483760 Edition II II | Page 212

213 | Work SHR 6904 Commercial Heat Recovery Ventilators The SHR 6904 Commercial Heat Recovery Ventilation system (HRV) complements today's tight buildings. Fantech Heat Recovery Ventilators (HRV) are designed to supply air into a building while exhausting an equal amount of contaminated air to the outside. The aluminum heat exchange core transfers sensible energy between air steams resulting in tempering of the supply air and reduced loads on the HVAC system. A preset defrost sequence is activated at an outdoor air temperature of 23ºF and lower. During the defrost sequence, the supply blower shuts down & the exhaust blower continues to ventilate for a few minutes. The unit then returns to normal operation, and continues cycle. Airflow up to 687 cfm @ 0.4” Ps Push-pull configuration External low voltage contacts Dual service doors & reversible electrical box External three position switch (Low/Standby/Medium) Improved BMS integration • • • • • • Maximum continuous airflow in.wg 0.3” Ps 0.4” Ps 0.5” Ps 0.6” Ps 0.7” Ps 0.8” Ps 0.9” Ps 1.0” Ps 1.1” Ps 1.2” Ps Supply air flow (high) 722 687 651 615 580 544 508 472 437 401 Exhaust air flow (high) 722 687 651 615 580 544 508 472 437 401 cfm Energy performance Supply temperature Net airflow Apparent sensible effectiveness F cfm % 35 690 63 35 518 68 95 690 47 95 518 49 Heating O Heating Cooling Specification data Model Voltage / phase V/~ W A cfm SHR 6904 120 / 1 660 5.5 687 fantech Rated power Max amps Average airflow @ 0.4” Ps Connection Defrost cycle Shipping weight Side Auto 255 Item # lbs List price USD 40417 2,712.00