Airedale Ultima Water Cooled 75kW - 450kW - Manual (Page 8)

ULTIMA WATER COOLED Chillers
8
Chillers
Technical Manual : Part No 6259477 V1.4.0_07_2014
General Description
STANDARD FEATURES
Construction The base and superstructure are fabricated from galvanised steel to ensure a tough,
durable, weatherproof construction.
Unit panels are manufactured from galvanised sheet steel coated with epoxy baked
powder paint to provide a durable and weatherproof finish.
Standard unit colour is Light Grey (RAL 7035).
Components are mounted on a rigid galvanised heavy-duty sub frame. Fully locked
electrical panels are situated at one end of the unit. Access to the compressors is via end
panels adjacent to the electrical control panel.
A set of 4 M24 collared eye bolts to BS4278 are supplied.
Evaporator Stainless steel high efficiency brazed plate heat exchanger(s) will allow optimum heat
transfer between media. Each heat exchanger is insulated with closed cell polyurethane
foam to Class 0 fire rating.
Water inlet and outlet connections suit “Victaulic” type pipe and coupling assembly
(counter-pipes and clamps supplied as an optional extra).
A pad heater is fitted to the single evaporator and will protect against freeze up in ambient
temperatures as low as -20°C.
Condenser Stainless steel high efficiency brazed plate heat exchanger(s) will allow optimum heat
transfer between media.
Water inlet and outlet connections are “Victaulic” type pipe and coupling assembly
(counter-pipes and clamps supplied as an optional extra).
Compressor Tandem / Trio scroll compressors comprising 2/3 scroll compressors linked to provide 1
refrigeration circuit.
Each compressor includes internal motor protection, internal pressure relief, non return
valve, discharge temperature protection and sight glass. Each compressor is equipped
with oil heater to guard against oil foaming on start up.
Each Tandem / Trio has an oil equalisation line.
The compressors are mounted to the rigid galvanised heavy duty sub-frame with the use
of vibration reducing isolation.