Laars Horizon - Installation, Operation and Maintenance User Manual

Installation, Operation and Maintenance Instructions Document 1104BInstallation,Operation andMaintenanceInstructions forHorizonOil Fired BoilerFOR YOU

Page 10LAARS Heating Systems CompanyFigure 7.Wiring Arrangement for HC BoilerControlling Operation of Boiler and CirculatorPower supply provides disco

HorizonPage 11SECTION 3.Part NumbersPart Number Description Size57-002 Boiler Body... 100/12557-072 Inspection Cover Assem

57-207B800.900.9276 • Fax 800.559.1583 (Customer Service, Service Advisors)20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.3355186

Page 2LAARS Heating Systems CompanyTABLE OF CONTENTSSECTION 1.General Information1A. Freight Claims ... 31B

HorizonPage 3SECTION 1.General Information1A. Freight ClaimsInspection should be made of boiler andcomponents for damage upon arrival. Any claims ford

Page 4LAARS Heating Systems Company1L. OilUse only No. 2 Heating Oil. Do not use gasoline,crankcase draining or any oil containing gasoline.1M. Oil St

HorizonPage 52D. Maintenance of the Tankless CoilAfter several years of use, the water flowthrough the coil may become restricted by mineraldeposits f

Page 6LAARS Heating Systems CompanyFigure 2.1. FIT FRONT PANEL (1)2. ATTACH SIDE PANELS (2) AND (3) TOBOTTOM OF BOILER AND FRONTPANEL3. FIX REAR PANEL

HorizonPage 7Tapping NPTTankless Coil ¾"Tridicator ¼"Hydronic Return 1¼"Hydronic Supply 1¼"Aquastat Well ¾"Relief Valve Fitti

Page 8LAARS Heating Systems CompanyFigure 4.Dimensions REF HC 100 HC 125 HC 145 HC 175 HC 205 HC 240 HC 270 HC 300Jacket Height A 39" 39" 42

HorizonPage 9PIPE LENGTHS"H"One Pipe Gravity System3/8" O.D. 1/2" O.D.ft ft ft01½ 33 653 65 1305 130 2606½ 195 325PIPE LENGTHS&quo