43
A condensate trap MUST be fitted at the flue outlet of the water heater, regardless of the flue
termination type. The condensate drain must be primed with water to prevent gas flue leak and must
be routed to drain in accordance with local codes and regulations.
WARNING:
The MVB operates with a positive pressure flue. All joints must be sealed to prevent
spillage at the joints which could contaminate the air supply to the water heater.
Support horizontal runs at 1.5m max, use braces for vertical runs and support under or near elbows.
NOTE:
The MVB is supported by a range of stainless steel flue components (refer to
41). Contact Rheem for further details.
The flue MUST vent VERTICALLY, and the terminal must be at least 250mm above the top of the
water heater and 900mm above the air intake.
The exception is when the flue will terminate HORIZONTALLY and a wall exists between the flue
terminal and the air intake, and flue gasses cannot be recycled back to the air intake.
VERTICAL TERMINATING FLUES
Lubricant is available to lubricate the flue gaskets for ease of installation. DO NOT use soapy water.
1. Fit the flue adaptor to the flue outlet located at the bottom back of the water heater and secure with
the screw clamp (supplied).
2. Fit one of the flue condensate drain/port sections with the drain pointing towards the ground and
secure to the adaptor with the clamp.
Note: the clamp will only fit one way. DO NOT try to force the clamp to close. If it is not
closing, it is the wrong way. If forced, be careful to use a screwdriver to release the clamp
as the releasing pressure may cause injury if attempting to release by hand.
3. Depending on the plumbing arrangement, it may be necessary to fit a 250mm or 500mm straight
flue section after the condensate drain. Secure to the condensate drain with the clamp.
4. Fit the 87 degree bend so that the flue is now pointing vertically upwards and secure to the adaptor
or straight section with the clamp.
5. Fit the second flue drain/port section after the bend with the port pointing away from the water
heater. This will be used to analyse the products of combustion during commissioning. Secure to
the bend with the clamp.
Содержание 910500
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