Rheem 834 Series, Инструкция по эксплуатации

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TM081 Rheem 834 Series Hydroelectric CFGWH Service Instructions
REV: AA Issued: 22/02/17
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed uncontrolled.
18
Gas Valve
The gas valve is an electromagnetic valve
designed to control gas flow to the pilot and
main burner. All heaters utilise a CK-690
gas valve that is equipped with an internal
gas regulator, pilot solenoid valve (SV1),
main burner safety solenoid valve (SV2),
main burner solenoid valve (SV3) and
motorised actuated solenoid valve (MASV).
The gas delivered by the gas valve to the
main burner is adjustable for both the
minimum operating (low gas rate) and
maximum
operating (high gas rate)
positions via the temperature controller
(refer to 'Checking & Adjusting Burner Gas
Pressure' on page 47).
Refer to the following pages for gas valve information:
Gas Valve Information Page
Wiring Diagram 8
Sequence of Operation (written explanation) 10
Operational Flow Chart 14
Checking Inlet Gas Pressure 47
Checking & Adjusting Burner Gas Pressure 47
Adjusting the Gas Valve Gas Regulator 49
Temperature Controller
The AT102-RH temperature controller
is an electronic device that monitors
and controls the water temperature by
energising and de-energising the gas
valve solenoids and driving the MASV
up or down to increase or decrease
the flow of gas to the main burner.
All electrical components connect to
and are controlled or monitored by the
temperature controller except for the
ignition rod and flame sensor which
are controlled and monitored by the
ignition module.
The temperature controller has the following features:

Green and red LED's that provide operational and fault indication.

DIP Switches that are utilised determine heater operation and adjustment.

Min and Max burner pressure adjustment dials.

3.7 VDC rechargeable battery.