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If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal
injury or death.
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.
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.
WARNING
WHAT TO DO IF YOU SMELL GAS
WARNING
6226 Netherhart Road, Mississauga, ON L5T 1B7
VTech™ Series
Installation and Service Manual
Storage Type Domestic Hot Water Heater: Models 80 to 499
99-0234 – Rev 00
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Table of Contents
Related Manuals for Camus Hydronics VTech Series
Summary of Contents for Camus Hydronics VTech Series
- Page 1 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 ...
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Page 3: Table Of Contents
4.7 – Burner .................. 17 Table of Contents 4.8 – Ignition System ..............18 4.8.1 – Hot Surface Igniter (Glow Bar) ........18 4.8.2 – Flame Sensor ..............18 Part 1 – General Information ..........1 Part 5 – Water ................ 19 1.1 –... -
Page 4: Part 1 - General Information
WARNING It is important that all gas appliances are installed by a qualified installer/technician that is trained by CAMUS Hydronics. It is in your own interest and that of safety to ensure that all local codes, and all the following “NOTES”, “CAUTIONS”, and “WARNINGS”... -
Page 5: Product Ratings
1.3 – Product Ratings 1.3.1 – Dimensions, Connections and Weight ALL DIMENSIONS IN INCHES ***All units have 1 1/2" Water Connections and 1” Temperature & Pressure Relief Valve Connection*** Diameter of Ø Gas Ship Vent/Intake Pipe Model "A" "B" "C" "D"... -
Page 6: Performance, Storage And Electrical Ratings
1.3.2 – Performance, Storage and Electrical Ratings Input Output Minimum Input Electrical Tank Capacity Tank Capacity Model [Btu/h] [Btu/h] [Btu/h] [US GAL.] [LITERS] Full Load Amps* 0080 80,000 76,000 16,000 0100 100,000 95,000 20,000 0125 125,000 118,750 25,000 0150 150,000 142,500 30,000 0199... -
Page 7: Sequence Of Operation
1.4 – Sequence of Operation specified in the ANSI standards for gas-fired units, ANSI Z21.10.3. Supply power connection as per Section 1.3.2. The power switch is placed in the “ON” position. 120 VAC 1.6 – Warranty power is supplied to the control transformer. 24 VAC is ... -
Page 8: Mechanical Environment
Do not attempt to pry any panel off. freezing exists, the following precautionary measures must be taken: If applicable, the Normally-Open dry contacts in the low water Shut off gas supply cut-off (LWCO) are to be wired into the appropriate terminals on ... -
Page 9: Condensate Removal And Treatment
Table 1: Clearances From Combustibles connections, circulating pump, bypass piping and other auxiliary equipment, as well as the appliance. All Models 2.5 – Condensate Removal and Treatment 0" 6" Top/Rear Front (0cm) (15cm) This high efficiency appliance operates in a condensing mode due to the low temperatures of incoming water supply. -
Page 10: Part 3 - Venting & Combustion Air
Part 3 – Venting & Combustion vent manufacturers specifications. When a positive vent system is disconnected for any reason, the flue must be reassembled and resealed according to the vent manufacturer’s instructions. Do not use an existing chimney as a raceway if another appliance or fireplace is vented through the chimney. -
Page 11: Cat Ii Venting
condensate cannot be drained outside, a horizontal drain section knowledge of accurate operating parameters. Approval of the installation is at the discretion of the authority having jurisdiction. should be installed in the venting before penetrating the sidewall. Acceptable Breech Pressure The water heater connects directly to a vertical vent run and does For CAT. -
Page 12: Venting Materials
3.1.5 – Venting Materials and sealed to provide a dead air space around the liner contained within. Single wall venting is typically acceptable for the liner, but When selecting vent material take into consideration that any portion of the vent located outside of the masonry chimney appliances installed near a corrosive or potentially corrosive air raceway should be double wall design. -
Page 13: Combined Combustion Air Supply
The installed length of the sidewall or vertical combustion air inlet One opening must terminate within twelve inches of the top, and one opening must terminate within twelve inches pipe, from the appliance to the inlet terminal outside of the of the bottom of the room. -
Page 14: Installation And Termination
o The equipment shall have clearances of at least 1 inch point of the air inlet pipe and turned horizontal; the second from the sides and back and 6 inches from the front of the 90° elbow is screened and is installed on the horizontal appliance. -
Page 15: Sidewall Configuration Guidelines
hazardous levels of carbon monoxide in the flue products. This will cause operational problems with the appliance and if left uncorrected, will lead to conditions that can cause personal injury or death. Clearances: o The vent terminal shall terminate at least 3 ft. (1M) above any forced air inlet within 10 ft. - Page 16 Concentric 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 Clearances...
