Tempered make-up air units
MUA tempered make-up air units are available in four housing sizes incorporating eight blower sizes (9" through 20" single blowers and 18" through 20" twin blower units) with a wide variety of heating and/or cooling options, air flow capacities from 600 to 30,000 CFM, and total static pressures up to 4" w.g.
These units are offered in a choice of four housing sizes, three discharge orientations and five curb/mounting arrangments.
Standard Construction
HOUSING
- Heavy-gauge weatherproof galvanized steel housing
- 1" thick 3# density fiberglass insulation
- Large gasketed access panels with draw tight tooled fasteners
- Heavy-gauge base frame with lifting lugs
- Intake hood with bird screen
- V-bank filter rack
- 1" permanent filters
- Down discharge
- Coil section
BLOWER SECTION
- Forward curved double width, double inlet blowers
- Statically and dynamically balanced blower wheels
- Precision machined shafts and sealed ball bearings
- Adjustable motor mount and drives with belt selected for 165% of motor horsepower
- NEMA frame ODP motor
- Three phase 1 HP and above motors are EPACT high efficiency rated
- Blower and motor mounted on vibration isolators
KEY
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DATA
Models
MUA Tempered Make-Up Air Unit
MUA with Vertical Housing
MUA Roof Curb Arrangements
Other Information
- Fan Selection Guide (PDF)
- MUA Fan Installation and Maintenance Manual (PDF)
- Evaporative Cooling Module I M Manual (PDF)
- Heating and Cooling Coil I M Manual (PDF)
Options & Accessories
HOUSING
- Flat filter section in intake hood
- Delete intake hood
- Foil faced insulation
- Double wall insulation
- Painted housing
- Stainless steel housing
- End discharge
- Top discharge
- Duct adaptor
- Four way discharge head
- Floor rubber in shear isolators
- Hanger spring isolators
- Vertical unit
- Equipment stand for vertical unit
FILTERS
- 2" permanent filters
- 1" disposable filters
- 2" disposable filters
- 1" 30% filters
- 2" 30% filters
MOTORS
- TEFC
- Two speed, two winding
- Two speed, one winding (three phase)
- Premium efficiency (three phase)
MOTORIZED DAMPER
- Low leakage opposed blade damper
- Two position spring return actuator
- Intake or discharge mounting
- End switch
- Return air damper with numerous actuator options
CONTROLS
- Fan disconnect switch (non-fusible or fusible)
- Single point pre-wired motor control center with main fusible disconnect, starter(s) and fused transformer (located within unit or remotely)
- Exhaust fan motor starter
- Remote control panel
- Remote control panel with indicator lights
- Low temperature limit switch (freeze stat)
- Mild weather thermostat (inlet air sensor)
- Clogged filter switch with indicator light
- Convenience outlet (service receptacle)
- Time delay relay
- Time clock (seven day)
- Smoke detector
- Variable air volume with frequency drive
COOLING
- Chilled water coil, ARI 400 tested, copper tubes with aluminum fins
- DX coil, ARI 400 tested, copper tubes with aluminum fins
- Evaporative cooling with microprocessor controls
HEATING
- Hot water coil, ARI 400 tested, copper tubes with aluminum fins
- Steam coil, ARI 400 tested, copper tubes with aluminum fins
- Open coil electric heaters, CSA NRTL/C Listed in compliance with CSA Std. C22.2 No. 155-M1986 UL Std. No. 1986, with various control options available
Contact the factory for any other options or accessories not listed.