FRT665R

FRT665R
Hot Water Generation – Steam/Water Single Wall
Flo-Rite-Temp® Steam/Water Shell and Tube Heat Exchanger Pre-Piped Recirculating
Single Temperature
Model FRT665R
Flo-Rite-Temp instantaneous water heater assembly for recirculating
hot water systems. Flo-Rite-Temp pre-piped single temperature
systems offer three heat exchanger options fully assembled
and include: steam trap, air vent, thermometer, Clean-In-Place
connection ports, vacuum breaker, diverting valve, and isolation
valves.
Operational Specifications
• +/-4°F water temperature control at points of use 25’
downstream during demand
• Feed-forward control utilizing pressure sensitive fail safe (cold)
control valve
• Straight admiralty brass tube bundle with removable floating
end cover for mechanical cleaning
• Utilizes constant low pressure steam to assure positive
condensate drainage of exchanger
• Only 5 connections required: steam, condensate, cold water,
recirculation return, and mixed water out
95.6±2.0
(2428±51)
Technical Specifications
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Maximum steam pressure: 15 PSIG
Maximum domestic pressure: 150 PSI
Maximum designed water side pressure drop: 10 PSI
Design conditions: Domestic-63 GPM at 100°F delta T using
15 PSIG steam
Complete assembly Lead Free Compliant
All domestic side valve fittings and isolation valves, strainers,
thermostatic diverting valve, inlet check valves, inlet and
system blend thermometers pre-piped.
Clean-In-Place connections for chemically cleaning of control
valve and heat exchanger without disassembly of the Flo-RiteTemp
Heat exchanger tubes shall be straight 5/8” OD admiralty brass
expanded into Navel Brass tube sheets with a free floating
bolted end cover
Water pipe of type L copper
Fabricated carbon steel frame with machine grade enamel
paint
Standard Materials of Construction
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Control Valve: Lead Free Bronze
Water pipe: Type L Copper
Fittings: Lead Free Brass/Bronze
Tube bundle: Admiralty Brass tubes expanded into Navel Brass
tube sheets
Heat Exchanger Shell: Carbon Steel
Steam Trap: Model 814 Cast Iron
Air Vent: Model TS-2 angle-pattern-bronze
Vacuum Breaker: Brass
Thremostatic Diverting Valve: Lead Free Bronze
48.5±2.0
(1233±51)
30.0
(762)
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
Armstrong Hot Water Group, 221 Armstrong Blvd., Three Rivers, MI 49093 – USA Phone: 269-279-3602, Fax: 269-279-3130
armstronginternational.com
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