Trane R Series Installation Operation & Maintenance page 40

40
Installation Electrical
Tab. IV-03 – Pump Relay Operation
Relay 1 Terminals J2 -12,11,10:
Relay 2 Terminals J2 - 9,8,7:
Relay 3 Terminals J2-6,5,4:
Relay 4 Terminals J2-3,2,1:
If any of the Alarm/Status relays are
used, provide electrical power, 115 VAC
with fused-disconnect to the panel and
wire through the appropriate relays
(terminals on 1U12
Provide wiring (switched hot, neutral,
and ground connections) to the remote
annunciation devices. Do
power from the chiller's control panel
transformer to power these remote
devices. Refer to the field diagrams
which are shipped with the unit.
Low Voltage Wiring
The remote devices described below
require low voltage wiring. All wiring to
and from these remote input devices
to the Control Panel must be made with
shielded, twisted pair conductors. Be
sure to ground the shielding only at the
panel.
Alarm
Chiller Running
Maximum Capacity (software 18.0 or later)
Chiller Limit
To prevent control malfunctions, do not
run low voltage wiring (<30 V) in conduit
with conductors carrying more than 30
volts.
(EUR=A4-5)).
Emergency Stop
CH530 provides auxiliary control for a
not use
customer
trip out. When this customer-furnished
remote contact
the chiller will run normally when the
contact is closed. When the contact
opens, the unit will trip on a manually
resettable diagnostic. This condition
requires manual reset at the chiller
switch on the front of the control panel.
Connect low voltage leads to terminal
strip locations on 1U4. Refer to the field
diagrams that are shipped with the unit.
specified/installed latching
5K14 is provided,
RTAC-SVX002A-EN