Airedale DeltaChill FreeCool 110kW - 1080kW - Manual (Page 22)

Chillers
22
Introduction
Chiller Technical Manual 7267818 V1.4.0_04_2014
DeltaChill™ Air Cooled and FreeCool
1. Clamp
2. Gasket
3. Counter pipe
1
2
3
Waterside
Free Cooling Coil
A free cooling coil constructed in a “V” frame arrangement, allowing for efficient heat transfer from the ambient air
temperature to the cooling process.
The free cooling coil is manufactured from copper tube and aluminium fin.
Free cooling is initiated whenever the outdoor ambient temperature is 2°C less than the return water temperature.
The “V” frame arrangement enables efficient concurrent cooling.
The DeltaChill Free cool chillers pipe work has been designed to optimise pressure drop. With this in mind the chiller is
more efficient in delivering a cooling solution.
Flow Proving Device
An evaporator differential pressure sensor facilitates low flow limiting and pressure drop monitoring via the
microprocessor shall be fitted to ensure a correct unit water flow.
Pump Interlock
Provision for a pump interlock is available within the control panel.
Water Flow Switch
A water flow switch is fitted ensuring integrity of the cooling solution flow
Water Filter
Water filters are fitted to protect the evaporator from clogging by sediment. This is a standard feature with the DeltaChill
Free cool.
For standard Air Cooled DeltaChill the water filter is an optional extra
CAUTION
The water flow switch or pump interlock must be fitted in addition to the flow proving device to validate warranty.
Water Connections
Water inlet and outlet connections are of a grooved and clamped type construction. The unit is supplied with a counter
pipe and coupling assembly for quick connection.
Optional flanged connections available on request, please consult Airedale.