Rheem Multipak MPE02, Руководство пользователя и инструкции по установке

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INSTALLATION - WATER HEATER
28
FLUE LENGTHS
Maximum Flue Length
The system will not operate if there is excessive restriction (pressure drop) in the flueing system.
The certified flue length is 9m with a maximum of 3 x 90
o
elbows.
•
The maximum flue length with no elbows can be 13.5m.
•
Reduce the maximum length by 1.5m for every 90
o
elbow and by 0.75m for every 45
o
elbow
•
The flue must be installed with a gradient of 20 mm per metre of horizontal run (1; 50 fall)
Note: Ensure the seam of the inner flue in horizontal runs is at the top of the installation.
Minimum Flue Length
The minimum horizontal flue distance which may be used is 300 mm, provided:
•
One 90° Elbow is connected to the flue outlet of the water heater, and
•
The Horizontal Flue Terminal is connected to the 90° Elbow.
FLUE CONDENSATE
Condensate from the combustion gases may
form in the flue. The flue outlet assembly at the
top of the water heater incorporates a
condensate drain spigot to allow for draining of
this condensate.
This spigot is covered by a rubber cap held in
position by a clamp. For certain types of
installations, it will be necessary to remove the
clamp and cap and create connection to the
condensate tube assembly. Refer to Figure 17.
The Condensate Trap must be filled with water
prior to the operation of the water heater. Refer
to
Figure 18- Condensate Trap and
Condensate Drain Line on page 30 .
DRAINING THE CONDENSATE
The connection to the condensate manifold assembly must be made under the following conditions in order to
prevent condensate from draining back into the water heater:
•
Where vertical sections exceeding 2 m are incorporated in a horizontally terminating flue system.
•
Where the flue terminates vertically.
•
Where there is a horizontal run of flue between two elbows and the elbow closest to the flue terminal is
orientated upward. Refer to
Figure 20- Typical Installation Horizontal Terminal with Multiple Vertical and
Horizontal Sections on page 32 . This horizontal run of flue must have a gradient upward to the flue terminal.
Condensate will drain back toward the water heater.
If the flue installation is outside of above conditions, the connection to the condensate manifold MUST NOT be
made. The clamp and the rubber cap is to remain on the water heater spigot for such flue installation.
Failure to discharge build-up of condensate in flues could allow acidic flue gas condensate to enter into the
water heater flue-way, causing premature failure of the water heater. Any resultant faults will not be covered by
the Rheem warranty.
Note: A horizontal run of flue connecting directly to a Horizontal Flue Terminal must have a gradient downward
to the flue terminal. Condensate will drain from the flue terminal.
Figure 17 - Condensate Drain Spigot
CONDENSATE
SPIGOT
REMOVE
CLIP REMOVE
RUBBER CAP