PETRA Water Source Package (PWSP) is the indoor unit in the ESC system. It is a self- contained reverse cycle A/C unit that supplies either cold or warm air to the application space with highly efficient performance using an internal room thermostat (controller). This compact unit has different designs such as free- standing, ducted, concealed and floor mounted cabinet types to fit all customer requirements
The compact design of the PWSP makes installation easier by eliminating refrigerant lines between the indoor and outdoor unit in residential applications, shops, hospitals, and restaurants
Also, the design of the PWSP focuses on simplicity of maintenance since all accessible components are situated in one place. PWSP has a special noise isolating patented design compartment surrounding the compressor, which achieves the lowest noise level in the market for such applications
PWSP series includes 15 sizes ranging from 5.3 kW (1.5 T.R) to 98.5 kW (28 T.R) with air flow from 1000 m3/h (600 CFM) to 17000 m3/hr (10000 CFM) with minimal noise through suction, discharge and radiation sections. The unit models (PWSP15 – PWSP65) have three speed centrifugal fans (low, mid and high)
- Low sound compressor with low discharge pulse levels which ensures quiet operation
- Sound jacket kit for compressor
- All compressors used are approved to operate as a heat pump compressor.
- The motor protector used inside the compressors is mounted internally and its proven design is the result of.
- Petra`s coils are designed to deliver their duties at optimum performance for all design conditions. Coils are manufactured from seamless copper tubes mechanically expanded into aluminum fins
- All coils are air pressure tested at 450 Psi, under water to avoid leakage. They also undergo dry chemical cleaning after manufacturing for optimum system cleanness
- All units are provided with forward curved centrifugal fans of the Double Width Double Inlet (DWDI) type that are designed for maximum uniform air distribution
- The fans are statically and dynamically balanced to ensure quiet operation and optimal performance
