AQUA PLUS indirect-fired water heaters — Product Manual

Boiler-side wiring and controls

Electrical shock hazard — Can cause severe personal injury, death or substantial property damage. Disconnect power before installing and / or servicing.

Wiring requirements

1.All wiring must be a minimum of 18 gauge and installed in accordance with:

•U.S.A. — National Electrical Code and any other national, state or local code requirements having jurisdiction.

•Canada — CSA C22.1 Canadian Electrical Code Part 1 and any other national, provincial and local code requirements having jurisdiction.

2.If original wire as supplied with appliance must be replaced, Type 90° C or its equivalent must be used.

3.Refer to control component instructions packed with boiler for ap- plication information.

4.An optional service switch may be installed in water heater electri- cal circuit. This switch would only shut off the water heater, not the home heating system. Do not shut off water heater if there is a chance of freezing.

5.All electrical contacts are shown with no power applied — off-the- shelf condition.

Circulators

1. Size priority relay for total amp draw of all circulators.

Zone Valves

1. Size transformer for maximum load of all zone valves.

Wiring to the water heater

1.Field connections to the water heater thermostat are for 24 VAC only, connecting to the two-pole terminal block shown in Figure 17.

Wiring options

1.This manual shows wiring only for use of Weil-McLain WMCR Cir- culator Zone Controller or Weil-McLain WMZV Zone Valve Zone Controller.

2.Other wiring methods may be acceptable and are left to the installer.

Use domestic priority

1.When possible, set controls to provide domestic priority — that is, on a call for domestic water the control switches from space heating to DHW only.

2.Domestic priority ensures the fastest possible re- sponse to the DHW call for heat.

3.The smaller the water heater, the greater the need for rapid response.

Figure 17 Inspection hatch assembly (hatch cover shown transparent)

1Temperature adjustment knob

2Inspection plate (handhole)

3Factory wires from thermostat to field wiring terminal block

4Field wiring terminal block

5M8 hex nut

6Inspection plate bracket

20

Part number GL-E223-ADOC 0311

Page 19 Page 21
Page 20
Image 20
Weil-McLain GL-E223-ADOC 0311 manual Boiler-side wiring and controls
Page 19 Page 21

GL-E223-ADOC 0311 specifications

The Weil-McLain GL-E223-ADOC 0311 is a notable addition to the lineup of high-efficiency cast iron boilers designed for both residential and commercial applications. This model stands out due to its focus on reliability, longevity, and energy efficiency, making it an ideal solution for those seeking effective heating solutions.

A key feature of the GL-E223 model is its durable cast iron construction. The cast iron heat exchanger not only enhances the boiler's overall resilience but also improves its thermal efficiency. This characteristic ensures the boiler can withstand the stress of continuous operation while providing consistent heating performance year after year.

The GL-E223-ADOC 0311 employs advanced burner technology, which optimizes combustion efficiency, reducing fuel consumption. With its ability to modulate based on the heating demand, the boiler adjusts its output to ensure it runs at peak efficiency, minimizing energy waste. This feature is particularly beneficial in terms of energy savings and reducing operational costs over time.

In terms of sizing, the Weil-McLain GL-E223 model is engineered to provide adequate heating for a wide range of applications. Its output capacity is meticulously designed to accommodate residential heating requirements while being robust enough for light commercial usage. The controls and monitoring systems integrated into this boiler allow for easy adjustments and improved system management.

One significant characteristic of this model is its built-in features for enhanced safety and convenience. The boiler includes safety controls that prevent overheating, as well as an easy-access inspection and cleaning configuration that extends the life of the unit and eases maintenance efforts.

Furthermore, the GL-E223-ADOC 0311 is designed to be compatible with a range of hydronic heating systems. This adaptability allows for seamless integration into existing infrastructure or new installations, allowing homeowners and businesses the potential for improved heating solutions without extensive modifications.

Overall, the Weil-McLain GL-E223-ADOC 0311 encompasses advanced engineering with its cast iron construction, efficient burner technology, and user-friendly features that ensure reliability and efficiency. Whether for new installations or upgrades, this boiler is a solid choice for efficient heating solutions, resonating well with those prioritizing energy conservation and long-term performance.
Top Page Image Contents