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Page 17: Sidewall Clearance Specifications
3.3.3 – Sidewall Clearance Specifications Direct Vent Terminal Clearances Canadian Installations US Installations 12” (30 cm) 12” (30 cm) Clearance above grade, veranda, porch, deck, or balcony 12” (15 cm) for appliances 9” (23 cm) for appliances <100,000 Btuh (30kW) <50,000 Btuh (15kW) Clearance to window or door that may be opened 36”... -
Page 18: Removal Of Existing Appliance (If Applicable)
3.4 – Removal of Existing Appliance (If Applicable) When an existing appliance is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it. At the time of removal of an existing appliance, the following steps must be followed with each appliance remaining connected to the common venting system placed in operation, while the other... -
Page 19: Part 4 - Gas And Combustion Hardware
Part 4 – Gas and Combustion valve must be disconnected from the supply piping when pressure testing the gas supply piping at pressures above ½ PSI. Hardware Table 4: Gas Supply Pressure Range Verify that the appliance is supplied with the type of gas specified Pressure Range Propane Natural Gas... -
Page 20: Gas Pressure Switches
VT299 to VT399 – Negative Pressure Control Valve 4.5 – Air Pressure Switches 4.5.1 – Blocked Flue Switch Low-fire air gas ratio adjustment (use Torx 40 All models use a normally closed blocked flue switch to shut for adjustment clockwise down the appliance under the following conditions: increases CO ... -
Page 21: Ignition System
There is a unique burner for each model. Burners may not be interchanged between different input models. 4.8 – Ignition System 4.8.1 – Hot Surface Igniter (Glow Bar) The silicon carbide igniter is inserted directly through the fan flange and held in place by two screws. A hold down bracket as well as sealing gasket above and below the igniter assures a good seal. -
Page 22: Part 5 - Water
Part 5 – Water pump differential to add pressure to the system, enhancing system performance. 5.1 – Installation Guidelines 5.2 – Connecting to the Tank The Tank is comprised of vertical tubes welded directly into a All water connections are FNPT fittings. For ease of service, stainless steel combustion chamber. -
Page 23: High Limit
ITT LWCO - Electrical Connections 5.3.2 – High Limit A high limit aqua-stat control is located at the back of the appliance and the control bulb is installed in a dry well in the heat exchanger header outlet. The setting of this control limits maximum discharge water temperature. -
Page 24: Part 6 - Electrical
Part 6 – Electrical Each appliance has one ignition module, one hot surface igniter and one flame sensor. These parts are not repairable, a faulty ignition module or hot surface ignitor MUST be replaced with a *** See electrical schematics in Appendix B *** new factory part. -
Page 25: Part 7 - Vtech Control Panel
Part 7 – VTech Control Panel On-Screen Control Navigation Buttons Button Description The appliance is provided with a control panel at the front. Operating controls are installed inside the control box and are accessible behind the front enclosure. Diagnostic information, To toggle parameters setpoint and operational controls, as well as the on/off switch are all accessible with the cover in place. -
Page 26: Manual Reset Codes
See section 10.8 – Troubleshooting for more information on the 7.3.2 – Automatic Reset Codes reset codes below, and what action is required when these conditions are encountered. Description None 7.3.1 – Manual Reset Codes Burner switch turned OFF Message Description Burner switch turned ON CHECK PIM/BTC II... -
Page 27: Control Menus
7.4 – Control Menus 7.4.1 – View Menu (Read-Only) Menu Description The standard home screen of the VTech is the VIEW MENU, which allows TARGET easy review of the current operating condition. The standard screen ---- displayed is the current TARGET SETPOINT. Operational status (i.e. IDLE “IDLE”) is also displayed. -
Page 28: Setup Menu
7.4.2 – Setup Menu Menu Description SETUP MENU The SETUP MENU allows adjustment of basic operating parameters. The setpoint is adjustable to the user at this level. Level Parameters - Adjustable SETPOINT SETPOINT – This is the desired setpoint. tank USER Default –... -
Page 29: Time Menu
FLUE LOW FLUE LOW – Lowest recorded flue gas temperature. USER FLUE HIGH FLUE HIGH – Highest recorded flue gas temperature. USER TANK TOP TANK TOP LOW – Lowest recorded temperature at the tank top sensor. USER TANK TOP TANK TOP HIGH – Highest recorded temperature at the tank top sensor. USER TANK BOT TANK BOTTOM LOW –... -
Page 30: Toolbox Menu
SET DATE SET DATE – Set current date, including month, day and year. USER DST – Enable or disable daylight savings time. USER TIME DISP TIME DISP – Adjust to display the current time in either a 12 or 24 hour 12hr USER format. -
Page 31: Source Menu
7.4.6 – Source Menu Menu Description SOURCE The SOURCE MENU allows adjustment and viewing of more advanced MENU operaitonal parameters. This level is restricted to the installer and requires a code to access. Level Parameters - Adjustable ENABLE ENABLE – Enable or disable the unit while it is powered. Default setting is INST enabled. - Page 32 BLOW PRET BLOW PRET – READ ONLY – Duraiton of the blower pre-purge cycle. 0:05 INST Default: 5 seconds BLOW PRER BLOW PRER – READ ONLY – Blower modulaiton rate during pre-purge. INST Default: 50% BLOW POST BLOW POST – READ ONLY – Duraiton of the blower post-purge cycle. 0:30 INST Default 30 seconds...
