Rinnai E75CN - Manual (Page 18)

Installation & Servicing Instructions Rinnai E-Series
18
6.1.1 Plumbing Kit installation
Rinnai supplies specific Plumbing Kits with each boiler type, which must be fitted
directly underneath the boiler on the supply and return pipe. Use of the Rinnai boiler
without the plumbing kit will result in the void of 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 filter to allow
the filter to be cleaned.
- Position 3 (figure 6) is a garden house 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 (figure 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 fill, please see the
Rinnai Boiler Applications Manual.
Thoroughly flush 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 fittings, supplied with the boiler (fig. 5, pos. 4) first to the
Plumbing Kit and then to the boiler.
- Connect the expansion tank to the system. See chapter 6.2.
- Connect the pipes so that they are free from strain.
NOTICE
i
NOTICE
i
1
2
3
4
5
6 7
1. Plumbing kit
2. Safety valve
3. Filling connection
4. Bronze adapter fittings
5. Service valves
6. Flow 1 1/4"
7. Return 1 1/4"
8. External pump
Plumbing Kit installation fig. 5
8
Compression fittings.
Parts:
1. Nut
2. Ferrule
3. Fitting
Fitting instructions:
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.
2
1
3