Mitsubishi Electric ecodan PUHZ-W50VHA2 User Manual page 24

Electrical Connection
PAR-W21MAA Remote Controller
The PAR-W21MAA controller is supplied with the FTC2(PAR-IF031B-E) package. Its primary function is as a
commissioning tool to set the target flow temperatures for central heating mode and to set the cylinder target
temperature for hot water mode. To adjust all functions see pages 41 - 50. It has a display which shows the target
and actual flow temperatures as well as the operating mode.
If the system is ever in a fault condition, a two digit code will flash on this controller and the operation light will
flash repeatedly.
The controller should be wired as shown in Fig. 2.4 and care should be taken not to run the control cable with
mains voltage cables.
22
INSTALLATION
Fig 2.8
Fig 2.9
21
Flashing Error Code
Time of day
Actual Flow Temperature
Target Flow Temperature