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Laars
OEM Replacement Parts
CSI CONSERVATION SYSTEMS INC 407.351.9121    CONTACT    BACK    HOME
 
Laars Mark II H Series H HW HP Hot Water Boiler
150 MBH to 250 MBH
Please call (407) 351-9121 or send a message for applicability, availability and pricing. Before contacting CSI, please write down your unit's complete model and serial number to help us identify the correct OEM replacement part(s) you require. An asterisk (*) indicates a part we normally keep on hand. Other OEM parts available by special order. Please read our Terms of Sale notice carefully before placing an order.

Installation, Operation & Maintenance Manual
 
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| Combustion System | Electrical System | Hydronic System | Vent System |

Combustion System
2400-046 Igniter with Gaskets
2400-040 Flame Holder Assembly with Gaskets
2400-002 Blower Assembly with Gaskets
2400-032
2400-033
2400-222
Combustion Chamber Coil Assembly (before s/n X91-1318)
Combustion Chamber Coil Assembly (HW-M2) (after s/n X91-1319)
Combustion Chamber Coil Assembly [H(P)-M2]
2400-014 Gas Valve
2400-038
2400-052
1-428
2400-026
2400-028
1-236
1-458
2400-003
Top Dome for Combustion Chamber
Insulation for Combustion Chamber (top)
Insulation Retainer
Gas Balance Line
Bleed Line (H/HP)
Blower Intake Duct Assembly
Air Duct Hose
Plastic Impeller Fan
1-252 Orifice Union
2400-320 Gasket Kit (includes Blower Gasket, Flame Holder Gasket and Igniter Gasket)
2400-001
2400-042
Blower Gasket
Igniter Gasket
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Electrical System
2400-012
2400-224
Control Board (before s/n X91-1319)
Control Board (after s/n X91-1318)
2400-022
2400-024
High-Limit Safety Switch (215°F)
High-Limit Safety Switch (240°F) (For high altitude applications.)
2400-016
2400-226
Low-Limit Safety Switch (pre-M2)
Low-Limit Safety Switch (strap-on for all HW-M2 units)
2400-018
2400-056
2400-057
Operating Control (strap-on) (after s/n X84-001 or X91-1318)
Operating Control (210°F) (HW-M2) (after s/n X91-1318)
Operating Control (185°F) (H-M2 or HP-M2)
2400-010 Relay (HW-M2 Series Only)
2400-110
2400-106
2400-228
2400-020
2400-008
2400-010
1-506
2400-062
2400-006
Stack Switch
Pressure Differential Switch
Pressure Switch (M2) (after s/n X91-1318)
Thermal Cut Out (after s/n X84-001 or X91-1318)
R-1 Relay (before s/n X91-1319)
R-2/R-3 Relay (Functions as the R-1 relay after s/n X91-1318.)
Power Switch (120V)
Time Delay Relay (H/HP)
Transformer
1-314
5-060
Wiring Harness (HW-M2)
Wiring Harness (H-M2)
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Hydronic System
2400-004
2400-005
Water Pump with Gaskets (Grundfos)
Water Pump with Gaskets
2400-036
2400-234
DHW Coil with Gaskets (Single Wall)
DHW Coil with Gaskets (Double Wall)
2400-114
2400-112
Water Pressure/Temperature Gauge
Water Pressure Relief Valve
2400-030 Thermostat (H-M2 Only)
1-126
1-036
Water Pump Gaskets
DHW Coil Gaskets
2400-034
2400-238
2400-240
2400-242
Single-Wall Transfer Tank (Less Coil)
Stainless Steel Transfer Tank (Less Coil)
Single-Wall Transfer Tank & Coil Assembly
Stainless Steel Transfer Tank & Coil Assembly
2400-029
2400-030
Thermostat and O-Ring
Thermostatic Union Assembly (H & HP Only)
1-164
1-278
Boiler Discharge Fitting
Boiler Discharge Tube
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Vent System
2400-328 Fixed Height Kit (provides all of the required venting materials for appliance installations which may have a fixed height of 11 inches and an adjustable horizontal run of 2' to 4')
2400-326 Adjustable Height Kit (for installations that require adjustable height and vertical run, kit provides vertical and horizontal lengths of pipe from 2' to 3½')
2400-332
2400-334
2400-336
Vent Intake Pipe 5" (1')
Vent Intake Pipe 5" (2')
Adjustable Vent Intake Pipe 5" (2' to 3½')
2400-346
2400-348
2400-354
1st 90° Elbow 3" (female/female)
2nd 90° Elbow 3" (male/male)
45° Elbow 3"
2400-338
2400-364
2400-340
2400-342
2400-344
Vent Exhaust Pipe 3" (1')
Vent Exhaust Pipe 3" (2')
Vent Exhaust Pipe 3" (3')
Adjustable Vent Exhaust Pipe 3" (2' to 3½')
Adjustable Vent Exhaust Pipe with Terminal 3" (2' to 3½')
2400-347
2400-349
2400-356
1st 90° Elbow 5" (male/male)
2nd 90° Elbow 5" (female/female)
45° Elbow 5"
2400-330 2nd Elbow Set 3"/5" (male/female)
(includes 3" and 5" elbows)
2400-277
2400-278
2400-370
Vent Terminal Cap (5" straight thru)
Vent Terminal Extension
Rain Hat for Vertical Venting 3"
2400-350
2400-352
Flue Adapter 3" (includes 2400-342 Adjustable Vent Exhaust Pipe)
Flue Adapter 3" (8½" long)
2400-358
2400-362
2400-372
2400-304
2400-280
2400-281
2400-324
2400-282
Condensate Drain
Fresh Air Tee
Alternate Vent Clamp
3" Spring Support
Steel Wall Flange 5"
Rubber Wall Flange 5"
Aluminum Tape (2" wide x 3' long)
Silicone Sealant (1 oz tube)
2400-326
2400-328
Carton of B Direct Vent (Standard)
Carton of B Direct Vent (Alternative)
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Please call (407) 351-9121 or send a message for applicability, availability and pricing. Before contacting CSI, please write down your unit's complete model and serial number to help us identify the correct OEM replacement part(s) you require. An asterisk (*) indicates a part we normally keep on hand. Other OEM parts available by special order. Please read our Terms of Sale notice carefully before placing an order.

Installation, Operation & Maintenance Manual
 
Return to the Parts Menu
Specifications subject to change without notice.
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