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Hastings Industries Inc.
Cooling/Heating Systems
Cooling/Heating Systems - Page 11
Cooling/Heating Systems
 SBDYR "YEAR-ROUND" MAKE-UP AIR SYSTEMS Model SBDYR serves the same make-up air function as the YR-RYR system with direct gas-fired heating replacing indirect gas-fired furnaces. The YR-RYR system concept of "year round" modulated discharge air control is retained with the SBDYR. A supplementary cooling thermostat is also included. A matching SB coil section, with cooling coil, is added upstream of the SBD direct gas-fired burner section. This results in a "draw-thru" air system with discharge air reheat control. Space over-riding heating and cooling temperature control is available as an add option. The model SBD direct gas-fired make-up air system is detailed in Hastings Bulletin SBD-1. SBEYR "YEAR-ROUND" MAKE-UP AIR SYSTEMS As with the SBDYR, model SBEYR also serves the same makeup air function as the YR-RYR system with UL listed electric heater replacing indirect gas-fired furnaces. The SBEM makeup air operating sequence is furnished to retain the YR-RYR system concept of "year-round" modulated discharge air control. A supplementary cooling thermostat is also included, In the case of the SBEYR, a matching SB coil section, with cooling coil, is added upstream of the SBE electric heater section. This arrangement also results in a "draw-thru" air system with discharge air reheat control. Space over-riding heating and cooling temperature control is available as an add option. The model SBEM electric make-up air system is detailed in Hastings Bulletin SBE-1. SBC-SBCH COOLING OR COOLING/HEATING UNITS Model SBC designates a SB series air handling unit with cooling coil. Model SBCH has both a cooling and heating coil with a SB blower section. Matching SB coil sections are available for all SB series ventilating or air handling units detailed in Hastings Bulletin SB-1. Evaporator or chilled water cooling coils and steam or hot water heating coils can either be mounted individually in SB series coil sections, or furnished in series for combination cooling and heating applications. Contact your local Hastings representative for selection and dimensional information. Engineers Specifications Furnish and install the following Hastings ("year-round" make-up air system) (cooling/heating system).
General - the air handling, heating, cooling and filter sections shall be furnished as a factory assembled and wired system for (rooftop) (indoor suspended) (indoor platform) mounting with (nat- ural) (propane) gas-fired furnace(s). Air Handling Section - shall have 16 gauge aluminized steel cabinet and 12 gauge aluminized steel base frame channels, fibre glass insulated, with primed and enamel finish. Blower wheels shall be forward curved, double width, double inlet class 1 with permanently lubricated ball bearings and adjustable V belt drive. See Bulletins RHS-1 or IHS-1 for detailed blower section specifications. Heating Section - shall include one or more AGA design certified duct furnaces with (Aluminized steel) (type 409 stainless steel (type 321 stainless steel) heat exchangers and 18 gauge aluminized steel burners having type 430 stainless steel ribbon inserts See Bulletins RD-1 or SD-1 for detailed duct furnace specifications. Note: Type 409 stainless steel heat exchangers are recommended.
Cooling Section - shall include a high performance, energy efficient, aluminum fin, copper tube evaporator coil, with thermal expansion valve, sized to match the specified air cooled condensing unit. Condensate pan and drain connection shall be furnished with the coil section. Filter Section - shall have V-bank frames less filters. Control System - shall be 24 volt with control transformer.
Air Cooled Condensing Unit - as scheduled, shall be mounted outdoors and field connected to the evaporator coil and thermal expansion valve and charged with R-22 refrigerant. All condensing units shall be furnished with standard operating and safety controls. Note: See Bulletin CU-1 for detailed air cooled condensing unit specifications.
Options and Accessories - furnish the following items (select from page 6 of this bulletin). In order to maintain our policy of continuous product improvement, we reserve the right to change prices, specifications, ratings or dimensions without notice or obligation.
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