User manual

Installation & Servicing Instructions Rinnai Q-Series

10 Startingup:Fillingandde-aeratingtheboilerandinstallation

CAUTION

Observe the following rules of safety:

- All work on the unit must take place in a dry environment.

- Rinnai units may never be in operation without their housing, except in connection

with maintenance or adjustments (see Chapter 13 and 14).

- Never allow electrical or electronic components to come into contact with water.

NOTICE

Carry out the following tasks in connection with maintenance, etc. to an already-

installed unit:

- Shut down all programs

- Close the gas shut off valve

- Shut off the power at the main power switch

- Close the service valves (supply and return)

NOTICE

Take note of the following when maintenance or adjustments are needed:

- The unit must be able to function during these activities; for this reason, the unit’s

supply voltage, gas pressure and water pressure must be maintained. Ensure that

this is not a source of potential danger during these activities.

Followingmaintenanceorotheractivities;alwayschecktheinstallationofall

partsthroughwhichgasows(withbubbletestusingleak-searchspray).

10.1Requirementsofthewatersystem

Before lling the heating system, the complete system, including all zones, must be

thoroughly cleaned and ushed to remove sediment. Flush until clean water runs

free of sediment. Rinnai suggests using an approved system cleaner to ush the

system, but not the boiler. Always use Rinnai approved antifreezes. See the list at

the end of this chapter. Never use reverse osmosis, D.I., or distilled water for lling

the heating system.

Do not use petroleum-based cleaning or sealing compounds in the boiler

system. Damage of seals and gaskets in boiler and system could occur,

resultinginsubstantialpropertydamage.

The central heating installation needs to be lled with potable water.

Useonlypotablewaterorapprovedglycolforllingtheheatingsystem.

Whenthewaterhardnessofthellingwaterexceeds>10.5gpg(200mg/L)and

thevolumeoftheinstallation>20L/kW(5.2gallons/3,412BTU)thewaterhasto

betreateduntilbelowthemaximumvalueof10.5gpg(200mg/L).

ThepHvalueoftheinstallationwatermustbebetween6.5and8.5.

Check the pH value using proper equipment or by having the water analyzed by a

water treatment company.

If pH differs from above, contact Rinnai engineering for further assistance.

Failuretoadheretothewaterqualityrequirementswillvoidthewarranty.

CAUTION

NOTICE

WARNING

NOTICE