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Verfügbare Sprachen
Verfügbare Sprachen
M a n u a l m o d e o p e r a t i o n
Press
and
together for 5 seconds to access to manual mode operation.
List of parameters in scrolling sequence by pressing
Code Parameter description and choices
1Ho
Manual mode operation; circuit 1
0 = off
1 = on
1HP
Valve opening (%)
2Ho
Manual mode operation; circuit 2
0 = off
1 = on
2HP
Valve opening (%)
NOTE: During manual operation, functional alarms such as low superheat are
disabled. It is recommended to monitor the system operation when the controller is
operated manually. Manual operation is intended for service or temporary operation
of valve at a specific condition. After achieving the required operation, set the
parameter 1Ho and 2Ho at 0 so the controller automatically operates the valve(s)
according to its setpoint(s).
L i s t
o f
p a r a m e t e r s
i n
b u t t o n :
Code
Parameter description and choices
H5
Password
Adr
ModBus address
br
Modbus baudrate
PAr
Modbus parity
-C2
Circuit 2 of EXD-HP2 enabled
0 = Enabled
-uC
Units conversion
0 = °C, K, bar
This Parameter effects only the display. Internally the units are always SI-based.
HP-
Display mode
0 = No display
1 = Circuit 1
Parameters Circuit 1
Code Parameter description and choices
1uE
Function
0 = Superheat control
1 = Economizer control (Only for R410A/R407C/R32)
1u4
Superheat control mode
0 = Standard control coil heat exchanger
1 = Slow control coil heat exchanger
2 = fixed PID
3 = fast control plate heat exchanger (not for 1uE = 1)
4 = Standard plate heat exchanger (not for 1uE = 1)
1u0
Refrigerant
0 = R22
1 = R134a
5 = R290
6 = R448A
10 = R454B 11 = R454C 12 = R513A 13 = R452B 14 = R1234ze
15 = R1234yf
*) EXN not permitted
WARNING -Flammable refrigerants: EXD-HP1/2 has a potential ignition
source and does not comply with ATEX requirements. Installation only in
non-explosive environment. For flammable refrigerants only use valves
and accessories approved for it!
1uP
Installed pressure sensor type
0 = PT5(N)-07...
1 = PT5(N)-18...
2 = PT5(N)-30...
3 = PT5N-10P-FLR
1uu
Start valve opening (%)
1u9
Start opening duration (s)
1uL
Low superheat alarm function
0 = disable (for flooded evaporator)
1 = enable auto reset
2 = enable manual reset
1u5
Superheat set-point (K)
If 1uL = 1 or 2 (enabled auto or manual reset)
If 1uL = 0 (disabled)
1u2
MOP function
0 = disable
1u3
MOP set-point (°C) saturation temperature
Factory setting according to selected refrigerant
(1u0). The default value can be changed
1P9
Low pressure alarm mode circuit 1
0 = disabled
2 = enabled manual reset
1PA
Low pressure alarm cut-out circuit 1
1Pb
Low pressure alarm delay circuit 1
1Pd
Low pressure alarm cut-in circuit 1
1P4
Freeze protection alarm function
0 = disabled,
2 = enabled manual reset
1P2
Freeze alarm cut-out circuit 1
1P5
Freeze protection alarm delay (s)
Emerson Climate Technologies GmbH
Pascalstrasse 65 I 52076 Aachen I Germany
O P E R A T I N G I N ST RU C T I O N S
ModBus communication capability
button
Min
Max
0
1
0
100
0
1
0
100
s c r o l l i n g
s e q u e n c e
b y
Min
1
1
0
0
0
1 = Disabled
0
1 = F, psig
0
2 = Circuit 2 (only EXD-HP2)
Min
0
0
0
2 = R410A
3 = R32
4 = R407C
7 = R449A
8 = R452A
9 = R454A*
0
10
1
0
3
0.5
0
1 = enable
see MOP table
0
1 = enabled auto reset
-0.8
5
0.5
0
1 = enabled auto-reset
-20
5
www.climate.emerson.com/en-gb
EXD-HP1/2 Controller with
Code Parameter description and choices
1P-
Superheat control circuit 1 fixed PID (Kp factor)
Display 1/10K
Factory
Field
1i-
Superheat control circuit 1 fixed PID (Ti factor)
setting
setting
1d-
Superheat control circuit 1 fixed PID (Td factor)
0
Display 1/10K
1EC
Hot gas temperature sensor source
0
0 = ECP-P30
0
1 = Via Modbus input
1PE
Economizer control circuit 1 fixed PID
0
(Kp factor)
1iE
Economizer control circuit 1 fixed PID
(Ti factor)
1dE
Economizer control circuit 1 fixed PID
(Td factor)
High superheat alarm mode circuit 1
1uH
0 = disabled
1 = enabled auto-reset
1uA
High superheat alarm setpoint circuit 1
p r e s s i n g
1ud
High superheat alarm delay circuit 1
Positive correction of measured Hot gas
Factory
1E2
Max
temperature.
