Rheem RTGH-RH10DV - Gas Detection; Air Pressure Switch

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AP18733 REV. 3.2.17

2. GAS DETECTION

3. AIR PRESSURE SWITCH

Figure 51 – Gas Detection Error Analysis Tree

Figure 52 – Air Pressure Switch Analysis Tree

Main Page

Table of Contents4
User's Information7
- Product and Safety Information7
- Maintenance10
  - Service Technician10
  - Owner Maintenance10
- Maintenance Procedures10
- Troubleshooting13
The Following Are Installation Instructions for the Contractor14
Items Shipped with the Water Heater15
Safety Regulations15
- Operation and Installation Warnings15
- Improper Combustion16
- Gas16
- When Servicing the Water Heater17
- Water Chemistry Requirements17
- Freeze Protection17
- Scalding18
- High Elevation Installations18
Specifications19
- Components20
- Dimensions21
Prepare Water Heater Location22
- Before Locating the Water Heater22
- Leveling23
- Clearances for Service Access23
- Residential Garage and Closet Installations23
Exhaust Vent and Intake Pipe24
- Carbon Monoxide Detectors24
- Prevent Combustion Air Contamination24
Removing a Water Heater from a Common Vent System25
- Unpacking the Water Heater25
- Wall-Mounting the Water Heater26
Venting27
Intake Pipe and Exhaust Vent Guidelines27
- Approved Vent Materials30
- Allowed Schedule 40 Vent Lengths (Pvc, Cpvc, Pp)31
- Tightening Water Heater Collar to Exhaust Vent and Intake Pipe31
- Vent Termination32
- Common Vent Piping36
Install the Condensate Drain40
Gas Piping40
Gas Pipe Sizing Tables40
Gas Pipe Sizing40
Natural Gas Pipe Sizing40
LP (Liquid Propane) Gas Pipe Sizing41
Gas Connection Requirements42
Additional Precaution for Excess Flow Valve (Efv)43
Adjusting Gas Pressure at the Water Heater43
Setting and Verifying the Combustion Setting43
Water Piping44
General Plumbing Connection Guidelines44
Install a Backflow Preventer46
Piping the Water Heater46
Applications46
Pressure Relief Valve49
Connect Electrical Power / Initial Startup50
Wiring Information50
Dip Switches51
Operating System Instructions57
Control Panel57
Lcd Display Descriptions57
Start-Up Sequence58
Changing the Dhw Set-Point58
Status Display Mode59
Changing the Time60
Installer Mode61
Using Recirculation Modes - Step 162
Setting the Recirculation Timer - Using Recirculation Modes - Step 263
- Set the Recirculation Timer Type64
- Setting the Recirculation Run Time (Pro9 Recirculation Timer)65
- Resetting the Recirculation Run Time66
Error Mode67
Error Tree Analysis67
- Flame Detection71
- Gas Detection72
- Air Pressure Switch72
- Inlet / DHW / Operating Temperature Sensors73
Final Installation Checklist74
Troubleshooting76
Diagnostics and Suggested Corrective Actions76
Maintenance Procedures77
Replacement Parts81
Limited Warranty for 180,000 / 199,000Btu/Hr Tankless Water Heaters82
Maintenance Report84
Maintenance Notes85
Customer Installation Record Form86

Rheem RTGH-RH10DV - Gas Detection; Air Pressure Switch

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