Universal Controller - EET
Coldroom
ZA-10064-EET
Issue a : 14/5/97
Relay
1
Relay
2
Relay
3
Relay
4
Relay
5
Note: This simplified wiring diagram omits circuit protection
ON
1
2
3
4
5
6
7
8
(P6) Logging
(P5) Defrost terminate
(P4) Evaporator out
(P3) Evaporator in
(P2) Air off
(P1) Air on
Temperature Probes -
Bit switches
+
OPTIONS
EXECUTE
PAGE
PAGE
HOME
SELECT
Setup
Unit
Previous
controller
Next
controller
Genus or alternative
Network cable
N
L
E
Mains
Supply
Alarm or controlled remotely
by the Supervisor
Fans wired to Relay 4
N/C contact if bit switch
4 is OFF, or to N/O
contact if bit
switch 4 is ON
Defrost heater
/ drip pan heater
Suction line
valve
Electronic expansion valve
screen
red
white
black
green
blue
green
yellow
white
red
CN7
CN8
P2
P1
CN9
CN10
CN11
CN12
CN13
CN14
CN15
CN5
CN6
CN4
CN3
CN2
CN1
EET
Controller on a
Genus Network
screen
white
black
CN7
Controller on a
Woodley Network
Controller
(Fig. 2)
Defrost
Door
open
Closed
Position of probes should be in accordance
with coil manufacturers instructions
5k
If gas defrost is
required, connect
N/C S.G.V. to
Relay 3 N/C contact
-1.5
Ent
Esc
Alarm
Network
Defrost
Setup unit extension cable
-1.5
Ent
Esc
Alarm
Network
Defrost
OR
white
green
Plant fault
DIN Box Display
DIN Box Display
with Keyswitch
Bit Switch Settings (Fig. 1) : (Shaded area = Switch Position)
Off
On
Genus network
1
Alternative network
Elm Probes *
controller part no. 190887
2
PT 1000 Probes **
controller part no. 191126
Relay 5 - Remote
3
Relay 5 Switches Alarm
DIN Display Buttons
Active
4
DIN Display Buttons
Inactive
5
Coldroom option
6
7
LT Range (Frozen Food)
8
HT Range (Fresh Food)
Product Part No:
•
Universal Controller * with Elm probes:
190887
•
Universal Controller ** with PT 1000 probes: 191126
Features:
•
Controls and monitors HT and LT Coldroom
•
Features a Solid State Relay, which controls an ‘Electronic
Expansion Valve’, for improved temperature control
•
Genus or alternative network compatible
•
Full defrost control
Associated Documents:
∗
Datasheet:
ZD 10070-EET
∗
DIN Box Display:
ZF 0920-DIN
∗
Set-up Unit:
ZF 0795-DAD
∗
Using Probe Clips:
ZG 56003
∗
Health and Safety:
ZG 1056
Please Note:
The features and specifications contained in this
Installation Guide may change without notice.
Elm Ltd. shall not be liable for errors or for
incidental or consequential damages in
connection with the furnishing, performance or
use of this product or document.
Warning !
Before you work on this equipment, isolate the
electrical supply and also the live feed to any
incoming signals. Remember that live signals
may be derived from more than one source
.
