elco Thision EVO WH 250-120, Operation And Installation Manual

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Contents
Contents .................................................................. 3
General regulations ................................... 5
Application ................................................. 5
Norms and regulations .............................. 5
Construction
Layout of water heater ............................... 7
Operating principle .................................... 7
Technical data ................................................................. 10
Water heater Installation .......................... 12
Connecting the water heater .................... 12
Commissioning Water and hydraulic system ...................... 17
Gas supply ................................................ 18
........................... 18
Flue and air intakeconnections ................. 18
Prepare water heater for first startup ........ 19
Combustion analysis ................................. 20
........... 21
Gas tightness check .................................. 21
Water heater shut down ............................ 21
Maintenance Checklist .................................................... 25
Replacing the electrodes ........................... 25
Cleaning the condensate receptacle ......... 26
Cleaning and refilling the syphon .............. 26
Inspection of the combustion chamber ...... 26
Water pressure and quality ....................... 27
Combustion analysis ................................. 27
Gas pressure ............................................. 27
Gas tightness check .................................. 27
Safety devices ........................................... 27
Maintenance Protocol ................................. 28
Lockouts .................................................................. 22
Safety Provisions ...................................... 6
Thision WH principle ................................. 7
Unvented Applications .............................. 14
Cylinder diagnosis & controls .................... 19
Commissionign protocol ............................. 29
3
Condensate connections
Check functionality of safety devices
Cylinder venting .........................................
17