CAREL UCHBP00000190 μChiller Controller Instruction Manual

CAREL UCHBP00000190 μChiller Controller

Description

μChiller is the Carel solution for complete management of air/water and water/water chillers and heat pumps. The maximum confi guration manages 2 compressors per circuit (On/Off or BLDC), up to a maximum of 2 circuits (using an expansion card for the inputs and outputs on circuit 2). The distinctive element of μChiller is complete control of high-effi ciency units through integrated management of electronic expansion valves (ExV) and brushless DC compressor, thus ensuring greater compressor protection and reliability, together with high unit effi ciency. The user terminal allows
wireless connectivity with mobile devices and is integrated into the panel- mounted models, or purchased separately on DIN rail mounted models. The CAREL “APPLICA” app, facilitates configuration of the parameters and unit commissioning in the fi eld. The operation of μChiller is described in the user manual + 0300053EN downloadable, even prior to purchase, from the website www.carel.com.

CODES

Cod.

| Assembly| Connectiv.| ****

Compressor managem.

| Type (*)| Electronic expansion valve (ExV) management
UCHBP00000190| panel| NFC| On-Off| S| bipolar: with EVDevo driver
UCHBP00000200| panel| NFC, BLE| On-Off| S| bipolar: with EVDevo driver
UCHBD00001230| DIN rail| –| On-Off| S| bipolar: with EVDevo driver
UCHBDE0001150| DIN rail| –| On-Off| E| unipolar: built-in

bipolar: with EVDevo driver

UCHBDH0001150| DIN rail| –| On-Off, BLDC| HE| unipolar: built-in

bipolar: with EVDevo driver

| | | | |
UCHBE00001230:

2nd circuit expansion

| DIN rail| –| On-Off, BLDC| –| bipolar: with EVDevo driver
UCHBE00001150:

2nd circuit expansion

| DIN rail| –| On-Off, BLDC| –| unipolar: built-in

bipolar: with EVDevo driver

(*) Type: S=standard, E = enhanced, HE = high eff ciency

USER TERMINAL

Key

1. Keypad
2. Main fi eld
3. Icons: device status & operating mode

Icons

Keypad

MOBILE DEVICE

The “Applica” app can be used to confi gure the μChiller controller from a mobile device (smart-phone, tablet), via NFC (Near Field Communication) or BLE (Bluetooth Low Energy). Procedure (modify parameters):

1. download the CAREL “Applica” app for Android and o iOS devices;
2. (on the mobile device) activate NFC/Bluetooth communication and data connection;
3. open Applica;

Using NFC

• move the mobile device near to the user terminal, maximum distance 10 mm, so as to recog-nise the confi guration (Fig. 2 – ref. A);
• enter the password (*);
• set the parameters as needed;
• move the mobile device near to the user terminal again to upload the confi guration parameters (Fig. 2 – ref. B);

Using BLE

• move the mobile device near to the user terminal, maximum distance 10 m, to recognise the confi guration (Fig. 2 – ref. C);
• enter the password (*);
• set the parameters as needed.
  (*) pre-assigned by the chiller manufacturer to allow maintenance only by authorised service technicians.

Important: during the fi rst connection, Applica aligns itself with the software version on the μChiller controller via a cloud connection; this means a mobile data connection is needed at least for this fi rst connection.

COMMISSIONING

Note: for further information see user manual cod. +0300053EN. Once the Carel “Applica” app has been installed and opened (see the paragraph “Mobile device”, proceed as follows:

ALL MODELS:

1. With Bluetooth devices, access the Service menu by clicking the icon at the bottom right. With NFC devices, the Service menu is already displayed by default;

2. click “Set-up”–> “Confi gurations” –>”Defaults” (fi gure);
   MODELS: STANDARD, ENHANCED (Note: see the code table)

3. select the refrigerant used in the unit;
   MODELS: HIGH EFFICIENCY (Note: see the code table)
   select the compressor used in the unit;
   ALL MODELS:

4. apply the selected confi guration via NFC or Bluetooth. The refrigerant has now been correctly confi gured (models: Standard, Enhanced)/ the model of BLDC compressor and the refrigerant have been correctly confi gured (models: High Eff ciency);

5. continue confi guring the unit by selecting the “Unit set-up” menu, pressing the PREV / NEXT buttons to scroll through all of the confi guration parameter pages;

6. apply the parameters confi gured via NFC / Bluetooth to the controller.

ALARM TABLE

Code Description

Unit

temperature probe
A008| user pump 1 overload| A009| user pump 2 overload
A10| flow switch (with user pump 1 active) A11| flow switch (with user pump 2 active)
A12| user pump group| A13| user pump 1 maintenance
A14| user pump 2 maintenance| A15| high chilled water temperature
A16| source return water/air temper. probe| A17| source pump 1 maintenance
A18| free cooling warning| A19| Circuit 1: condensation pressure probe

Circuit 1

transducer

| low pressure transducer
A28| frost protection evaporation temperat. A30| compressor 1 overload
A31| compressor 2 overload| A32| compressor 1 maintenance
A33| compressor 2 maintenance| A34| source fan maintenance

EVD Circuit 1

BLDC Circuit 1

Speed Drive Circuit 1

Secondary unit

Circuit 2

transducer

A60| low pressure transducer| A61| frost protection evaporation temperat.
A63| compressor 1 overload| A64| compressor 2 overload
A65| compressor 1 maintenance| A66| compressor 2 maintenance
A67| source fan maintenance|

EVD Circuit 2

BLDC Circuit 2

temperat.

