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Model ERCH-HP Energy Recovery Unit
Coils
The airside coil is connected to the heat pump
compressor(s) and is the primary vehicle for heating
and cooling of the building. A reheat coil is optionally
available and is installed in the supply airstream
adjacent to the airside coil. The reheat coil is also
connected to the heat pump but is used only when the
unit is in cooling mode.
Subassemblies
Energy Wheel
The energy wheel rotates through both the outdoor air
and the exhaust airstreams, removing both sensible
(heat) energy and latent moisture from one airstream
and transferring it to the other airstream. The energy
wheel itself is comprised of segments which can be
removed for servicing.
Motorized Recirculating Air
Damper
Motorized Outdoor
Air Intake Damper
Wheel Cassette
Coil Section
Exhaust
Hood
Ooutdoor Air
Hood
Exhaust Air
Intake
Electrical Box
Filters
Filters
Indirect Gas Heater
Motorized Exhaust
Air Damper
Gravity Type
Exhaust Damper
Dampers
There are four locations where dampers are optionally
installed.
Optional Heat Pump
Reheat Coil
Heat Pump
Airside Coil
Filters
There are three locations in the unit where filters will be
found.
Permanent Metal Filters
Wheel Cassette
Coil Section
Exhaust
Hood
Ooutdoor Air
Hood
Exhaust Air
Intake
Electrical Box
Filters
Filters
Indirect Gas Heater
Two-inch thick MERV 8
pleated filters
Two-inch thick MERV 8 or
MERV 13 pleated filters
Label showing
cassette serial number
and date code
Bearing Support
Adjustable
Air Seals
Drive Belt
Drive Pulley