SHR 6904 Spec Sheet

Specification Sheet
Item #: 403784
Rev Date: 2016-06-15
SHR 6904
Commercial Heat Recovery Ventilators
Product #: 40417
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 exchanger
core transfers sensible energy between air streams resulting in
tempering of the supply air and reduced loads on the HVAC system.
Feature
• Push-pull configuration
• External low voltage contacts
• Dual service doors & reversible electrical box
• External three position switch (Low/Standby/Medium)
• Weighs 185 lbs (84Kg)
Specifications
• Voltage/Phase – 120/1
• Power rated – 660 W
• Amp – 5.5 A
• Average airflow – 687 cfm (324 L/s)
@ 0.4" P
s
(100Pa)
Port configuration
The unit has access doors on the front and back. Also, the main control
panel may be moved from front to back allowing for ducting layout.
Fans
Two (2) factory balanced fans with backward curved blades. Motors come
with permanently lubricated sealed ball bearings, (TOP) thermal overload
protected and maintenance-free operation.
Heat recovery core
Fantech manufactures this fixed plate cross-flow heat exchanger
using new 1100 alloy aluminum. Heat exchanger is engineered with a
turbulence inducing geometry in order to maximize heat transfer while
allowing an effective evacuation of condensate. The plates are hemmed
and sealed to ensure no cross-contamination of airstreams. The
aluminum core had a plastic handle for easy removal. The SHR 6904
features two cores, each 12" x 12" (305 mm x 305 mm) with a 15" (380
mm) depth.
Defrost
A preset frost control sequence is initiated if the outdoor temperature
falls below the set point of 23°F (-5°C). During the initial stage, the
supply blower shuts down & the exhaust blower switches into high speed
to eliminate frost build-up in the core. The unit then returns to normal
operation for the final stage of the frost control sequence at which time
the sequence is repeated if the outdoor air temperatures is still below the
set point.
Serviceability
Cores, filters and drain pan can be accessed easily from both sides of the
HRV from hinged access panels. Cores conveniently slide out with only
15" (380 mm) clearance. Blowers can be accessed from both side of the
HRV from fastened access panels. Blowers are easily removed by taking
off the access panel and sliding the motor plates out of the HRV. A quick
connect allows for fast inspection of blowers.
Case
20 gauge galvanized steel. Baked powder coated paint.
Insulation
Insulated with 1in. (25 mm) fiberglass with FSK facing for condensation
control.
Filters
The exhaust and fresh air streams are protected by MERV1 washable
filters constructed to meet UL 900. Optional MERV6 filters are direct
replacement to the MERV1. Use of MERV6 filters will add an additional
system pressure of 0.26in.wg (60 Pa) at 690 cfm (326 l/s).
Controls
External three (3) position (Low/Stand By/Medium) rocker switch that will
offer continuous ventilation. In addition Fantech offers a variety of external
controls.
Mounting
Unit may be suspended by using threaded rod, not supplied, or placed on
a platform. Unit shall be adaptable for easy service of electrical
components.