iron Boilers: Weil-McLain warrants that its cast iron boilers are free from defects in material and workmanship for one year from the date of installation. If any parts are found to be defective in manufacture, Weil-McLain will provide replacement of such defective parts.