Eco-King HWB-299, Инструкция по установке и обслуживанию

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E93.1801EN171 HWB installation manual 41
10.3.1 I
NSTRUCTIONS FOR WORKING WITH CEMENTING
PVC/ CPVC
PIPE CONNECTIONS
:
1. Work from the water heater to vent or air termination. Do not exceed the lengths given in this manual for the air
or vent piping.
2. Cut pipe to the required lengths and deburr the inside and outside of the pipe ends.
3. Chamfer outside of each pipe end to ensure even cement distribution when joining.
4. Clean all pipe ends and fittings using a clean dry rag. (Moisture will retard curing and dirt, or grease will prevent
adhesion.)
5. Dry fit vent or air piping to ensure proper fi t up before assembling any joint. The pipe should go a third to two-
thirds into the fitting to ensure proper sealing after cement is applied.
6. Priming and Cementing:
a. Handle fittings and pipes carefully to prevent contamination of surfaces.
b. Apply a liberal even coat of primer to the fitting socket and to the pipe end to approximately 1/2" beyond
the socket depth.
c. Apply a second primer coat to the fitting socket.
d. While primer is still wet, apply an even coat of approved cement to the pipe equal to the depth of the fitting
socket along with an even coat of approved cement to the fitting socket.
e. Apply a second coat of cement to the pipe.
f. While the cement is still wet, insert the pipe into the fitting, if possible, twist the pipe a 1/4 turn as you insert
it. NOTE: If voids are present, sufficient cement was not applied and joint could be defective.
g. Wipe excess cement from the joint removing ring or beads as it will needlessly soften the pipe.
Near water heater PVC/ CPVC venting.
Starter piece must have a minimum length according table "PVC Exhaust Venting".
PVC PIPE
COUPLING
STARTER PIECE
IN CPVC