Weil-McLain AQUAPLUS105 - 105 Gallon Aqua Plus Indirect Fired Water Heater

User Manual - Page 2

For AQUAPLUS105.

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AQUA PLUS indirect-fired water heatersProduct Manual
Contents

When servicing water heater . . . . . . . . . . . . . . . . . . . . 3
Operating restrictions . . . . . . . . . . . . . . . . . . . . . . . .3
Boiler water restrictions . . . . . . . . . . . . . . . . . . . . . . . 3
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Code restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Water heater placement . . . . . . . . . . . . . . . . . . . . . . .4
Install levelling legs . . . . . . . . . . . . . . . . . . . . . . . . . 4
Domestic water piping requirements. . . . . . . . . . . . . . . . 5
Water heater operating restrictions. . . . . . . . . . . . . . . . . 5
Boiler water restrictions . . . . . . . . . . . . . . . . . . . . . . . 5
Hot Water Can Scald! . . . . . . . . . . . . . . . . . . . . . . . . 5

Piping overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Maintaining domestic water temperature in the supply piping . 8
Time delay at fixtures . . . . . . . . . . . . . . . . . . . . . . . . 8
Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Components required . . . . . . . . . . . . . . . . . . . . . . . .8
Connecting to the water heater . . . . . . . . . . . . . . . . . . .8
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Potential problems . . . . . . . . . . . . . . . . . . . . . . . . . 10
 
 
Filling the piping. . . . . . . . . . . . . . . . . . . . . . . . . . 19
 
Wiring requirements. . . . . . . . . . . . . . . . . . . . . . . . 20
Circulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Zone Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wiring to the water heater. . . . . . . . . . . . . . . . . . . . . 20
Wiring options . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Use domestic priority . . . . . . . . . . . . . . . . . . . . . . . 20
 
 
 
Boiler water restrictions . . . . . . . . . . . . . . . . . . . . . . 23
Maximum boiler-side flow rate . . . . . . . . . . . . . . . . . . 23
Filling the domestic water tank . . . . . . . . . . . . . . . . . . 23
Start-up and operation . . . . . . . . . . . . . . . . . . . . . . 23
Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . 23
 
Setting the thermostat . . . . . . . . . . . . . . . . . . . . . . . 24
Hot Water Can Scald! . . . . . . . . . . . . . . . . . . . . . . . 24
 
ANNUAL start-up by qualified service technician . . . . . . . 25
Inspect anode and water heater interior . . . . . . . . . . . . . 26
Drain the water heater if necessary during shutdown periods . 26
 
Troubleshooting procedures . . . . . . . . . . . . . . . . . . . 27
Preparation for troubleshooting . . . . . . . . . . . . . . . . . 27
 
 
 
 
 
 
Part number GL-E223-ADOC 0614
2
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