25
Chapter 3 Installation
No.
Item
Description
6
/
7
Output dry
contacts
Connect two dry contact output devices and trigger the contacts
DWVSHFL¿FHYHQWV
Port
6
(System alarm event): Normally open. Connect the
dry contact device to this port and the device will be triggered
when an alarm event occurs (close the circuit). You may set the
triggering conditions. Refer to
5.7.1 Local setting
.
Port
7
(Start of cooling unit) Normally open. Automatically
trigger to form a short circuit at the start of the cooling unit to
remind the chiller to output chilled water and turn to the normally
open status until the cooling unit is powered off.
8
Remote
temperature
sensor ports
At most, three remote temperature sensors (two are provided)
can been connected. Qualified service personnel will connect
and locate them for you in installation for accurate detection of
the temperature of heat loads.
NOTE:
Without permission, do not relocate the remote
temperature sensors.
9
Remote
temperature
and humidity
sensor port
Connects the remote temperature-humidity sensor (purchase
separately) for accurate detection of the temperature and
humidity of heat loads. It is suggested that qualified service
personnel perform installation.
Summary of Contents for HCH1850
Page 64: ...5013217901...