Page 663 - IPD Product Catalog V17

Variable Speed Drives

3 Condenser water pump 6 Air handling unit/fans
Circulates water between the cooling tower and the chiller. Supplies, mixes, cleans, humidifies/dehumidifies, heats/cools air.
• Energy savings can be achieved with variable frequency drives • Drives can be used to;
that adjust pump speed to the cooling load. – control the speed of supply and return fans
– eliminate mechanical stress
– avoid fan resonance
4 Chilled and hot water circulator pumps – control the speed and efficiency of the rotary heat
exchangers
Circulate water (or other liquid) between heating coil and boiler
– control the dampers
or cooling coil and chiller.
– monitor AHU condition including filter clogging, fan belts
• The cooling and heating loads vary a lot over time. Speed
and heating coil freeze
controlled circulator pumps make sure that an adequate
amount of heating or cooling is distributed in the building. • ABB HVAC drives’ override mode secures drive operation in
• Soft start and stop of the pump reduces hydraulic stress on case of fire.
pipelines and valves.

5 Boiler
Heats up the water for building heating/domestic hot water
supply.
• The drive controls the burner fan to adjust the amount of
1 combustion air to the heating load. 4

5

3
2

4

4

6

1300 556 601 | ipd.com.au | V17-R05 663