Rheem 834 Series Service Instructions Manual page 5

Component Specifications
Resistance value tolerances ±10%.
Specification
Water Flow Sensor
Hydro Electric Generator (G)
Water Throttle Valve (WV)
SV1 (pilot valve)
SV2 (main burner safety valve)
Gas
Valve
SV3 / MASV
Hot Water Outlet Temperature Sensor
Overheat Protection
Ignition Module
Temperature
Controller
Ignition Rod
Flame Sensor
Burner Injectors
Inlet Water Strainer
(4)
SV3 / MASV = Motor Adjustable Solenoid Valve (gas flow rate control) for main burner.
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.
SV3
(4)
MASV
Software
Overheat Switch
Model
Flame Sensitivity
Model
Battery
DIP Switches
Min & Max Dials
Quantity
Orifice diameter
834012N0 834012P0
Pulses voltage supplied from temperature control
according to water flow rate
21 Hz @ 3.01 L/m, 74 Hz @ full flow rate
Generates 1.1 ~ 1.7 VDC
(8 ohms: white wire to white wire)
Start voltage ≥ 2.4 VDC, hold in > 0.32 VDC
(8 ohms: white wire to white wire)
Ignition voltage > 0.9 VDC, hold in > 0.1 VDC
(40 ohms: orange wire to earth)
> 0.9 VDC (60 ohms: green wire to earth)
> 0.6 VDC (100 ohms: green wire to earth)
> 1.2 VDC (8 ohms: red wire to black wire)
Yellow wire output motor operation pulse check
For temp/resistance chart refer to 'Testing the Hot
Water Outlet Temperature Sensor' on page 39
Hot water outlet temperature shut down @ 85°C
Contacts open @ 95°C ± 4.5°C
manual reset @ ≤ 90°C
P700 (refer to 'Ignition Module' on page 19)
> 0.5 µA. Normal flame generation 2 ~ 10 µA
(2 µA @ min fire, 10 µA @ max fire)
AT102-RH
3.7 VDC lithium ion rechargeable 600 mA/h
Refer to 'DIP Switch Adjustments' on page 45
Refer to 'Checking & Adjusting Burner Gas
Pressure' on page 47
3.5 ~ 4mm gap. Refer to 'Adjusting the Ignition Rod
Gap' on page 46
Refer to 'Adjusting the Flame Sensor' on page 46
14 14
1.3 mm 0.8 mm
Accessed by removing cold water inlet drain plug
834016N0 834016P0
18 18
1.3 mm 0.8 mm
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