Download User`s Guide

INTIEL
THE ELECTRONICS ON YOUR SIDE
Controller for cooling chambers and heat pumps
type: CMHP
User’s Manual
Bulgara
Pomorie
www.intiel.com
str. “Peter Beron”, № 9
tel:+359596/33366
fax: +359596/32580
e-mail:[email protected]
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1. Application
The controller is designed to drive cooling chambers or heat pump
type air - air, air - water, water – water operating with one or two compressors.
2. Operation
The regulation is performed by a temperature in the chamber when it is cooling
chambers or by outlet temperature when heat pumps (sensor T1) according to the
set temperature.
In heat pump unit operates in heating or cooling, depending on the selected
mode
Compressor operation:
Cooling or
Cooling
chamber
heating
10V
output 0-10V
0V
Т1
К2
К1
Hys
Hys/2
Тset
Hys/2
Т1 – outlet temperature, or
temperature within the
chamber
Тset – setting
К1,К2 – compressors
Хис – hysteresis
Hys
Of the graph is shown working with two compressors for constant load they
take turns (which first turn on, turn off first).
Fans operation:
heating
cooling
10V
0V
output 0-10V
Т3
В2
Т2
В1
Hys
Тset
Т2,Т3 – temperature of the
evaporator / condenser
Тset – setting
В1,В2 – fans
Хис – hysteresis
Hys
Of the graph shows operation of the fans by evaporator temperature / condenser
(sensors T2, T3), where the option is selected to work with the compressor graph is
analogous to the work of the compressors. (see settings fans)
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Operation of defrosting:
Defrosting is performed only in "Heating"
or option cooling chamber.
output 0-10V
К1
Т2– evaporator temperature
T4 – ambient temperature
dT – temperature difference
К1– Compressor
В1 – Fan
RV – вентил за обръщане на
посоката
RV
Delay at Start
time
dropping
В1
Delay at end
Т2
dT=T4 – T2 ; T2<0
time of entry into
defrosting
Time of the end
defrosting
Start
Т End
defrost.
End
The graph shows the defrosting by the compressor and reversing the direction in
systems with only one compressor.
Defrosting can be done only by heaters or fan in refrigerators, not allowed
reversal of the freon (RV = 0) and the heater (heater = 0). (see defrost settings)
Start defrosting happens at the time or at the temperature difference (dT)
between surrounding temperature (sensor T4) and the temperature of the evaporator
/ condenser (sensor T2, T3).
End of defrosting happens when the temperature reaches T2 of the end or at the
timeand in this case error message displays. The next exit on the temperature error
will be cleared.
In the refrigerating chambers entry into defrost run only during.
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3. Front panel
1
2
3
4
1 – display;
2 - button to change the "Next";
3 - button to change "back";
4 - button to enter / exit the programming mode, start / stop on hold for about 5
seconds (Sw2);
Description of the display:
3
2
4
1
5
13
12
11
10
9
8
7
6
1 - measured temperatures;
2 – application;
3 – setting of the maintain the temperature;
4 – setting fans temperature;
5 – setting a temperature difference of entry into defrost;
6 – presence of error message;
7 - operating valve reverse;
8 – heating mode  / cooling mode ;
9 – defrost;
10 – switched on defrost heater;
11 – operation the fans;
12 – compressor operating or clock flashing  (time);
13 – pump operation at air / water and water / water,
- fan in an air / air and
in cooling chamber;
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4. Programing
Setting parameters are divided into two groups. General open access and service
access with a password.
4.1 General settings. With the buttons "▲" or "▼" scroll until the display shows
the current temperatures menu, then press "▄":
Common Settings
*Theat
50°C
Tcool
20°C
Hys
10°C
EXIT
To select a setting, move the cursor "*" with buttons "▲" or "▼", to make a
change and return to the choice of setting press "▄".
Setting that changes start flashes, with buttons "▲" or "▼" can change its value.
After completing the settings, select "EXIT" and press "▄" to save the changes.
name
meanings
limits
factory
settings
Heat setting
Cool setting
hystiresis
Theat
Tcool
Hys
-30 – 80 °C
-30 – 80 °C
2 – 20 °C
50 °C
-20 °C
5 °C
(note)
4.2 Setting service. With the buttons "▲" or "▼" scroll until the display shows
"Service settings", then press "▄".
The password is 123. The numbers are introduced successively 1, 2 and 3
after each digit press button "▄".
4.2.1 Settings for the compressors. With the buttons "▲" or "▼" scroll until
the display shows "Compressor settings", then press "▄".
To select a setting, move the cursor "*" with buttons "▲" or "▼", to make a change
and return to the choice of setting press "▄".
Setting that changes flashes, with buttons "▲" or "▼" can change its value.
After completing the settings, select "EXIT" and press "▄" to save the changes.
name
meanings
limits
Number of
compressors
Delay at ON
Count of
compr.
1–2
factory
settings
2
Delay at ON
Min. time
work
Min. time
OFF
0 – 255 s
0 – 255 s
0s
0s
0 – 255 s
0s
0 – 255 s
only
refrigerating
chambers
0s
Min. time work
Min. time OFF
Stop after off
the valve /FV/
Stop after FV
6
(note)
4.2.2 Defrost settings. With the buttons "▲" or "▼" scroll until the display
shows the inscription "Defrost settings", then click "▄":
For selection of setting. Move the cursor "*" with buttons "▲" or "▼", to make a
change and return to the choice of setting, press "▄".
