Plumbing Kit Installation - Rinnai E75CN Installation & Servicing Instructions Manual

6.1.1
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NOTICE
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NOTICE
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NOTICE
Compression fittings.
Parts:
Fitting instructions:
1
2
3

Plumbing Kit installation

20
Plumbing Kit installation
Rinnai supplies specifi c Plumbing Kits with each boiler type, which must be fi tted
directly underneath the boiler on the supply and return pipe. Use of the Rinnai boiler
without the plumbing kit will void the warranty.
To protect the entire heating system we recommend installing a dirt particle
trap in the return circuit. When the boiler is installed to an existing heating
system this trap is required. Use of a Y strainer is not permitted as substitute
for a dirt trap.
- Install shut-off valves immediately before and after the dirt particle fi lter to allow
the fi lter to be cleaned.
- Position 3 (fi gure 6) is a garden hose thread boiler drain, that can be used to drain
the boiler or add water tratment additives to the system, such as inhibitors or glycol.
- Position 4 (fi gure 6) is the supply connectionfor an idirect tank when used with the
optinal 3-way valve kit.
- For information on locating the expansion tank and system fi ll, please see the
Rinnai Boiler Applications Manual.
Thoroughly fl ush all pipes and radiators. We recommend the use of a Rinnai
approved system cleaner. Refer to the Rinnai Boiler Applications Manual for
an approved list of Rinnai system cleaners.
- Refer to the installation template and chapter 5.3 for the pipe connection
dimensions.
- Fit the bronze adapter fi ttings, supplied with the boiler (fi g. 6, pos. 4) fi rst to the
Plumbing Kit and then to the boiler.
The plumbing kit is not intended to support the weight of the piping. Appropriate
piping supports should be used to support all attached piping to the boiler and
plumbing kit.
1. Nut
2. Ferrule
3. Fitting
1. Push the complete
fitting over the pipe as
far as possible. Ferrule
should be over the
pipe completely.
2. Turn the nut handtight
clockwise.
3. Use 2 wrenches, one
to hold the fitting on
its place, the other
for tighten the nut
clockwise in 3/4 turn.
4
1
2
8
3
5
6
1. Plumbing kit
2. Safety valve
3. Drain and Purge connection
4. Bronze adapter fi ttings
5. Service valves
6. Flow 1 1/4"
7. Return 1 1/4"
8. Pressure gauge
7
fi g. 6