27
AHU Kit – Installation Instructions –
11/2021
Product description
3
Control functions provided as standard by integral components
CZ-RTC5B / CZ-RTC6BL remote controller
● Operation-ON/OFF
● Mode selection
● Temperature setting
●
Parameter settings
TR-16 / TR-16e Additional Thermostat (advanced version only)
● Target temperature setting based on ambient temperature with proportional integral
logic*
● Demand control based on room supply air temperature to enhance comfort and
efficiency*
*
Only one of these two options can be chosen at a time.
CZ-CAPBC2 Mini seri-para I/O unit (medium and advanced versions only)
● Easy integration in external AHU control systems and BMS
● Demand control: 40 to 115 % (5 % steps) of nominal current by 0–10 V input signal
1
>
Medium version: Terminals M2-3, M2-4.
Advanced version: Terminals M2-1, M2-2 in case of using TR-16e; Terminals
M2-3, M2-4 without using TR-16e.
● Target temperature setting by 0–10 V or 0–140 Ω input signal
1
>
Medium and advanced versions: Terminals M2-3, M2-4.
● Suction air temperature (TA sensor) output by 4–20 mA signal
>
Medium version (MAH2/PAH2 generation): Terminals PT9, PT10;
medium version (PAH3 generation): Terminals M2.1, M2.2.
Advanced version only, directly on CZ-CAPBC2 interface: Terminals 1, 2.
● Mode select and/or ON/OFF control
2
>
Medium and advanced versions: Terminals DI1, DI2, DI3, COM.
● Fan operation control
2
>
Medium and advanced versions: Terminals DI1, DI2, DI3, COM.
● Operation status output/ Alarm output
>
Medium and advanced versions: Terminals COM, DO1 / COM, DO2.
● Thermostat ON/OFF control
2
● Medium and advanced versions: Terminals DI1, DI2, DI3, COM.
1
Demand control by external BMS cannot be combined with the demand control or target temperature setting accom
-
plished by the thermostat. However, if simultaneous demand control and target temperature setting is needed, this can
only be achieved by using a second (optional) CZ-CAPBC2 interface.
2
Mode select and/or ON/OFF control cannot be combined with fan operation control nor Thermostat ON/OFF control.
However if simultaneous control of 2 options is needed, this can be achieved by using a second (optional) CZ-CAPBC2
interface. All 3 options cannot be used at the same time.
22.07.2021, cH
Cannot find the Terminals “PT9, PT10” on the
PAH3M terminal board:
- Is this function still valid for the new model?
- If so, which are the relevant terminals?
02.08.2021, cH
Corrected as per Corr. JW of 27.07.2021
25.08.2021, cH
“Advanced version only, directly on CZ-CAPBC2 in-
terface” adjusted as per Corr. JW of 06.08.2021
explanation: this is just for the advanced version,
there was no space left on big terminal in front, so
you need to use the terminals of CZ-CAPBC2 PCB
on the backside.
Summary of Contents for PAW-280PAH3M-1
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