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IOM_WPHBA HE-WPHA HE_091a1201_207815_180701_EN
HORIZONTAL WATER-AIR COMPACT PACKAGED UNITS
WPHA HE / WPHBA HE
INSTALLATION
ELECTRICAL CONNECTIONS
1. Power Supply :
* 091- 251 Single-phase
** 351-1201 Three-phase+Neutral
2. Ground
3. Delayed-action fuses or circuit
breaker D curve.
4. Main switch
5. Th TUNE Control
Thermostat connections.
Th-TUNE CONNECTION:
-
Two power supply cables 230 VAC
(L+N)
-
A shielded twisted pair cable AWG
20/22 with drain wire to GND.
PGD CONNECTION (Option):
-
Connection through 6 wire
telephonic cable for lines greater
than 50m intersperse with TCONN
(4 wire twisted and shielded, see
diagram).