Laars JVS, Installation And Operation Instructions Manual

Page 1: ...ed by a qualified installer service agency or gas supplier AVERTISSEMENT Assurez vous de bien suivres les instructions donn es dans cette notice pour r duire au minimum le risque d incendie ou d explo...

Page 2: ...s Piping 12 5 2 Alternate Auto Bypass Operation 12 5 3 Flow Requirements 15 5 4 Chilled Water Systems 16 5 5 Oxygen Permeable Systems 16 5 6 Anti Freeze 16 SECTION 6 Electrical 6 1 General Information...

Page 3: ...and Standards The JV Hydronic Boiler or Mini Therm II is design certified by CSA Canadian Standards Association as complying with the latest edition of the Standard for Gas Fired Low Pressure Steam a...

Page 4: ...Diameter 225 7 Diameter 11 Electrical Supply 115 Volts AC 12 Modification of Boiler for High Altitude Mini Therm II Boilers are normally shipped from the factory in the low altitude sea level operati...

Page 5: ...rovide at least six inches clearance between the automatic vent damper and combustible construction and be sure to allow access for servicing the damper 6 Install the temperature pressure gauge provid...

Page 6: ...ater by at least 12 inches 305mm in all directions The masonry must be laid with ends unsealed and joints matched to provide free circulation of air from side to side through the masonry see Figure 4...

Page 7: ...afe boiler operation AVERTISSEMENT N entrepposer aucun produit chimique produit nettoyant ou produit corrosif proximit des bouches d air de combustion ou dans la pi ce viter de placer des tuyaux de ve...

Page 8: ...ing system This can create a health hazard by spilling flue products into the boiler room Use engineered venting tables acceptable to the authority having jurisdiction to size the venting pipe or line...

Page 9: ...instrumentation of this boiler replaces an older boiler in a common vent system with other appliances or if you remove additional appliances from the common vent all the appliances must be checked fo...

Page 10: ...the figures in Table 4 to size the gas inlet piping from the gas meter to the heater Check all local codes for compliance before installing the heater flame of a match or candle or smoke from a cigar...

Page 11: ...ahead of the gas controls see Figure 5 Fit the trap with a threaded cap which can be removed for cleaning 5 Install a manual gas shutoff valve for service and safety Do not use a restrictive gas cock...

Page 12: ...40 F see Figure 6 Contact the factory for more information SECTION 5 Water Connections 5 1 Water Piping Figure 6 shows typical plumbing installations Be sure to provide unions and isolation valves at...

Page 13: ...ary Piping with Field Balancing for Fixed Low Return Temperatures JV Pump Isolation Valve Isolation Valve Balancing Valve Balancing Valve Pump From System To System Tempering Valve with System Loop an...

Page 14: ...R Air Scoop JV Boiler Bypass Valve Ball Valve Zone Pump Purge System Optional Pump Location Feed Water Inlet Air Cushion Type Expansion Tank Optional Feed Water Inlet System Loop Expansion Tank Pump A...

Page 15: ...is manual Figure 7 By pass Piping Balancing Valve or optional thermostatic union Laars P N 2400 030 Primary Secondary only To System From System In Return Out Supply Drip Leg Left Side View A full siz...

Page 16: ...iquetez tous les fils avant de les d brancher Des erreurs de c blage peuvent entra ner un fonctionnement inad quat et dangereux 6 1 General Information Wiring connections must be made exactly as shown...

Page 17: ...GR 24V TH W MV SPARK 1 2 3 4 5 6 7 8 9 REMOTE FLAME SENSOR HIGH ALTITUDE OPTIONAL Figure 9a Wiring Diagram Spark Ignition System JVS 50 75 Switch Safety Roll Out Blocked Vent Safety Switch Space Heat...

Page 18: ...LAARS Heating Systems Page 18 Figure 9c Wiring Diagram Standing Pilot System JVT Figure 9d Schematic Standing Pilot System JVT...

Page 19: ...WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH APPLIANCE WIRING MATERIAL SUITABLE FOR 105 DEGREES C OR ITS EQUIVALENT 1 2 3 4 5 6 THE BOILER WILL NOT OPERATE WITHOUT THE AUTOMATIC VENT...

Page 20: ...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 21: ...6 4 2 Heat Anticipator For single zone installations the wall thermostat heat anticipator should be set at 0 5 amperes For multi zone installations have a qualified electrical technician make the nece...

Page 22: ...on tanks require visual inspection of liquid level If necessary inspect the liquid level in the expansion tank With the system full of water and under normal operating pressure to ensure proper water...

Page 23: ...Read and follow all safety instructions first A more detailed set of lighting and shutdown instructions are listed on the label located on the boiler NOTE If your boiler is configured to operate on LP...

Page 24: ...your building a 3 Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions a 4 If you cannot reach your gas supplier call the fire department All Models 4 Shu...

Page 25: ...xide in flue gases which could result in severe injury or death AVERTISSEMENT Une installation ou un entretien inad quat peut causer la naus e ou l asphyxie en raison du monoxyde de carbone pr sent da...

Page 26: ...the safety of the equipment depends on their proper functioning It is strongly recommended that the basic items listed below be inspected by a qualified service technician every year a Water temperat...

Page 27: ...ated in the draft diverter opening on the rear of the boiler 7 Rollout Switch JVS and JVT boilers are equipped with a manual reset rollout switch designed to shut the boiler down in the event a flame...

Page 28: ...oisy A Air in volute A Bleed air from volute Check pump alignment B Worn coupling or bearings B Replace worn parts 8 Boiler pounding A Too low water flow through boiler A Check temperature rise betwee...

Page 29: ...wire Clean flame rod Check electrical connections between flame rod and module Check for cracked ceramic flame rod insulator Check that pilot flame covers flame rod and is steady and blue Adjust pilo...

Page 30: ...hermocouple may be defective 11 There are two tests necessary to make sure the problem is not in the pilot thermocouple The first test can be performed by unscrewing the compression fitting on the gas...

Page 31: ...section of piping which connects the boiler return and supply with the branch es Also known as a main or header Should be same size as boiler inlet outlet connections Vent Damper optional in Canada S...

Page 32: ...2900 L0032900 L0032900 L0032900 L0032900 L0032900 L0032900 L0032900 L0032900 Gas Manifold L0052601 L0052601 L0052602 L0052602 L0052603 L0052603 L0052604 L0052604 L0052605 L0052605 L0052606 L0052606 El...

Page 33: ...4 20034905 20034905 20034906 20034906 Access Panel HX L R 10535900 10535900 10535900 10535900 10535900 10535900 10535900 10535900 10535900 10535900 10535900 10535900 Base Control Box 20086800 20086800...

Page 34: ...4 Hold 1 7 8 Hold Aquastat Bulb Cover Control Box Temperature Pressure Gauge Jacket One Piece Wraparound A B C A Inlet Pipe B 4 1 2 x3 4 Pipe C Outlet Pipe Gas Valve Flame Roll Out Safety Switch Burn...

Page 35: ...Mini Therm II Hydronic Boiler Page 35...

Page 36: ...x 800 559 1583 Customer Service Service Advisors 20 Industrial Way Rochester NH 03867 603 335 6300 Fax 603 335 3355 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 ww...