D. cleaner / cement, E. condensate – HTP Munchkin High Efficiency Heater User Manual

Page 8

4-D. CLEANER / CEMENT

Cement for Exhaust and Intake piping, must conform to ASTM D-2564 for joining PVC joints. Make sure to check all joints

to assure that they are properly sealed against leaks. It is important to pay special attention to the exhaust piping, which is

pressurized with harmful gases!

4-E. CONDENSATE

This is a condensing high efficiency appliance, therefore this unit has a condensate removal system. Condensate is nothing

more than water vapor, derived from the combustion products, similar to an automobile when it is initially started. This

condensate does have a low PH and should be treated with a condensate filter. This filter contains either lime crystals or

marble crystals, which will neutralize the condensate. The outlet of the filter is sized for 5/8" ID (Inside diameter) plastic

tubing. It is very important that the condensate line is sloped away from and down to a suitable inside drain, if the condensate

outlet on the Munchkin is lower than the drain, you must use a condensate removal pump. A condensate filter and a

condensate pump kit are available from HTP. It is also very important that the condensate line is not exposed to freezing

temperatures, or any other type of blockage. Plastic tubing should be the only material used for the condensate line. Steel,

brass, copper or others will be subject to corrosion and deterioration. A second vent may be necessary to prevent condensate

line vacuum lock if a long horizontal run is used. Also, an increase to 1" tubing may be necessary.

VENTING EXAMPLES

TOTAL

EQUIVALENT

GRAND TOTAL

COMBINED

FRICTION

TOTAL

VENT LENGTH

LOSS

FRICTION

(FEET)

QTY.

(FEET)

LOSS

WITH FITTING

INTAKE &

OF 90*

FOR EACH

FOR

FRICTION

EXHAUST

ELBOWS

ELBOW

ELBOWS

LOSS ADDED

______________________________________________________________________________

*12