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The
Marvair COUNTERFLOW Air
Conditioner offers unique benefits in
applications requiring low supply air outlet.
Typical instillations include buildings for
magnetic resonance imaging (MRI), computer rooms,
electronic equipment shelters, and uninterrupted
power supply (UPS) buildings. The Marvair air
conditioner is an energy and space saving
unit designed to offer maximum indoor
comfort without using outside ground space or
indoor floor space. The unit can be easily
mounted on an outside wall with the supply
opening at or under floor level. Factory or field
installed accessories can be used to meet
specific requirements.
Advantages
over field modified systems include these
standard features:
Designed
for Operation in Low Ambient Conditions
- Low ambient control cycles condenser fan to
regulate refridgerant pressures.
- Timed low pressure by-pass for start-up of A/C
below 20ºF and down to 0ºF (ComPac I only)
- Factory built-in economizer (ComPac II only)
High
Efficiency
- All units meet or exceed current
National Appliance Energy Conservation Act
requirements.
- Lanced fins and rifled tubing on many condenser
and evaporator cells.
Built-In
Reliability
- High and low pressure switches with lockout
relay protects refridgerant circuit.
- Time delay/anti-short cycle timer
- Dual condensate drains with internal traps.
- Two rainwater drains from condenser section to
unit's base.
- Factory-installed circuit breaker on all
208/230V units (optional on 460V units).
Rugged
Construction
- Copper tube, aluminum fin evaporator and
condenser coils.
- Factory-installed heaters on discharge side of
evaporator coil (optional)
- Baked-on neutral beige finish over galvanneal
steel for maximum cabinet life (other finishes
are available).
- Built-in full length mounting flanges and
sloped top for minimized chance of water leaks.
- Compressor location on the isolated vented
bottom shelf for shipping and mounting stability.
Ease
of Service
- Service access valves are standard.
- Easy access to controls without disturbing
indoor air flow - no ladder required.
- Front Control Panel allows easy access and
complies with NEC clearance codes on redundant
systems (two units side by side).
Remote
Alarm Capability
- Dry contacts can be used for remote alarm or
notification upon air conditioner lockout.
  
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