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  Model QST - Fan Powered Series Air Terminals  
       
 


Model QSTS
Series Basic Assembly

Application

  • Series type, fan assisted air terminal proportions primary air and ceiling plenum air
  • Maintain space temperature with constant air flow delivery to the space throughout the operating range for high levels of thermal comfort.
  • Energy reclamation from warmer ceiling plenum during heating cycles.
  • Improved air quality with high levels of air motion for significant occupant comfort.
  • Control strategies using pneumatic, analog, or direct digital control (DDC) systems
Product Features
  • Efficient, 3 Speed motor (permanent split capacitor) with thermal overload protection allows horsepower change for greatest potential of energy savings. 120 or 277 vac, 1ø
  • Solid state speed controller with factory calibrated minimum voltage setting for precision air flow adjustment.
  • Ultra-Quiet, 18 & 20 gauge zinc-coated steel design for rigidity and demanding noise criteria specifications. Standard terminal includes an acoustical attenuator – not an “add on” accessory!!
  • 1" dual density thermal / acoustic internal insulation (NFPA 90A & UL 181)
  • Easy to install and service – all controls located in one convenient location for single point electrical connection.
  • Swing-down fan access panel
  • Steel control enclosure, screw attached cover. Left hand position is standard.
  • 90° inlet damper & perimeter seal limiting leakage to <1% of max rated flow at 3" w.g. inlet static pressure.
  • Patented Velocity Wing primary flow sensor measures flow to ±5% accuracy regardless of inlet conditions. Highest velocity pressure amplification means high turn down with high accuracy.
  • AHRI 880 certified performance / ETL listed (UL 1995).
  • Accepts flanged discharge duct connection
Options
  • Model Q5 radiated sound elbow
  • Hinged front control enclosure cover
  • Internal Insulation - 1/2" or 1" foil-faced glass fiber insulation with metal taped edges meeting ASTM C665, double wall construction, Lo-Temp casing construction, 3/8” fiber free closed cell foam insulation, no insulation, see page A-11.
  • Slip & drive cleat discharge collar
  • 1” Throw-away filter & filter rack
  • Unit mounting brackets (field installed)
  • Electrical component options – line voltage disconnect switch, power fusing, 3-speed manual motor selector switch, electric damper actuator (24vac) for use with DDC controls, fan relay for on-off function, 24vac step down transformer
  • Digital, analog, or pneumatic control systems

Model QSTW
Series Hot Water Heat

Application

  • Series type, fan assisted air terminal with integral hot water heating coil
  • Provide hot water heating to perimeter spaces during occupied periods and night cycling temperature control with central fan systems shut down
Product Features

Same as Model QSTS plus:

  • 1 or 2 row hot water coils
  • 1/2" O.D. copper tubes, .016" wall thickness, mechanically expanded in fins. Manifolds are minimum .028" wall thickness.
  • Aluminum corrugated fins with rippled edges, .0055" thick, 10 per inch.
  • Designed for maximum heat transfer and low water pressure drops using single and multi-circuited designs.
  • Performance data per AHRI Standard 410
  • Factory pressure tested for leaks at 300 psi, burst tested at 450 psi, ambient temperatures.
  • 20 gauge galvanized sheet metal casing with 18 gauge end plates
  • “Slip & Drive” connection provided for metal discharge duct connection
  • Connections are male solder headers.
Options

Same as Model QSTS plus:

  • Right hand or left hand coil connection – factory configured
  • Coil clean-out access door
  • “Steam” construction available. Contact your local Anemostat representative.

Model QSTE
Series Electric Heat

Application

  • Series type, fan assisted air terminal with integral electric heating coil
  • Provide electric resistance heating to perimeter spaces during occupied periods and night cycling temperature control with central fan systems shut down
Product Features

Same as Model QSTS plus:

  • Integral electric heating coil with nickel-chrome resistance wire
  • Primary, auto reset thermal cutout
  • Fan interlock relay for proof of air flow
  • 24vac Class II transformer (unfused) as required for 24vac control systems
  • PE switches for pneumatic control systems
  • Magnetic de-energizing contactor per step
  • Accepts flanged discharge duct connection
  • Left hand control and heater cabinet position are standard
Options

Same as Model QSTS plus:

  • Door interlocking disconnect switch, non-fused
  • Air flow switch in lieu of fan interlock relay
  • Power fusing (fuses & fuse blocks)
  • Manual reset secondary thermal cutout
  • SSR modulating controller
 
AHRI Certified Ratings

Features at a Glance

   
   
 
Control Packages Selector

Analog & DDC
Control Packages

Pneumatic
Control Packages
Product Details
Model Product
Description
Fan Curves /
Amp Draw
Heating Coil
Data
QSTS • • N/A
QSTW • • Hot Water
QSTE • • Electric
Submittals
Model Features  
QSTS Series Fan Terminal, Standard •
QSTW Series Fan Terminal with
Hot Water Heat
•
QSTE Series Fan Terminal with
Electric Heat
•
Optional Features
C1/KIT Hanger Brackets •
Field Installed Hanger Bracket - Recommended Locations
ENCLOSURE Optional Bottom Control Enclosure •
Air Filter Bottom Replacement with Q5 Sound Elbow •
Q5 Sound Elbow on Induction Port •