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6226 Netherhart Road, Mississauga, ON L5T 1B7 

99-0234 – Rev 00 

 

VTech

™ Series  

Installation and Service Manual 

Storage Type Domestic Hot Water Heater: Models 80 to 499 

 

 

 

 

 

WARNING 

If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal 
injury or death.

 

WHAT TO DO IF YOU SMELL GAS 

 

Do not try to light any appliance, 

 

Do not touch any electrical switch; do not use any phone in your building, 

 

Immediately call your 

gas supplier from a neighbour’s phone. Follow the gas supplier’s instructions, 

 

If you cannot reach your gas supplier, call the fire department. 

A Qualified installer, service agency or the gas supplier must perform installation and service. 

WARNING 

Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance. 

TO THE INSTALLER:

 After installation, these instructions must be given to the end user or left on or near the appliance. 

TO THE END USER:

 This booklet contains important information about this appliance. Retain for future reference. 

 

 

Summary of Contents for VTech 0080

Page 1: ...one in your building Immediately call your gas supplier from a neighbour s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department A Qualified insta...

Page 2: ...1...

Page 3: ...trol Valve 16 4 4 Gas Pressure Switches 17 4 4 1 Low Gas Pressure 17 4 4 2 High Gas Pressure 17 4 5 Air Pressure Switches 17 4 5 1 Blocked Flue Switch 17 4 5 2 Low Air Switch 17 4 6 Combustion Air Blo...

Page 4: ...ect all gas and flue connections Installation and service must be performed by CAMUS qualified factory trained service technicians Water heaters are heat producing appliances To avoid damage or injury...

Page 5: ...465 0100 53 27 41 11 3 4 49 1 2 11 1 2 48 41 7 1 4 4 1 2 3 3 2 4 2 1 2 465 0125 66 27 54 11 3 4 62 1 2 11 1 2 61 54 7 1 4 4 1 2 3 3 2 4 2 1 2 520 0150 66 27 54 11 3 4 62 1 2 11 1 2 61 54 7 1 4 4 1 2 3...

Page 6: ...222 840 258 977 317 1200 436 1650 0150 202 765 222 840 251 950 293 1109 365 1382 507 1919 0199 262 992 289 1094 327 1238 383 1450 478 1809 667 2525 0250 303 1147 337 1276 385 1457 456 1726 575 2177 8...

Page 7: ...utomatically Fired Boilers ASME CSD 1 All water heaters conform to the latest edition of the ASME Boiler and Pressure Vessel Code Section II Where required by the authority having jurisdiction the ins...

Page 8: ...ions can be taken to protect the appliance from damage If for any reason the unit is to be shut off where danger of freezing exists the following precautionary measures must be taken Shut off gas supp...

Page 9: ...e As the pH number increases in numerical value the relative acidity of the discharge decreases The neutralized condensate may then be discharged into a suitable drain system without fear of damaging...

Page 10: ...ng of Equipment and Air Supply for Appliances of the CSA B149 1 15 and CSA B149 2 15 installation code or applicable provisions of the local building codes Horizontal runs of vent pipe shall be secure...

Page 11: ...engineer must be used to prevent the extra suction from decreasing the pressure at the breeching If the vent cannot support a negative draft under all conditions and a positive pressure will be develo...

Page 12: ...asonry chimney must NOT be used to vent the products of combustion from a positive pressure appliance or any condensing appliances whether positive or negative pressure Category II III or IV As the VT...

Page 13: ...the Building US Only If combustion air is drawn from inside the building the mechanical equipment room does not receive air from outside via louvers or vent openings and the water heater is not equipp...

Page 14: ...armful to the water heater but can be unsightly The steam can also cause discoloration on exterior building surfaces Adjacent brick or masonry surfaces should be protected with a rust resistant sheet...

Page 15: ...st be free of contaminants o Incorrect installation and or location of the air inlet cap can allow flue products to be drawn back into the appliance This can result in incomplete combustion and potent...

Page 16: ...c Venting Kits can be ordered to provide venting and combustion air supply through one opening Vent air pipe still limited a maximum 100 equivalent feet 30 5M in length each Horizontal Concentric Vent...

Page 17: ...combustion air inlet to any other appliance 12 15 cm for appliances 100 000 Btuh 30kW 36 91cm for appliances 100 000 Btuh 30kW 9 23 cm for appliances 50 000 Btuh 15kW 12 30cm for appliances 50 000 Btu...

Page 18: ...Use a cold mirror or the flame of a match or candle 6 After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above ret...

Page 19: ...appliance the complete gas train and all connections must be purged of air and tested using soap solution The appliance and its individual gas shut off valve must be disconnected from the supply pipin...

Page 20: ...witch opens during operation the unit will lock out 4 6 Combustion Air Blower The VTech use a modulating air fan to provide combustible air gas mix to the burner and push the products of combustion th...

Page 21: ...r mounting flange provides a flame view port and the mounting point for the hot surface igniter and the flame sensor The hot surface igniter and flame sensor are removable from the burner mounting fla...

Page 22: ...is loop becomes the Point of No Pressure Change since the pressure at this point will remain constant regardless of pump operation In this case always pump away from the expansion tank connection and...

