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Presentation

PROMATIC® AHC controllers are intended to control mixing circuit temperature according to room or outdoor or booth temperature.

AHC21 controller is weather compensated (outdoor sensor) controller of mixing circuit.

Setup of controller is done with touch sensitive keypad on the cover of the controller. Display is used to indicate actual temperatures and to setup the controller.

User functions

Party operation mode

Party operation mode is selected to extend daily or comfort mode of space heating. You can also set the time of the Party operation model.

ECO operation mode

ECO function allows heating at a lower or energy saving temperature. You can also set the time of the Eco operation mode.

Holiday operation mode

The function allows the heating to be set at a specific energy saving temperature for a specified number of days.

Heating system protection

The controller ensures periodical start-up of pumps and valves during inactive period as well as protection of the solar panels, and the heater against overheating or freezing.

PC Interface

Through dedicated USB inverter the PROMATIC® KXD controller can be connected to a PC. The accompanying Selcontrol software allows setting and monitoring of controller operation using a PC. The solution also operates in the SeltronHome environment.

Technical data

Features	AHC20	AHC21	AHC22	CMP25-2
Number of hydraulic schemes	1	1	1	2
Heating and cooling
Weather compensated control of the heating system	X
Operation with room temperature sensor		X
Maximal stand-pipe temperature limitation for floor heating
Possible measurement of the flow with Vortex flow meter	X	X
Number of mechanical relays	1	1	1	1
Number of electronic relays	2	2	2	2
Number of temperature sensors	2	2	2	4
Number of temperature sensors	6	6	6	7
BUS connection with other controllers	1	1	1
USER FUNCTIONS
Weekly program timer	If a room unit is connected
Function PARTY	If a room unit is connected
Function ECO	If a room unit is connected
HOLIDAY mode	If a room unit is connected
Automatic switchover winter / summer	X	X	X
HEATING SYSTEM PROTECTION
Frost protection
Anti block function for pumps and valves
DATA DISPLAY
Display of hydraulic scheme	X	X	X
Graphic overview of temperatures and gained energy	X	X	X
Logging of settings changes	X	X	X
Simulation of system operation	X	X	X
Error and high temperature warning	X	X	X
SETTINGS AND INSTALLATION
Multilingual user interface	X	X	X
Simple interactive programming of interval working	X	X	X
Plug & Play-Installation
Installation sets for many mixing valves
Error diagnostics and automatic switchover to the alternative operating mode
REMOTE ACCESS
Possibility of connection with PC
SeltronHome remote control with Smart phone or Tablet
*Available only by schemes with boiler, electric heater or heat pump.

TECHNICAL DATA
	AHC20	AHC21	AHC22	CMP25-2
Power supply	230 V ~, 50 Hz
Consumption	< 4 VA
Consumption in standby	max. 0,5 W
Load on pump output (R1)	4 (2) A / 230 V~
Torque	6 Nm
Degree of protection	IP42 acc. to EN 60529
Safety class	I acc. to EN60730-1
Operation type	1B acc. to EN 60730-1
Temperature sensor type	Pt1000			Pt1000 or KTY10
Mixing valve control	3-point PID
Controller housing	PC - thermoplastics
Dimensions (w× l × h)	84 × 101 × 88 mm			84 × 105 × 100 mm
Ambient temperature	0 ÷ 40 °C
Storage temperature	-20 °C ... +65 °C
Weight	678 g	678 g	678 g	827 g
Package unit	12 pcs