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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
Pneumatic Electronic
Analog
Direct Digital
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