Warren Controls E025, Инструкции по установке, эксплуатации и обслуживанию

Страница: 23 / 28

23
HVAC_BAC_ELECTRIC_IOM_RevE_0421
1. Disengage the building power circuit before wiring. Verify that the battery inside the VMS-50 has its wires disconnected and leave
them that way for now. Disconnect them if they are connected.
2. Connect the VMS-50 BCM to the actuator(s) as shown on wiring diagram. The VMS-50 BCM can power one, two or three actuators.
Actuator A: Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to provide power. Connect grounded reference
- negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Connect 24 Vdc (+) OUT 24 VDC +
→
to white wire from actuator
to drive the valve stem in the direction determined by the actuator rotation switch position. Disconnect 24 Vdc (+) OUT 24 VDC +
→
from white wire from actuator to drive the valve stem in the opposite.
Actuator B: Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to provide power. Connect grounded reference
- negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Connect 24 Vdc (+) OUT 24 VDC +
→
to white wire from actuator
to drive the valve stem in the direction determined by the actuator rotation switch position. Disconnect 24 Vdc (+) OUT 24 VDC +
→
from white wire from actuator to drive the valve stem in the opposite.
Actuator C: Connect 24 Vdc (+) OUT 24 VDC +
→
to red wire from actuator to provide power. Connect grounded reference
- negative/black wire from actuator to 24 Vdc (-) OUT 24 VDC -
→
. Connect 24 Vdc (+) OUT 24 VDC +
→
to white wire from actuator
to drive the valve stem in the direction determined by the actuator rotation switch position. Disconnect 24 Vdc (+) OUT 24 VDC +
→
from white wire from actuator to drive the valve stem in the opposite.
3. While still disconnected, wire the 24 Vdc External Power Supply LOAD to the VMS-50 BCM. Connect the POSITIVE (+) lead to the
24 Vdc (+) IN 24 VDC+
← terminal, then connect the NEGATIVE (-) lead to the 24 Vdc (-) IN 24 VDC - ← terminal.
4. Connect the 24 Vdc External Power Supply LINE into the building power source. For the VMS-50 PS plug the three pin LINE input
plug into the 115 VAC 50/60 Hz building power source.
5. Verify that building power is live then connect the loose red wire inside the VMS-50 BCM enclosure to the positive (+) battery
terminal and the black wire to the negative (-) battery terminal.
NOTE: Engage the building power to the VMS-50 BCM before connecting the battery. Connecting the battery first causes the VMS-50
BCM to go into the power failure mode.
ON-OFF CONTROL