Install Instructions

ManualsBrandsLochinvar ManualsCommercial Water Heaters199,999 BTU Armor Condensing Commercial Water Heater, Wall Mount (NG)

Installation & Operation Manual

9 Condensate disposal

Condensate drain

1. This water heater is a high efficiency appliance that

produces condensate.

2. The bottom of the water heater has a 1/2 inch pipe for

connection of a 1/2 inch PVC pipe (FIG. 9-1).

3. Slope condensate tubing down and away from the water

heater into a drain or condensate neutralizing filter.

Condensate from the Armor wall mount water heater will

be slightly acidic (typically with a pH from 3 to 5). Install

a neutralizing filter if required by local codes.

A Neutralizer Kit is available from the factory.

4. Do not expose condensate line to freezing temperatures.

5. Use only plastic tubing or piping as a condensate drain

line (FIG. 9-1).

6. Leave the top of the tee assembly installed in the unit

open, this is needed as a vacuum break. The blocked

drain switch will shut the water heater down before any

condensate can flow out of the tee.

Use materials approved by the authority

having jurisdiction. In the absence of other

authority, PVC and CPVC pipe must comply

with ASTM D1785 or D2845. Cement and

primer must comply with ASME D2564 or

F493. For Canada use CSA or ULC certified

PVC or CPVC pipe, fittings, and cement.

7. A condensate removal pump is required if the water heater

is below the drain. When installing a condensate pump,

select one approved for use with condensing water heaters

and furnaces. The pump should have an overflow switch

to prevent property damage from condensate spillage. The

switch should be wired in series with the blocked drain

switch inside the water heater (see FIG. 10-1 on page 53).

NOTICE

To allow for proper drainage on large

horizontal runs, a second line vent may be

required and tubing size may need to increase

to 1 inch.

The condensate line must remain

unobstructed, allowing free flow of

condensate. If condensate is allowed to

freeze in the line or if the line is obstructed in

any other manner, condensate can exit from

the water heater tee, resulting in potential

water damage to property.

CONDENSATE TRAP

REMOVABLE CAP

FOR CLEANING TRAP

CONDENSATE DRAIN CONNECTION -

ROUTE TO FLOOR DRAIN OR

NEUTRALIZING FILTER USING:

1/2" PVC PIPE & FITTINGS or

1/2" CPVC PIPE & FITTINGS or

5/8" I.D. PLASTIC TUBING

(FIELD SUPPLIED)

Figure 9-1 Condensate Disposal