HL 722 Control unit for ventilation system
The trainer HL 722 is required if the ventilation system HL 720 is to be used for experiments with room temperature control.
The trainer is connected between the ventilation system and an external source of hot water using quick-release couplings. With this arrangement it is possible to demonstrate room temperature control in ventilation systems.
Only original parts were used for the trainer.
- temperature control for ventilation system HL 720
Pump
- power consumption: 70W
- max. flow rate: 60L/min
- max. head: 4m
Measuring ranges
- temperature:
- 1x -50…600°C
- 3x 0…120°C
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
120V, 60Hz, 1 phase
UL/CSA optional
- temperature control of a ventilation system
- circulating pump
- 3-way mixing valve DN 20
- electronic controller with temperature sensor and setting of the reference variable
- 3 thermometers and 1 temperature sensor with display
- quick-release couplings for connection to hot water supply and ventilation system
- temperature control of the air flow in a ventilation system
