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MULTIPLE WATER HEATER CONDENSATE TRAP AND CONDENSATE DRAIN LINE INSTALLATION
Depending upon the type of installation, it may be necessary to install a condensate trap and condensate drain
line to each water heater. Refer to
The drain line from each condensate trap may be:
•
Drained separately to a discharge point, or
•
Manifolded together with a single drain line running to a discharge point.
If discharged separately, a condensate trap must be installed and filled with water in each water heater drain
line prior to the discharge point.
CONDENSATE MANIFOLDED ASSEMBLY
If discharged from a manifolded drain line, follow below steps to install a condensate trap kit (P/N AS33121006)
and condensate tube kit (P/N AS3312007):
Identify the number of condensate tube kits required (AS3312007). One (1) condensate tube kit is
17.
required for each CFWH.
One (1) condensate trap kit is required (AS3312006) per a condensate manifold. Back to back
18.
systems require a manifold for each side and therefore 2 trap kits will be required.
4.
Install the CFWHs with 363mm pitch (or 20mm spacing between adjacent CFWH).
Remove the clamp and rubber cap from the condensate drain spigot on the water heater flue outlet.
5.
Ensure that each spigot is facing towards the right-hand side when facing the CFWH front cover.
Discard the clamp and the rubber cap.
Fit the long silicone tube and aluminium tube included in the condensate tube kit between the CFWHs
6.
Ensure the silicone tube is not kinked, twisted or pinched and ensure it is not caught on any CFWH
exterior surfaces.
7.
Fit the end of the short silicone tube to the spigot of the water heater flue outlet.
Cut the polyethylene tube included in the condensate tube kit to 348mm.
8.
Connect plastic tubes and plastic fittings to create a plastic tube manifold.
9.
-
Use a 90° elbow on the leftmost fitting, provided with the condensate trap kit.
-
Use the tee fitting provided with a condensate tube kit to connect two polyethylene tubes together.
The unused connection on the tee fitting should point upwards.
-
Use the tee fitting provided with a condensate tube kit as the rightmost fitting. The unused
connections on the tee should point vertically.
Connect the condensate trap assembly to the rightmost tee fitting connection facing downwards.
10.
11.
Secure each polyethylene tube connections with the plastic ratchet clamps provided with condensate
tube kits.
Connect each long silicone tube to the upward facing tee fitting connections. Ensure the silicone tube
12.
is not kinked, twisted or pinched.
Affix the condensate trap retaining bracket to the wall provided with the condensate trap kit using
13.
suitable anchors.
Affix the condensate manifold to the wall. P-clips are provided with condensate tube kits.
14.
Direct the outlet of the condensate trap to suitable drain. Two plastic elbows are provided to direct
15.
the outlet to a convenient position. The last tube section at the end of the condensate trap assembly
may be cut shorter, however any other section of the trap assembly must not be tampered.
Fill the trap with water from the short silicone tube on the rightmost condensate elbow assembly.
16.
Observe that water freely discharges from the outlet of the condensate trap. Fit the short silicone tube
back on the CFWH flue spigot.
"Draining the Condensate"
41
INSTALLATION – WATER HEATER
on page 28.
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