Pre-Delivery/Install Checklist

whl-648 Rev. 001 Rel. 000 Date 4.11.19

WARNING

This boiler is too heavy for one person to lift. It is highly recommended to install the boiler with two people. Use caution as to not drop

the boiler, which could damage the boiler and cause property damage and/or severe personal injury. Verify that the boiler is properly and

securely mounted before leaving unsupervised. Failure to comply with the above and properly mount the boiler could result in substantial

property damage, severe personal injury, or death.

This wall mounting system is not seismic rated and should not be applied as such. Failure to comply with the above and properly mount the

boiler could result in substantial property damage, severe personal injury, or death.

Positioning the Boiler on the Wall

1. Attach the wall bracket on the location where you want to install the boiler. Ensure it is level and on stud (16” centers) before proceeding.

2. Mark the four drill holes with a pencil or marker. Remove the wall bracket.

3. Drill four (4) holes using a 5/32 drill bit at the marked hole locations.

4. Mount the wall bracket to the wall with the four (4) included anchor bolts. Ensure the mounted bracket is level. See Figure 6A.

5. Align the boiler bracket grooves on the back of the boiler with the tongues on the wall bracket and hang the boiler on the bracket.

See Figure 6B.

Figure 6 - Wall-Mounting the Boiler

K. Flow Restrictor

A ow restrictor is installed on this boiler in the DHW inlet adapter to

avoid excessive ow at the faucets. See Flow Charts, this manual, for

more information.

If it is necessary to further increase ow to the system, replace the

factory installed white ow restrictor with the blue included with the

boiler by following the instructions below.

WARNING

If the boiler is already fully installed, turn the gas, power, and

water o to the boiler and drain all water from the boiler BEFORE

proceeding. Failure to comply could result in substantial property

damage, severe personal injury, or death.

Figure 7 - A - Removing the DHW Inlet Filter, B - Removing the Flow

Restrictor

1. Locate the DHW inlet adapter on the bottom of the boiler.

2. Pull the two pins to release the DHW inlet lter. See Figure 7-A. The ow restrictor is attached to the top of the lter assembly.

3. Remove the installed white ow restrictor and replace it with the blue ow restrictor included with the boiler. See Figure 7-B.

4. Reinstall the DHW inlet lter.

5. Reinstall the two pins.