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Summary of Contents for Laars duraflow
- Page 1 Installation and Operation Instructions Document 2110A Installation and Operation Instructions for DuraFlow Water Heater A subsidiary of BRADFORD WHITE Corporation...
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Page 2: Table Of Contents
LAARS Heating Systems Company Page 2 TABLE OF CONTENTS SECTION 1. SECTION 2. General Information Remote Bulb Aquastat Controller Introduction ........... 3 Application ............ 5 Piping ............3 Installation ............ 5 Wiring ............5 2B-1. Mounting with Boiler Fitting ......5 2B-2. -
Page 3: General Information
When utilized as both a buffer and a domestic single hydronic heating system, it serves as the heat water indirect, the DuraFlow is piped to the heating exchanger source for single or multi tank domestic system supply and return headers or as the bypass on water storage. - Page 4 LAARS Heating Systems Company Page 4 Figure 3. Piped as Buffer and Indirect. ZONE THERMOSTATS DURAFLOW WATER HEATER AQUASTAT TRANSFORMER RELAY ZONE VALVES DISCONNECT SWITCH NOTE: Pump Operates From MASS Terminals On Boiler Aquastat. BOILER TERMINALS Figure 4. Zoning with Valves.
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Page 5: Wiring
DuraFlow Water Heater Page 5 SECTION 2. 1C. Wiring Wire relay (see Figure 4) to reverse acting Remote Bulb Aquastat Controller aquastat (supplied) to start boiler and system pump. For maximum domestic water capacity, aquastat must 2A. Application be wired in priority (as shown) or utilize multiple zone This remote bulb, immersion-type controller relay with priority. -
Page 6: Adjustments
LAARS Heating Systems Company Page 6 2C. Adjustments Set the differential to correspond with the boiler manufacturer recommendations. To adjust models with adjustable differential, rotate the wheel on the back of the snap switch until the desired reading is aligned with the V notch in the frame. The wheel provides an adjustment from 5 to 30 degrees (F). - Page 7 DuraFlow Water Heater Page 7...
- Page 8 Laars requires all alleged defective part(s) be returned through trade channels and replacement part(s) will, if warranty conditions are met, be provided by Laars through the wholesaler. In this case, the cost of shipment to Laars is borne by the customer.