setting
1999
12
Parameters Circuit 2 (only EXD-HP2)
127
1
1
1
Code
1
0
1
0
2u4
Superheat control mode
0 = Standard control coil heat exchanger
1
0
1 = Slow control coil heat exchanger
2 = fixed PID
3 = fast control plate heat exchanger
2
1
4 = Standard plate heat exchanger
2u0
System Refrigerant
0 = R22
5 = R290
10 = R454B 11 = R454C 12 = R513A 13 = R452B 14 = R1234ze
Factory
15 = R1234yf
Max
setting
*) EXN not permitted
1
1
source and does not comply with ATEX requirements. Installation only in
non-explosive environment. For flammable refrigerants only use valves and
4
0
accessories approved for it!
2uP
Installed pressure sensor type
(When DI2 is off)
0 = PT5(N)-07...
2 = PT5(N)-30...
2uu
Start valve opening (%)
15
2
2u9
Start opening duration (s)
2uL
Low superheat alarm function
0 = disable (for flooded evaporator)
1 = enable auto reset
2 = enable manual reset
2u5
Superheat set-point (K)
If 2uL = 1 or 2 (enabled auto or manual reset)
If 2uL = 0 (disabled)
2u2
MOP function
0 = disable
3
2
1 = enable
2u3
MOP set-point (°C) saturation temperature
Factory setting according to selected refrigerant
100
20
(2u0). The default value can be changed
30
5
Low pressure alarm mode circuit 2
2
1
0 = disabled
2P9
1 = enabled auto reset
2 = enabled manual reset
2PA
Low pressure alarm cut-out (bar) circuit 2
2Pb
Low pressure alarm delay (sec) circuit 2
30
6
2Pd
Low pressure alarm cut-in (bar) circuit 2
30
6
2P4
Freeze protection alarm function
1
1
0 = disable
2 = enable manual reset
2P2
Freeze alarm cut-out circuit 2
2P5
Freeze protection alarm delay (s)
2P-
Superheat control circuit 2 (Kp factor),
2
0
fixed PID
2i-
Superheat control circuit 2 (Ti factor),
fixed PID
17.7
0
2d-
Superheat control circuit 2 (Td factor),
199
5
fixed PID
18
0.5
High superheat alarm mode circuit 2
2
0
2uH
0 = disabled
1 = enabled auto-reset
2uA
High superheat alarm setpoint (K) circuit 2
5
0
2ud
High superheat alarm delay (Min) circuit 2
199
30
Display 1/10K
Display 1/10K
Parameter description and choices
1 = R134a
2 = R410A
6 = R448A
7 = R449A
WARNING -Flammable refrigerants: EXD-HP1/2 has a potential ignition
1 = PT5(N)-18...
3 = PT5N-10P-FLR
1 = enable auto-reset
Display 1/10K
- Display 1/10K
OI_EXD-HP12_A1_A2L_A3_EN_DE_RU_Rev08_865921.docx
EN
Factory
Min
Max
setting
0.1
10
1.0
1
350
100
0.1
30
3.0
0
1
0
0.1
10
2.0
1
350
100
0.1
30
1.0
0
1
0
16
40
30
1
15
3
0
10
0
Factory
Min
Max
setting
0
4
0
0
5
2
3 = R32
4 = R407C
8 = R452A
9 = R454A*
0
3
1
10
100
20
1
30
5
0
2
1
3
30
6
0.5
30
6
0
1
1
see MOP table
0
2
0
-0.8
17.7
0
5
199
5
0.5
18
0.5
0
2
0
-20
5
0
5
199
30
0.1
10
1.0
1
350
100
0.1
30
3.0
0
1
0
16
40
30
1
15
3
Date: 30.06.2022
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