Lochinvar WATER HEATERS BOILER SYSTEM , ELECTRICAL CONNECTIONS , WATER TEMPERATURE ADJUSTMENT

BOILER SYSTEM

1. On new boiler installations, do not pu rge the boiler or space heating system through the water heate r.

During any boiler or space heating system flushing, cleaning, or purging, the water heater should be

isolated to avoid possible attack on the coil by chemical additives.

2. Purge air from boiler/water heater piping.

3. Check system for leaks. Repair as necessary .

Install electric wiring in accordance with National Electric Code or the Canadian Electrical Code and local

regulations. See the boiler’s installation manual for wiring diagrams. The Indirect is equipped with an

adjustable temperature control. Once electrical connections are complete, secure the control cover back

in place. AT NO TIME SHOULD WATER HEATER OPERA TION TAKE PLACE WITHOUT THE COVER

ON THE CONTROL.

INSTALLING THEROMSTAT WIRING

1. Remove (4) screws from cover to remove front control panel.

2. Feed 24 volt wire from boiler control through the openin g on the top pan labeled

“thermostat connection. Install female ¼” connectors on the wiring and connect to

the (2) two ¼” spade terminals on the thermostat.

3. Make sure all wiring is safely inside the junction box and reinstall the front

control panel cover.

Positively assure all electrical connections are unpowered before a ttempting installation or service of

electrical components or connections of the water heater or building. Lock out all electrical boxes with

padlock once power is turned off.

When installed, the water heater must be electrically grounded in accordance with local codes or, in the

absence of local codes, with the National Electrical Code, ANSI/NFPA 70, and /or the CSA C22.1 Electric

Code. Failure to properly wire electrical connection s to the water heater may result in serious physical

harm. Electrical power may be from more than one so urce. Make sure all power is off before attempting

any electrical work.

This water heater can deliv er scalding tempera ture water at any faucet in the system. Be careful

whenever using hot water to avoid scalding injury. By setting the thermostat on this water heater

to obtain an increased water temperature, you may create the potential for scald injury. To protect

against injury, you should install an ASSE approved mixing valve (a device to limit the

temperature of water to protect against scald injury via mixing hot and cold water supply) in the

water system. This valve will reduce point of discharge temperature in branch supply lines. Such

valves are available from the manufacturer of this water heater or a local plumbing supplier.

Please consult with a plumbing professional.

Figure 3.