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© STULZ GmbH – all rights reserved EN/06.2021/G23
minispace cw original instructions
3.2 Intended use
This A/C unit serves to control room temperature and air humidity within the application limits stated in
chapter 4.1. The A/C unit is designed for indoor installation. Any use beyond this is not deemed to be
use as intended.
3.3 Function of the A/C unit
The A/C unit is exclusively operated by the controller in the front panel and the main switch in the electric box.
To adapt the airflow to the needs of the system the fan speed can be adjusted gradually at the controller by
means of a 0-10V signal.
At the air inlet a temperature and humidity sensor is installed.
The setpoints can be set at the controller.
To control the supply air temperature the controller adjusts the 2 way valve, which is part of the chilled water
circuit and controls the amount of chilled water which flows through the chilled water coil.
For optional heating the hot water reheat option is available. For optional reheating the electrical reheat option
is available (only as a support for dehumidification).
Downflow unit
To achieve a dehumidification, the fan speed is
reduced.
A humidification can be obtained by using the
optional humidifier.
The A/C unit control is effected by the on board
controller.
Electric box
Air filter
Heat exchanger
Chilled water
control valve
Fan
