38
17 USER INTERFACE / REMOTE CONTROLLER
The remote controller supplied per installation is the Siemens QAA74 controller.
This controller should be used as only an “
operator unit
” with the S-ASX heat pumps to change settings /
parameters. An external control system will be required to create a heat demand signal.
17.1
Remote Control Design
17.1.1
F
RONT
V
IEW
1. Control Knob.
2. Display LCD.
17.1.2
R
EAR
V
IEW
1. Controller Housing.
2. Mounting Plate.
3. Snapper to release / attach the mounting plate.
17.1.3
B
OTTOM
V
IEW
1. USB Connection (For service only).
2. Snapper to release / attach the mounting plate.
Содержание S-ASX 30
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