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Summary of Contents for First Aquatherm Series
- Page 1 Aquatherm ® ® NSTALLATION AND PPLICATION ANUAL ® QUATHERM OMBO EATERS FIRST CO. - P.O. BOX 270969 - DALLAS, TEXAS 75227 - Ph. (214) 388-5751 - Fax (214) 388-2255 - www.firstco.com...
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Page 2: Table Of Contents
Table of Contents Page Introduction Sequence of Operation General Description: Air handler cabinet Heating and cooling coils Add-on hot water coil Circulating pump Flow control module Check valve Air purge valve Blower door safety switch Water heater Boiler Accessories: Thermostat Freeze protector Equipment Sizing: Condensing unit... -
Page 3: Sequence Of Operation
The Aquatherm® is a First Co. air handler that converts a properly sized gas or oil-fired water heater Add - on hot water coil: First Co. HWC series add-on into a highly efficient, dual - purpose appliance that hot water coils are designed to be installed in either... -
Page 4: Air Purge Valve
- up. When the air handler and water the fan motor will not come on when the thermostat heater are piped according to First Co. instructions, calls for heat. the air in the hot water coil and piping will only need Normal heat anticipator setting should be 0.3 to 0.4. -
Page 5: Water Heater
ume sizing guide is satisfactory in most parts of the each component of the system and should also be country: (minimum requirements) followed in detail. 1.5 and 2 ton air handlers = minimum 40 gallon Duct work: The return air duct must have the same 2.5 and 3 ton air handlers = minimum 50 gallon free area as the opening provided on the air handler. -
Page 6: Water Piping
(See figures 3, 4, 5, 14 and 15 for typical wiring This insures that any air in the water heater will diagrams.) bypass the heating loop and then be purged each Water piping: time hot water is used in the dwelling. If this pip- 1. -
Page 7: Multiple Water Heaters
heater. This problem is a direct result of the back 4. Purge the air handler’s hot water coil and lines: The flow preventer ..not the heating system. An following procedure allows the use of city water expansion tank may need to be installed to solve this pressure to purge the air handler hot water coil and problem. - Page 8 Conventional Piping Diagram FIGURE 8 Side Tap (4 Pipe) Water Heater Piping FIGURE 9...
- Page 9 FIGURE 10...
- Page 10 Zone Valves Install a motorized valve with each air handler to control flow to that zone as required. FIGURE 11 TYPICAL WIRING SCHEMATIC FOR MULTIPLE ZONE CONNECTIONS WITH ZONE VALVES 24 VOLT 24 VOLT 4 CONDUCTOR CLASS 2 WIRING CLASS 2 WIRING CLASS 2 WIRING HBXB-HW HBXB-HW...
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Page 11: Troubleshooting
Pump does not run: These pumps may sometimes First Co. “stick” due to non - use and fail to start. Before replacing Note: Some water heaters come with a normally pump: closed spring-loaded check valve factory installed 1. - Page 12 Catalog No. IAM1010 (Replaces IAM309)
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what are the dimensions of the cooling coil