Control Panel Wiring; Vac Outputs; 24 Vdc Inputs - York YGWH 115 Installation, Commissioning & Operation

Form 6S6I-B01C-EOMA-EN (0318)

Control Panel Wiring

The power connected to the I/O board input terminals
is 24 Vdc while the power connected to the I/O board
output terminals is 220 Vac.
The wiring for 220 Vac power must use dry-contacts
(It is suggested to use the golden contact).If the dry-
contact is part of a relay or a contactor, a capacitance-
resistance suppressor winding must be used to
minimise Electromagnetic Interference. Make sure
that the above precautions are followed to avoid the
Electromagnetic Interference, which may result in the
fault or damages on the unit or the controller.
The length of cable connected to these terminals
should not exceed 7.5 metres.

220 Vac Outputs

Water pump starter
Terminal 60 provides a 220 Vac output for water pump
control. Starting and stopping of pump can be achieved
by a contactor and the programmed start /stop.
Note: The power load should not exceed 5W.
Alarm
Terminal 68 provides a 220 Vac output to indicate an
alarm condition.
Note: The power load should be less than 5W.

24 Vdc Inputs

Flow switch
A suitable water flow switch must be connected to
terminals 11 and 0 to provide adequate protection
against loss of condenser liquid flow.
A suitable water flow switch must be connected to
terminals 12 and 0 to provide adequate protection
against loss of evaporator liquid flow.
Note: Contact resistance should be less than 0.5Ω.
220 Vac Remote Run/Stop
Connect a remote switch between 7 and 1 to provide
remote start/stop if required.
Note: Contact resistance should be less than 0.5Ω.
EN
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