English
This document is subject to change without notice
IS_ER54 ER55_24-85737-1358 Rev. A
Technical Specification
Main Function
Messages and Error Codes
Temperature Menu
Setpoint Menu
Clock Menu
Product Codes
ER54-PMW-xx1C
ER55-DR230-xx1C
Power Requirements
115-230 VAC/VDC ±10%,
50/60 hZ, 3 W
230 VAC/VDC ±10%,
50/60 hZ, 3 W
Protection Class
IP55 (front) - IP20 (back)
IP20
Ambient Operating
Conditions
-10 °C to 50 °C
15 to 80% RH (non-condensing)
Real Time Clock battery
>150 hours, self-rechargeable
Range
-40 to 70 °C
Accuracy
+/- 1K
Sensor
NTC, A99
Relay Outputs
see figure 3
see figure 4
Dimensions
see figure 1
see figure 2
Compliance
CE Mark, Low Voltage Directive 2006/95/EC
CE Mark, EMC directive 2004/108/EC
Positive and Negative
Temperature
Keyboard Lock
Direct Power Supply
Real Time Clock
Communication Port
Copying Key
Thermostat Control
Fan Control
Defrost Control
Light Control
Temperature Alarm
(High/Low)
Temperature Monitoring
(Min/Max)
Multifunction Input
Auxiliary Output
Code
Description
Action
F1
t1 sensor failure
To check t1 wiring or replace it
F2
t2 sensor failure
To check t2 wiring or replace it
F3
t3 sensor failure
To check t3 wiring or replace it
A1
General alarm
To resolve alarm cause
A2
Report alarm
To resolve alarm cause
A3
Door open
To close the door
Fon
Fan only mode
To reset fan only mode with Digital Input
oFF
Standby
To restart unit with keyboard or Digital Input
d
Defrost active
To wait defrost completion
hi
High temperature alarm
To check plant (abnormal temperature)
Lo
Low temperature alarm
Code
Description
t1
Return air temperature
t2
Evaporator temperature (visible only if selected)
t3
Discharge air / 2nd Evaporator temperature (visible only if selected)
thi
Monitored temperature highest peak
tLo
Monitored temperature lowest peak
Loc
Keyboard lock parameter
Code
Description
cSP
Setpoint
Code
Description
MM
Minutes
hh
Hours
dAY
Day of the week
Summary of Contents for ER54
Page 3: ...Figure 4 ER54 Wiring diagram Figure 5 ER55 Wiring diagram ...
Page 33: ......