ECKELMANN UA 300 D - On−Off Control by All Supply Air Sensors

Function of UA 300 D
10
Version 2.03 27. Juni 2008
3.2.2.8 On−off control by all supply air sensors
Controller type: UA 111 X, UA 111 XP
Control takes place through all connected first−zone supply air temperature sensors.
Single−zone operation: In single−zone operation, Cooling Relay 1 and the compressor outputs are actuated.
Valve 1
Return
air
R4.1
R2.1
Supply
air
Verdampfer 1Evaporator 1
ZNR. 51203 72 230 E1
R2.2 R2.8
(optionally)
Compressor 1
Compressor 2
Compressor 3
only UA 111 XP /
optionally
Refrigeration point
controller
UA 300 D
R2.1 .. R2.8: Supply air sensor (Terminal Z11/12; Terminal Z31/32 .. Terminal Z91/92)
R4.1: Return air sensor (Terminal Z21/22)
Valve 1: Solenoid Valve 1 relay (Terminal 25/26/28)
Compressor 1 relay (Terminal 43/44)
Compressor 2 relay (Terminal 53/54)
Compressor 3 relay (Terminal 63/64 − UA 111 XP ONLY)
When connecting the supply air sensors, make sure there are no free locations between the connec-
ted sensors. For example, when connecting four supply air sensors, the consecutive inputs R2.1 to
R2.4 must be used.