Page 6 of 83
SK2018 PCG(H)-V/P-AECM-001
A.
Technical Data
A.1.
General Description
The Ceiling cassette units make each served area an independent controlled temperature zone to suit diverse requirements.
Construction
Cases are constructed of galvanized sheet steel with integral fan mounting rails for added strength. Fire resistant insulation is
fitted internally to provide both thermal and acoustic insulation. The RAL9010 fascia is constructed of high-impact
polystyrene.
Coils
Constructed with seamless copper tubes and headers. The tubes are mechanically expanded into corrugated aluminum fin
material for a permanent primary to secondary surface bond. Coils are tested at
435
psi and recommended for operating
at
300
psi. Coils include manual air vent and water purge valve.
Fan
The backward-curved centrifugal fan is statically and dynamically balanced for quiet operation. Fan impellers are made from
fire-retardant plastic for lightweight and corrosion-resistant operation.
EC motor
The unit is using EC motor include driven controls PCB, a constant torque, permanent magnet, brushless EC motor with
preliminary 3-speed setting that allow for precise air balancing.
Filtration
Reusable wire framed filters are fitted and may be vacuum cleaned.
Condensate pump
A condensate pump is fitted to carry water out of the unit. The pump is fixed to a mounting bracket. The pump can be
withdrawn from the bottom after removing the front panel. A float switch is fitted to stop the cooling action, should the
pump become blocked or fail.
Louver
Louver vanes are manufactured from ABS to prevent condensation from forming, automatic adjustable and driven by
stepping motors on unit.
Fresh air
The fresh air system for cassette unit allows up to 15% of unit airflow (maximum air flow per connection is 60 CFM) as fresh
air intake (per connection). Maximum 2 fresh air connections per unit are allowed.
Microprocessor control (EC-S1 type)
The PCB (printed circuit board) microprocessor controls functionality of the indoor-fan motor, water valves (ON/OFF or
modulating) and electric heater (optional), to maintain room conditions at a user-defined set point. Temperature settings, fan
speeds and other control functions can be changed by either infrared handset or wired wall pad. 2pcs of 40 VA 24 VAC
transformer are equipped with unit, which is used to supply 24 VAC power ON/off modulating valve or modulating valve.
Electro-mechanical control (NA-EC-W1 type)
The unit allows operation with a 24 VAC thermostat. When any of motor speed terminals is powered ON or modulating signal
is more than 2.0 VDC, the stepping motor is working and open the louver at maximum position. When all of motor speed
terminals is powered OFF or modulating valve is less than 2.0 VDC, the stepping motor will close the louver. The condensate
pump will run continuously, as long as coil temperature is less than 59°F. Alarm notification and zone control function are
available. 40 VA 24 VAC transformer is equipped with unit, which is used to supply 24 VAC power to thermostat and
modulating valve.
Содержание SUPERIOR PCG-04-V
Страница 1: ...SK2018 PCG H V P AECM 001 ...
Страница 36: ...Page 35 of 83 SK2018 PCG H V P AECM 001 For Twin Fan Unit ...
Страница 85: ...Page 84 of 83 SK2018 PCG H V P AECM 001 ...