Weil-McLain Ultra Electric Water Heater Instruction Manual Supplement
Indirect-fired water heaters plus & ultra plus water heaters with ultra gas-fired water boilers
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Also See for Ultra Electric Water Heater:
- Installation and start-up manual (113 pages) ,
- Manual (108 pages) ,
- Manual addendum (28 pages)
Table of Contents
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PLUS
PLUS
PLUS
PLUS
PLUS
Indirect-Fired Water Heaters
Instruction Manual Supplement
PLUS &
This manual must only be used by a qualified heating installer/service technician.
Read all instructions, including the Boiler Manual and other supplements, before
installing. Install PLUS or Ultra PLUS indirect-fired water heater as explained in
the PLUS Line Manual. Install Ultra boiler as explained in the Ultra Boiler Manual.
Perform steps in the order given. Failure to comply could result in severe personal
injury, death or substantial property damage.
L I N E
L I N E
L I N E
L I N E
L I N E
PLUS water heaters with
Gas-fired Water Boilers
with
Part No. IWHA016A/1103
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Table of Contents
Related Manuals for Weil-McLain Ultra Electric Water Heater
Summary of Contents for Weil-McLain Ultra Electric Water Heater
- Page 1 PLUS PLUS PLUS PLUS PLUS Indirect-Fired Water Heaters Instruction Manual Supplement PLUS & PLUS water heaters with Gas-fired Water Boilers This manual must only be used by a qualified heating installer/service technician. Read all instructions, including the Boiler Manual and other supplements, before installing.
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Page 2: Table Of Contents
PLUS Line Instruction Manual Supplement PLUS & Contents Hazard definitions ... 2 Please read before proceeding ... 2 1. Install system water piping ... 3 2. Install boiler-to-water heater piping ... 6 3. Field wiring ... 8 4. Start-up ... 11 Please read before proceeding Installer Read all instructions before installing. -
Page 3: Install System Water Piping
Ultra boiler, for the most efficient and reliable operation of the boiler and the heating system. For other piping methods, consult your local Weil-McLain representative or refer to separate Ultra boiler piping guides. Wall-mounted boilers — Piping can exit bottom of boiler enclosure. -
Page 4: Zoning With Zone Valves
PLUS Line Instruction Manual Supplement PLUS & Install system water piping Zoning with zone valves 1. Connect boiler to system as shown in Figure 2 when zone valve zoning. The primary/secondary piping shown ensures the boiler loop will have sufficient flow. It also avoids applying the high head of the boiler circulator to the zone valves. -
Page 5: Zoning With Circulators
PLUS Line Instruction Manual Supplement PLUS & Install system water piping Zoning with circulators 1. Connect boiler to system as shown in Figure 3 when circulator zoning. The boiler circulator cannot be used for a zone. It must supply only the boiler loop. -
Page 6: Install Boiler-To-Water Heater Piping
PLUS Line Instruction Manual Supplement PLUS & Install boiler-to-water heater piping Combined space heating/water heating applications 1. Figure 4 shows recommended piping between Ultra Boiler and PLUS water heater. All show direct connection of the water heater piping to the boiler because the boiler circulator shuts down during water heater operation. - Page 7 PLUS Line Instruction Manual Supplement PLUS & Install boiler-to-water heater piping Table 1 Combined space heating/water heating applications (see Notes) Table 2 Dedicated water-heating only systems (using circulator supplied with boiler) (see Notes) Notes Tables 1 and 2 1. First hour ratings in Tables 1 and 2 are based on: •...
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Page 8: Field Wiring
PLUS Line Instruction Manual Supplement PLUS & Field wiring ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death. - Page 9 PLUS Line Instruction Manual Supplement PLUS & Field wiring Wiring a system circulator 1. For combined systems, to activate a system circulator when the Boiler circulator operates, wire as shown at bottom of Figure 7, page 8. 2. You must install a relay as shown. DO NOT wire in parallel with the Boiler circulator.
- Page 10 PLUS Line Instruction Manual Supplement PLUS & Field wiring Figure 9 Low voltage field wiring connections Summer/winter switch (item 7) — Install a summer/winter switch, if desired, to disable the boiler (space heating) circulator during non-heating months. Connect switch across the outdoor sensor terminals.
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Page 11: Start-Up
PLUS Line Instruction Manual Supplement PLUS & Start-up Follow Boiler Manual procedures 1. Follow all procedures in the boiler manual to start up and verify operation of the boiler. Set space heating operation Verify space heating mode 1. Press the “Mode” button until the display shows “Para.”... -
Page 12: Replace Boiler Jacket Front Door
PLUS Line Instruction Manual Supplement PLUS & Start-up [3180] (burner on, space heating) Once flame is proven and stable, the burner turns down to low fire for approximately 2 minutes. • After this low fire period, the burner is allowed to modulate.
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