Laars Mini-Therm JVi JVH, Installation And Operation Instructions Manual

Page 1: ...l is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of t...

Page 2: ...bustion Air Supply 5 1H Venting 6 1H 1 Vertical Venting Category I 7 1H 2 Horizontal Venting Category III 8 1H 3 Common Venting System 9 1I Water Piping of Boiler System 10 1I 1 By Pass Piping 10 1J C...

Page 3: ...elected to provide for correct system design water temperature rise Table 2 details temperature rise and water flow for the Mini Therm boilers SECTION 1 General Information WARNING The JVi induced dra...

Page 4: ...to be installed in a garage all burners and burner ignition devices must have a minimum 18 457mm clearance above the floor 4 The Model JVi 50 through JVi 225 boilers can be installed in a closet as lo...

Page 5: ...the surrounding area as outlined in the latest edition of C B 2 4 6 1 A DRAIN 11 8 298 6 152 7 178 24 610 REF INDUCED DRAFT BLOWER MOTOR PULL OUT GAS MANIFOLD BURNER TRAY TEMP PRESSURE GAUGE TEMPERATU...

Page 6: ...an is used to supply air to the boiler room the installer should make sure it does not create drafts which could cause nuisance shutdowns If a blower is necessary to provide adequate combustion air to...

Page 7: ...ached to it Do not weld the vent pipe to the boiler collar The weight of the stack must not rest on the boiler The boiler top must be easily removable for normal boiler service and inspection Avoid te...

Page 8: ...ing of 400 F 204 C see Table 9 for a list of approved sealing materials Use at least three corrosion resistant screws at each slip joint when required Description Manufacturer Product High Temperature...

Page 9: ...onnected to the common venting system are located and other spaces of the building Turn on clothes dryers and any gas burning appliance not connected to the common venting system Turn bathroom exhaust...

Page 10: ...to expansion and contraction of copper pipe consideration should be given to the type of hangers used Rigid hangers could transmit noise through the system caused by the piping sliding in the hangers...

Page 11: ...Mini Therm JVi Page 11...

Page 12: ...w switch it should be wired in series with the high limit switch The boiler will not fire unless the pump is running and the flow switch is closed Field installed safety devices and operating controll...

Page 13: ...Mini Therm JVi Page 13 Figure 11 Wiring Diagram JVP Figure 10 Wiring Diagram JVH...

Page 14: ...primary secondary pumping Connect to W in lieu of A Boiler relay is used for boiler pump and connection to W will energize boiler pump when any zone is calling for heat Wiring with Taco Zone Valves W...

Page 15: ...ing these instructions Figure 15 Main Burner Pilot Flame Pattern SECTION 2 Operating Procedures Before placing the boiler in operation check and reset the safety shutoff devices Once the boiler is con...

Page 16: ...f water temperature is below the limit setting the inducer motor relay will turn on the draft inducer 4 Pressure switch will sense the fan inducer operation and send 24 volts to the flame rollout swit...

Page 17: ...ll next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any pho...

Page 18: ...ft side of the heater which must be removed to drain that side Both sides must be drained 10 The gas and electric controls on the boiler are engineered for long life and dependable operation but the s...

Page 19: ...on the terminal board and from the orange wire terminal on the pump relay to the W connection on the terminal board If no output is found the connections or the pump relay could be defective 6 Place...

Page 20: ...gh boiler Check temperature rise between inlet and outlet boiler piping 15 F 8 C to 25 F 14 C temperature rise is recommended If temperature rise is over 25 F 14 C increase pipe size or pump capacity...

Page 21: ...ER UNPLUG IGNITER MEASURE VOLTAGE AT TWO BOTTOM TERMINAL OF SV9501 SV9601 24 VAC NOMINAL YES YES YES YES YES NO NO NO YES NO NO NO Troubleshooting Honeywell SV9501 SV9601 Hot Surface Pilot System REPL...

Page 22: ...ked Check electrical connections between module and pilot operator on gas control Check for 24 Vac across PV MV PV terminals on module If voltage is okay replace gas valve if not replace module Check...

Page 23: ...Also known as radiation Isolation Valve Used to isolate the boiler from the circuit It minimizes the amount of water drained from the system Primary Secondary Piping Two or more interconnecting circu...

Page 24: ...032900 L0032900 L0032900 L0032900 L0032900 L0032900 L0032800 L0032800 L0032800 L0032800 L0032800 L0032800 L0032700 L0032700 L0032700 L0032700 L0032700 L0032700 L0052601 L0052601 L0052602 L0052602 L005...

Page 25: ...0032900 L0032900 L0032800 L0032800 L0032800 L0032800 L0032800 L0032800 L0032700 L0032700 L0032800 L0032800 L0032800 L0032800 L0052604 L0052604 LD052605 LD052605 LD052605 LD052605 E0088400 E0088400 E00...

Page 26: ...4 Tee 1 2 Coupling Model 50 100 1 2 Close Nipple Front Panel Insulation Items 13 14 15 and 30 are not shown 18 19 17 24 29 39 42 16 22 21 26 34 2 6 1 11 5 37 4 3 41 40 Rear Panel Insulation 12 36 7 7...

Page 27: ...Mini Therm JVi Page 27...

Page 28: ...CA 93021 805 529 2000 FAX 805 529 5934 20 Industrial Way Rochester NH 03867 603 335 6300 FAX 603 335 3355 480 S Service Road West Oakville Ontario Canada L6K 2H4 905 844 8233 FAX 905 844 2635 www laar...