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Page 33: Manual Override Menu
ID CARD ID CARD – READ ONLY – Not used, for factory use only. INST SOFTWARE SOFTWARE ID – READ ONLY – Not used, for factory use only. INST ERROR ERROR CODE – READ ONLY – Current error code, if in lockout condition. INST 7.4.7 –... -
Page 34: Part 8 - Commissioning/Start-Up
is being purged from the piping, to require several attempts Part 8 – Commissioning/Start-up before successful ignition. This may require clearing a lockout for failed ignition. Continued ignition failures may indicate 8.1 – Checking the Installation a problem with the gas supply. ... -
Page 35: Adjust High Fire Setting
Increase CO Decrease CO Press the “ ” button on the control screen. Press [Test] and press High Fire Select [Forced Rate] and Press Adjustmentt Select [Set Low Fire] Counter-Clockwise Clockwise Once the water heater has run for at least 10-15 minutes at low fire, with the coldest possible water, the condensate in ... -
Page 36: Part 9 - Service/Maintenance
CO , CO and flue pressure according to and remove the fan assembly. On occasion the red CAMUS Hydronics recommendation. silicone gasket may adhere to the underside of the fan’s CAUTION flange. Carefully pry the flange away from the gasket before removing the fan assembly. -
Page 37: Check The Condensate Neutralizer -6 Months
should be drained if being shut down during freezing CAUTION temperatures. Never use a pressure washer to clean the burner 9.7 – Complete the Service The burner may best be cleaned by immersing the burner port area in a solution of dishwashing detergent and hot water. ... -
Page 38: Flow Diagrams
• Verify that all air has been purged from gas line. • Inspect hot surface igniter and related wiring for damage and connection errors. • Verify igniter is glowing and draws at least 3.0A. • Inspect flame sensor and associated wiring. Replace if necessary. •... - Page 39 This type of failure indicates a flame rectification signal issue through the flame rod. Fasten flame sensor plug securely to flame Is Flame sensor plug sensor wire and check for corrosion deposits at secure? wire terminals Check continuity of flame Replace sensor wire since corrosion can affect sensor wire from flame the perceived flame signal significantly and...
- Page 40 Fault = “STACK LIMIT EXCEEDED” A flue gas error occurs when the stack temperature has exceeded the maximum limit allowed by the vent material. This is an automatic reset error, when the stack temperature drops 20 F below the limit allowed the water heater is allowed to restart and an ignition attempt is made if the call for heat is not yet satisfied.
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Page 41: Appendix A - Electrical Schematics
Appendix A – Electrical Schematics... -
Page 42: Appendix B - Parts - Exploded View
Appendix B – Parts – Exploded View... - Page 43 Appendix B – Controls Figure A: Control Board Figure B: Front Cover Assembly...
- Page 44 Appendix B – Gas Train Figure C: Gas Train Figure D: Circulator Assembly...
- Page 45 Appendix B – Parts – Exploded View Part Description Part Number Plastic Top Cover 019-02304-000 Plastic Front Cover assembly c/w 019-02305-000 1/4-Turn Latch & Mounting Hooks VT Top Cover Knob 120-00275-000 813-02796-000 813-02795-000 813-02794-000 813-02793-000 813-02805-000 813-02806-000 Venturi (Manifold) 813-02807-000 813-02808-000 813-02809-000 Air Inlet Adapter w/ Pressure Test...
- Page 46 Part Description Part Number 829-01561-000 829-01562-000 VTech Burner w/ Burner Flange 829-01563-000 829-01565-000 Neoprene Blower Gasket Red Silicone Rubber Gasket 853-02527-000 Graphite Backed White Ceramic 853-02525-000 Gasket Graphite Gasket 853-02526-000 832-18300-000 Gas Valve Harness 858-11559-000 VTech Wire Harness 826-00500-000 857-04406-001 857-04405-001 VT Circulator Piping Assembly 857-04404-001...
- Page 47 NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________...
- Page 48 Replace any water heater without prior receipt of actual rating plate from the appliance. HOW TO MAKE A CLAIM Any claim under this warranty shall be made directly to CAMUS Hydronics Limited Representative in your area. Please visit our website at www.camus- and use our “Rep Finder”...
- Page 49 CAMUS Hydronics is a manufacturer of replacement parts for most copper finned and stainless steel water heaters and heating 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 &...
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