Weil-McLain WM97+ - Page 28

Weil-McLain WM97+

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CWH companion water heater — Product Manual

Figure 22 Contractor ADVANCED DHW SETTINGS menus (see Figure 21, page 27 for setting values and descriptions)

WM97+ Control settings — Advanced

(continued)

Part number 635-500-156/0113

28

Table of Contents

Default Chapter2
- Table of Contents2
WM97+ Boiler with Companion Water Heater (CWH)3
- WM97+ Boiler3
- Companion Water Heater (CWH)3
Please Read before Proceeding4
- When Servicing Water Heater4
- Operating Restrictions4
- Boiler Water Restrictions4
- Location4
Pre-Installation5
- Codes5
- CSA Low Lead Content Only Certification5
- Code Restrictions5
- Clearances and Placement5
- Domestic Water Piping Requirements6
- Water Heater Operating Restrictions6
- Boiler Water Restrictions6
- Adjusting Leveling Legs6
- Alignment of CWH under the Boiler6
- Hot Water Can Scald6
CWH Mixing Valve7
- Mixing Valve Must be Installed7
- CWH Orientation7
- Mixing Valve Installation and Adjustment7
Domestic Water Piping8
- Piping Overview8
Recirculation (if Used)10
- Maintaining Domestic Water Temperature in the Supply Piping10
- Time Delay at Fixtures10
- Balancing10
- Components Required10
- Connecting to the Water Heater11
- Components (See Figure 10)11
- Operation11
Boiler/Cwh Piping - 70 or 110 / Right-Side Mixing Valve12
- Connections to Boiler and System12
- CWH Circulator Mounting13
- Boiler Water Connections13
Boiler/Cwh Piping - 70 or 110 / Left-Side Mixing Valve14
- Connections to Boiler and System14
- CWH Circulator Mounting15
- Boiler Water Connections15
Boiler/Cwh Piping - 155 / Right-Side Mixing Valve16
- Connections to Boiler and System16
- CWH Circulator Mounting17
- Boiler Water Connections17
Boiler/Cwh Piping - 155 / Left-Side Mixing Valve18
- Connections to Boiler and System18
- CWH Circulator Mounting19
- Boiler Water Connections19
Wiring20
- Connect Circulator and Sensor Harnesses20
Water Heater Filling and Start-Up21
- Boiler Water Restrictions21
- Filling the Domestic Water Tank21
- Start-Up Checklist21
- WM97+ Control Set-Up21
- Verify Operation21
- Homeowner Instruction21
CWH Control Quick Set-Up22
Water Heater Maintenance23
- ANNUAL Maintenance23
- Shutdown Procedure23
WM97+ Control Settings - Advanced24
- Dhw Settings25
- Dhw Performance25
- Tank Storage Temperature25
- Max Run Time25
- Adjust Schedules (Weekdays / Weekends)25
- Advanced Setup25
Troubleshooting29
- Troubleshooting Procedures29
- Preparation for Troubleshooting29
- Water Quality30
Replacement Parts39
Determine Required Temperature Rise40
Ratings41
AHRI Ratings42
Dimensions43

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