Lochinvar ARMOR 151 - Manual (Page 52)

Installation & Operation Manual
52
9
Condensate disposal
Condensate drain
1. This water heater is a high efficiency appliance that
produces condensate.
2. The side of the water heater has a 1/2 inch PVC union
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 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 (FIG. 9-1) is available from the factory
(KIT3087 for Models 151 - 501 and KIT3046 for Models
601 - 801).
4. Install the 1/2 inch PVC tee assembly (shipped with the
unit) as shown in FIG. 9-1.
5. Leave the top of the 1/2 inch tee OPEN. This is needed
as a vacuum break.
6. Do not expose condensate line to freezing temperatures.
7. Use only plastic tubing or piping as a condensate drain
line (FIG. 9-1).
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.
8. 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
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 f low 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.
1/2” PVC TEE ASSEMBLY
(FACTORY SUPPLIED)
1/2” PVC UNION
(FACTORY SUPPLIED)
NEUTRALIZER KIT
FLOOR DRAIN OR DRAIN PAN
Figure 9-1 Condensate Disposal
NOTE: KIT3087 shown for illustration purposes.