8
ENG
easy/easy compact/easy split +030220791 - rel. 3.2 - 13.07.2010
X and Y models (PJEZX*, PJEZY*)
These are designed for the management of static units operating at
low temperature (that is, below 0ºC), which require active defrost using
electric heaters or the injection of hot gas. The PJEZ(Y,X)*, in fact, as well
as working as a thermometer and a thermostat (like the PJEZS), also
manages the defrost actuator. The frequency and duration of the defrost
can be set. The end defrost can occur according to the temperature
reached (connecting a probe to the evaporator) or by time. In addition
these models feature two probe inputs, for the control probe (room), the
defrost probe, and a digital input (this can also be con gured as a probe).
There are two outputs, for controlling the actuator (compressor
) and the
defrost
. Models PJEZY and PJEZX di er in that:
• PJEZY has relays that are electrically connected together;
• PJEZX has independent relays.
C models (PJEZC*)
The most complete solution for low temperature ventilated units, with
three relays for complete control of the compressor, fan and defrost
functions. The three relays are included in the very compact case in the
versions with 230 V or 115 V power transformer, without compromising
the performance or reliability of the product.
M models (PJEZM*)
Solution for simply measuring the temperature.
Summary table of the functions associated with the models
function see
par.
easy easy compact easy split
mod.
C
mod.
X
mod.
Y
mod.S mod.M mod.S mod.M mod.
S
mod.
C
2 probes +
multifun.
input
1
probe
2 probes +
multifun.
input
1
probe
2
prbs
1
probe
2
prbs
1
probe
temperature display 4.2
temperature measurement in °C/°F 4.2
*
*
parameter access using password 5.4
*
*
set point modi cation 3.5
*
*
night-time set point management 4.3
-
-----
enable/disable direct probe 2 alarm 4.2 - - - - -
---
---
temperature probe calibration 4.1
*
*
temperature control in DIRECT mode 4.3
--
--
temperature control in REVERSE mode 4.3
--
--
compressor protectors 4.6
--
--
duty setting 4.4
--
--
continuous cycle 4.5
--
--
defrost 4.7
--
--
high/low temperature alarm 4.8
*
*
dirty condenser alarm 4.8
-
-
-
-
evaporator fan management 4.10
-- - -
- -----
-
ON/OFF 3.5
*
*
AUX output con guration 4.13
*
*
enable/disable keypad 4.13
*
*
enable/disable buzzer 4.13
*----
modi ed parameter detection 4.13
*
*
rapid parameter set selection 4.12
--
--
clock and time band management 4.11
--
- -----
door switch with light management 4.8 - - - - - - - ----
disable high temperature alarm when
starting
5.1--- - - - -----
second compressor output in parallel 4.13 - - - - - - - ----
second comp. output with two step control
with or without rotation
4.13 - - - - - - - ----
fan management with comp. o 4.10 - - - - - - - -----
night-time operation with light
management
4.11 - - - - - - - ----
Table 1.b
* available but cannot be set from the keypad nor the programming key.
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