Warning improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency, gas supplier, or call the factory. Installation and operation instructions ...
Page 2 laars heating systems table of contents section 1. General information 1a. Hazards and your safety — hot water can scald! ................................... 3 section 2. Installation ................................................. 3 2a. Location ...............................................
Mini-combo id page 3 section 1. General information warning this manual supplies information on the application, installation and operation of the indirect water heater unit. A complete instruction manual of the operation of the hydronic boiler (document 1080) is supplied along with this manual. Bot...
Page 4 laars heating systems b o ile r s pace h eating - r efer to d ocum ent 108 0 ta n k figure 3. Piping schematic. Cold water supply hot water supply m in i-c o m b o ta n k c o ld w ate r in let s h u t o ff va lve e x pa n s io n ta n k u n io n c h ec k va lve o r b a ck-f lo w p reve nte r f...
Mini-combo id page 5 persons. Attach run-off tube to t&p valve and run tube within 6" (152mm) from floor. No reducing couplings, valves, or any other type of restriction is to be installed in this line. This run- off tube must be installed to allow free and complete drainage of both valve and run-of...
Page 6 laars heating systems figure 6. Wiring diagram. Warning electrical shock can cause severe personal injury or death. Disconnect power supply to the boiler before doing any electrical work. Electrical connection (see figures 5 and 6). 1. Remove the two screws attaching the front cover of the co...
Mini-combo id page 7 figure 7. Sequence of operation. 115 volts supply transformer tank stat (common) domestic demand (n.C.) heating demand (n.O.) tank pump (energized) high limit switch inducer energized fan proving switch heating pump (energized) flame roll-out safety switch main gas valve (energi...
Page 8 laars heating systems figure 8. Parts identification..
Mini-combo id page 9 # qty part # description 1 1 20085700 weldment, panel, base 2 1 20085600 weldment, panel, top 3 1 20086300 weldment, panel, door 4 1 20086400 panel, side, right 5 1 20127900 weldment, panel, side, left 6 1 20085900 panel, rear 7 1 20086500 panel, access 8 1 20084000 bracket, mou...
Page 10 laars heating systems.
Mini-combo id page 11.
H2100200b waterpik technologies, inc. 6000 condor drive, moorpark, 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.Laars.Com litho in ...
