Copeland XM670K Manual

CONTROLLERS FOR MULTIPLEXED CABINETS
XM670K- XM679K
-MANUAL FOR THE SW REL. 4.2-
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
•
This manual is part of the product and should be kept near the instrument for easy and quick
reference.
•
The instrument shall not be used for purposes different from those described hereunder. It cannot
be used as a safety device.
•
Check the application limits before proceeding.
•
Copeland Controls S.r.l. reserves the right to change the composition of its products, even without
notice, ensuring the same and unchanged functionality.
E
1.2 SAF TY PRECAUTIONS
• Check the supply voltage is correct before connecting the instrument.
•
Do not expose to water or moisture: use the controller only within the operating limits avoiding
sudden temperature changes with high atmospheric humidity to prevent formation of condensation
•
Warning: disconnect all electrical connections before any kind of maintenance.
•
Fit the probe where it is not accessible by the End User. The instrument must not be opened.
•
In case of failure or faulty operation send the instrument back to the distributor or to "Copeland
Controls S.r.l." (see address) with a detailed description of the fault.
• Consider the maximum current which can be applied to each relay (see Technical Data).
•
Ensure that the wires for probes, loads and the power supply are separated and far enough from
each other, without crossing or intertwining.
•
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel
with inductive loads could be useful.
2. BEFORE PROCEEDING
2.1 CHECK THE SW REL. OF THE XM669K
1. Look at the SW rel. of XM669K printed on the label of the controller.
If the SW release is 4.2 proceed with this manual otherwise contact Copeland Controls S.r.l.
2.
to get the right manual.
3. GENERAL DESCRIPTION
The XM660K/XM669K controllers are designed for medium- and low-temperature ducted applications. These
instruments can be fitted into a small Local Area Network (LAN) able to handle up to 8 different sections, which,
depending on the relevant programming, may either act as single controllers or execute the commands of other
controllers. The XM660K/XM669K devices are equipped with 4/6 relay outputs respectively for controlling the
solenoid valve, defrost function (either with hot gas or resistors), evaporator fans, light and alarms (XM669K), as
well as for controlling an auxiliary configurable output (XM669K). They are also equipped with a specific output
for controlling the ON/OFF electronic expansion valve. These instruments offer up to 6 configurable probes for
controlling supply and return air, defrost end temperatures and display temperatures, as well as for overheating
management. Furthermore, the XM660K/XM669K models are equipped with 3 digital potential-free inputs with
parameter-based configuration.
Instruments are equipped with HOTKEY that makes it easy to program. The RS485 serial output is used to
interface the devices with the XWEB monitoring and supervision systems. A clock (RTC) is available as an option.
The HOTKEY connector may be used to connect the X-REP repeater display.
4. INSTALLATION AND MOUNTING
Il dispostivo va montato su barra DIN.
1592023160 XM660K_XM669K GB r4.2 02.10.2024.docx
This device can operate without any user interface, but normal application is with Copeland CX660
keyboard.
Figure 1a
Figure 1c
5. WIRING DIAGRAM AND CONNECTIONS
5.1 IMPORTANT NOTE
XM device is provided with disconnectable terminal block to connect cables with a cross section up to 1.6 mm
all the low voltage connection: the RS485, the LAN, the probes, the digital inputs and the keyboard. Other inputs,
power supply and relay connections are provided with screw terminal block or fast-on connection (6.2 mm). Heat-
resistant cables have to be used.
Before connecting cables make sure the power supply complies with the instrument's requirements. Separate the
probe cables from the power supply cables, from the outputs and the power connections. Do not exceed the
maximum current allowed on each relay, in case of heavier loads use a suitable external relay.
N.B. Maximum current allowed for all the loads is 16A. The probes shall be mounted with the bulb upwards to
prevent damages due to casual liquid infiltration. It is recommended to place the thermostat probe away from air
streams to correctly measure the average room temperature. Place the defrost termination probe among the
evaporator fins in the coldest place, where most ice is formed, far from heaters or from the warmest place during
defrost, to prevent premature defrost termination.
5.2 – ALL POWER SUPPLY
XM660K
5.3 XM669K – 230VAC VALVES
NOTE: the jumper indicated as JMP is located inside the box; PLEASE DISCONNECT
THE POWER SUPPLY BEFORE MOVING IT. This jumper may be closed only in case
of 24Vac valve control.
5.4 XM669K – 24VAC VALVES
NOTE: the jumper indicated as JMP is inside the case of the controller
DISCONNECT THE POWER SUPPLY BEFORE MOVING IT.
case of driving 24Vac valve.
XM660K - XM669K
The CX660 keyboard shall be
mounted on vertical panel, in a
29x71 mm hole, and fixed using the
special bracket supplied as shown in
fig. 1a/1b. The temperature range
allowed for correct operation is 0 to
60°C. Avoid places subject to strong
vibrations, corrosive
excessive dirt or humidity.
The same recommendations apply
to probes. Let air circulate by the
cooling holes.
Figure 1b
PLEASE
This jumper has to be closed only in
gases,
for
2
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