Page 23: ...ctivated Whenever an appliance is supplied with both an auto reset and manual reset high limit always set the auto reset limit 10 F 5 5 C below the manual reset limit to prevent nuisance tripping 5 5...

Page 24: ...ecessary 6 2 Ignition Control All models use the same 120VAC 1PH electrical supply used to power blower to provide voltage for the ignition circuit including the hot surface igniter The VTech operates...

Page 25: ...ON and OFF high limit adjustment pre and post purge time adjustments modulation rate limiting light off firing rate clock adjustment and Celsius or Fahrenheit unit selection The VTech control also of...

Page 26: ...Automatic Reset Codes Description 0 None 29 Burner switch turned OFF 30 Burner switch turned ON 47 Flame rod to ground leakage 49 Abnormal 24Vac voltage 50 Modulation Fault 61 Anti short Cycle 62 Fan...

Page 27: ...y USER TANK TOP Real time water temperature at the top of the tank USER TANK BOTTOM Real time water temperature at the bottom of the tank USER TANK AVG Average water temperature between the top and bo...

Page 28: ...us DIFF OFF Default 2 F Range 0 F to 15 F USER DIFF Defines the range below DIFF OFF to modulate heating output Default 15 F Range 2 F to 60 F 7 4 3 Monitor Menu Menu Description The MONITOR MENU allo...

Page 29: ...ghest recorded temperature at the tank bottom sensor USER TANK T HIGH Highest recorded temperature difference between the tank top and tank bottom sensors 7 4 4 Time Menu Menu Description The TIME MEN...

Page 30: ...takes place Adjustment of the display units to metric is through this menu Level Parameters Adjustable LOGIN ACCESS Used to login to the control at the installer level to have access to more advanced...

Page 31: ...material Material corresponds to stack temperature limits to protect the venting from damage by overheating 1 PVC 149 F 2 CPVC 194 F 3 PPS Polypropylene 230 F 4 SS Stainless Steel AL29 4C 250 F INST F...

Page 32: ...MIN MOD Minimum blower modulation speed as percent of full firing rate Set at factory INST START MOD Blower modulaiton speed at light off Set at factory INST MAX MOD Maximum blower modulation speed as...

Page 33: ...ton This level is restricted to the installer and requires a code to access Default AUTO control decides operaiton based on programmed settings Option OFF force disable Option HAND force enable Level...

Page 34: ...found in the gas train or related components DO NOT operate an appliance with a leak in the gas train valves or related gas piping Do not attempt to fire the unit with insufficient gas supply pressure...

Page 35: ...ntil combustion levels are satisfied Once settings are complete continue to run the machine for at least 5 minutes and record the final combustion data 8 3 3 Flame Monitoring Throughout the combustion...

Page 36: ...wer Annual The combustion air blower should be inspected annually to ensure it is not blocked with dust or debris The fan opening should be inspected for signs of contaminants or any other air restric...

Page 37: ...M FAILURE MODE ANALYSIS Incoming Power Two wires interchanged No effect on safety Live and Neutral wires are interchanged Transformer Tripped The 24Volts and 120 Volts wired are interchanged Transform...

Page 38: ...ottom sensor open Tank Top sensor open Flue sensor open Verify that the sensors are connected Verify that they are wired correctly Measure the resistance of the sensors 10k sensors Replace the sensor...

Page 39: ...re switch Low Gas Pressure Tripped YES Low gas pressure switch C6097A N O set to 3 w c YES Check incoming gas pressure and reset low gas pressure switch NO Turn blocked flue switch set screw 1 2 turns...

Page 40: ...is selected and PVC venting is used the setpoint must be reduced to below 150o F to avoid nuisance flame failures If a setpoint greater than 150o F is required venting with CPVC AL29 4C 316LL or PPE...

Page 41: ...38 Appendix A Electrical Schematics...

Page 42: ...39 Appendix B Parts Exploded View...

Page 43: ...40 Appendix B Controls Figure A Control Board Figure B Front Cover Assembly...

Page 44: ...41 Appendix B Gas Train Figure C Gas Train Figure D Circulator Assembly...

Page 45: ...6 01023 000 x x x x x x x x 9 1 Gas Valve 918 10250 000 x 833 25180 000 x x 833 25178 000 x x x x x x 10 1 1 2 SCH40 Pipe T B E 8 LG x x x x x x 3 4 SCH40 Pipe T B E 7 LG x 1 SCH40 Pipe T B E 6 LG x x...

Page 46: ...000 x 32 1 VT Circulator Piping Assembly 857 04406 001 x x 857 04405 001 x x 857 04404 001 x x x x 857 04403 001 x 33 1 Tank Bottom Sensor 817 04468 000 x 34 1 Tank Top Sensor 817 11088 000 x 35 1 Ven...

Page 47: ...________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ________________...

Page 48: ...heat exchanger is deemed to be repairable by CAMUS the repaired heat exchanger will be returned to the customer and a credit will not be issued Heat Exchanger shall be warranted for 20 years of the a...

Page 49: ...ing boilers as well as a supplier of specialty HVAC products Our service line is open 24 hours 7 days a week The CAMUS CERTIFIED seal assures you that Reliability Efficiency Serviceability are built i...

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