Setting that changes flashes with buttons "▲" or "▼" can change its value.
After completing the settings, select "EXIT" and press "▄" to save the changes.
name
meanings
limits
factory
settings
dT
0 – 30 °C
10 °C
T for end
0 – 20 °C
20 °C
Start by time
0 – 900 min
0 min
End by time
0 – 255 min
0 min
Delay at start
0 – 255 s
0s
meanings
limits
factory
settings
Dripping time
Heater
Delay at end
Dripping time
Heater En/Dis
0s
10 s
0
Reversing
valve
Rev. val.
En/Dis
Type of unit
Type of unit
0 – 255 s
0 – 255 s
En – 1
Dis – 0
En – 1
Dis – 0
Air / Air – 1
Air / Water – 2
Water / Water – 3
Fridge – 4
Temperature
difference for
entry into
defrost
Temperature
for end defrost
Entry into
defrost by time
End defrost by
time
Delay at start
name
Delay at end
(note)
(note)
0
1
4.2.3 Fans settings. With the buttons "▲" or "▼" scroll until the display shows
the inscription "Fan settings", then click "▄":
For selection of setting Move the cursor "*" with buttons "▲" or "▼", to make a
change and return to the choice of setting, press "▄".
Setting that changes flashes with buttons "▲" or "▼" can change its value.
After completing the settings, select "EXIT" and press "▄" to save the changes.
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name
meanings
Heat seting
Tset_heat
limits
-30 – 80 °C
factory
settings
30 °C
(note)
--- с компресора
Cool seting
Tset_cool
-30 – 80 °C
0 °C
--- с компресора
Hysteresis
Hysteresis
2 – 20 °C
10 °C
4.3 Error note
With the buttons "▲" or "▼" scroll until the display shows the inscription
"Error messages", then press "▄": To clear the error position the cursor "*" with
buttons "▲" or "▼" to "Reset Alarms" and press "▄", or turn off and on by holding
the button "▄".
name
Low pressure
meanings
LowP
limits
OK / Err
factory settings
stops the
compressor and
fan
stops the
compressor and
fan
at refrigeration
chambers fan
stops and after
60 s and the
compressor
stops,
START/STOP
when another
application
stops the
compressor and
fan
(Reset)
atomatically
High pressure
HighP
OK / Err
Door switct
Or external
switch ON/OFF
(Sw1)
Door
(Stop)
OK / Err
Flow sensor
Flow sens
OK / Err
Defrosting
compressor 1
Defrosting
compressor 2
Defrost 1
OK / Err
-
atomatically
Defrost 2
OK / Err
-
atomatically
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manual
atomatically
manual
+
– +
–
Fan 2
0 – 10V
Heat
Cool
Flow
T4
T3
Fan 1
0 – 10V
T2
Compr.
0 – 10V
T1
Door
(Stop)
HP
data and electrical connection
LP
5. Technical
+
–
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
1
2
3
4
5
6
7 8
9 10 11 12 13 14 15 16
17 18 19 20 21 22 23
Pump
Fan
FV
Reverse
valve
heater
Fan 2
Fan 1
Compr. 2
Compr. 1
L
N
- Inputs "LP", "HP", "Flow", "Door" should be closed for normal operation when
not in use put a bridge between the terminals.
- Input "Heat / Cool" in open contact mode is "heating" mode "cooling" at closed
contact.
Technical data:
Supply voltage
Sensors Pt 1000 temperature
Inputs contact sensors
Relay output
Analog outputs
Measuring range
Measurement unit
Humidity
Degree of protection
~ 230V/50Hz
(-50 to +250 ° C)
independent contact
contact ~ 220V/3A
0 - 10V/max.10mA
-30 +100 ° C
1°C
up to 80%
IP20
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6. Example
of application
Air/air
air / water
Fan 2
Fan 1
T2
T4
T3
condenser
Fan 1
condenser
T2
T4
Fan 2
Flow
T1
T3
condenser
condenser
T1
heater
heater
heater
RV
evaporator
evaporator
heater
RV
RV
RV
Pump
(Fan)
HP
LP
Compressor 2
HP
LP
Compressor 1
Pump
(Fan)
HP
LP
Compressor 1
HP
LP
Compressor 2
Shown in the diagram have a reversal of the hot vapor from the compressor.
When there is a defrost by reverse warm air or water the flap or valve reverse
connect in place of the heater and choose the option to defrost heater.
In the system air / air, the main ventilator is connected to the terminals of a
pump.
Water/water
cooling chamber
Cooling volume
Door
Flow
T1
T4
T2
condenser
Fan 1
RV
RV
LP
HP
Compressor 1
Pump
(Fan)
Evaporator
Condenser
heater
heater
RV
T3
Evaporator
heater
evaporator
T2
heater
Fan 2
T1
T3
condenser
RV
HP
LP
Compressor 2
HP
LP
Compressor 1
Pump
HP
LP
Compressor 2
In the cooling chamber when the compressor is stopped by gathering freon, freon
valve connects to the place of the pump.
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8. Warranty
The warranty period is 24 months following the purchase date of the unit
or its installation by an authorized Engineering Company, but not exceeding 28
months after the production date. The warranty is extended to the malfunctions that
occur during the warranty period and are result of the production reasons or
defective used parts.
The warranty does not relate to malfunctions corresponding to notqualified installation, activities directed to the product body interference, not regular
storage or transport.
The repairs during the warranty period can be done after correct filling of
the manufacturer warranty card
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