Speed Drive Circuit 2

TECHNICAL SPECIFICATIONS

(for both models)

Technical specifications, μChiller PANEL and DIN

Physical specifications

IP65 (front, panel model)
IP00 (DIN version)
Front cleaning| Use soft, non-abrasive cloth and neutral detergent or water

Environmental conditions

• Operating conditions – 20T60°C, <90% RH non-condensing.
• Storage conditions – 40T80°C, <90% RH non-condensing.

Electrical characteristics

• Rated power supply voltage 24 Vac/dc (provided by SELV or PELV Class 2 power supply)
• Oper. power sup. voltage 24 Vac/dc, +10% -15%;
• Input frequency (AC) 50/60Hz
• Max current draw Panel and DIN without ExV valve driver:600mArms
• DIN with ExV valve driver: 1.25 Arms
• Absorbed power for transformer
• sizing Panel and DIN without ExV valve driver: 15 VA
• DIN with ExV valve driver: 30 VA
• Clock precision ± 50ppm; date/time retention after shutdown: 72h
• Software class and struc. A
• Environmental pollution 3
• Class of protection against
• electric shock
• To be incorporated into class I or II appliances
• Type action and discon. 1.C
• Rated impulse voltage relay output: 4kV; 24 V input: 0.5 kV
• Surge immunity category relay output: III; 24 V input: II
• Control device construc. Device to be incorporated
• Terminal block Plug-in male-female. Wire sizes: see the connector table
• Purpose of the control Electrical operating control

User interface

• Buzzer Panel: integrated
  • DIN: not included on the controller, integrated on the user terminal
• Display LED 2 rows, decimal point, and multi-function icons

Connectivity

NFC                     Max distance 10mm, variable according to the mobile device used

Bluetooth Low Energy| Max distance 10m, variable according to the mobile device used
---|---
BMS serial interface| Modbus over RS485, not opto-isolated
FieldBUS serial interface| Modbus over RS485, not opto-isolated;

Max. number of devices that can be connected: 20

HMI interface| Modbus over RS485, not opto-isolated

Analogue inputs (Lmax=10m)
Ref.

J2| S1, S2, S3: NTC| NTC: resolution 0.1° C; 10k @ 25°C;

error: ±1°C in the range -50T50°C, ±3°C in the range 50T90°C

0-10 V: error 2% fs, typical 1%

4-20mA: error 5% fs, typical 1%

0-10 V: error 2% fs, typical 1%

---|---|---
S5: 0-5V rat /4-20 mA / NTC
J3| S4: 0-5V rat /4-20 mA / NTC
S6: NTC / 0-5 Vrat / 0-10 V / 4-20mA
J9| S7: NTC – avail. only on DIN version

Digital inputs

J2| ID1(*)| Voltage-free contact, not opto-isolated, typical closing current 6 mA, open contact voltage 13 V,

contact resistance max 50 Ω.

(*) Fast digital input: 0-2 kHz; error 2% fs

---|---|---
J2| ID2
J3| ID3 (*), ID4, ID5,
J9| ID6 – available only

on DIN version

Valve output

J14| available only on DIN version| CAREL E*V unipolar valve power supply: 13 Vdc, min.

winding resistance 40 Ω

---|---|---

Analogue outputs
Ref.

Digital outputs

J6| NO1 (5A), NO2 (5A),

NO3 (5A), NO4 (5A)

| 5A: EN60730: 5 A resistive, 250 Vac, 50k cycles; 4(1), 230 Vac,

100k cycles; 3 (1), 230 Vac, 100k cycles

UL60730: 5 A resistive, 250 Vac, 30k cycles; 1 FLA, 6 LRA, 250 Vac, 30k cycles; Pilot Duty C300, 30k cycles

---|---|---
J7| NO5 (5A)
J11| NO6 (5A)- available only

on DIN version

Note: the sum of the current drawn by NO1, NO2, NO3 and N04 must not exceed 8A.

Emergency power supply

J10| Ultracap module (optional, only available on the DIN versions)| 13 Vdc +/-10%
---|---|---

Probe and terminal power supply

5V| 5 Vdc ± 2% to power the 0 to 5 V ratiometric probes. Maximum current delivered: 35mA

protected against short-circuits

---|---
+V| 8-11 V to power the 4-20 mA current probes. Max current delivered: 80 mA protected

against short-circuits

VL| not used
J8| 13 Vdc ± 10% to power the user terminal

Cable lengths

Analogue inputs/outputs, digital inputs/outputs, probe power| <10m (*)

(*) in the panel version, if using the VL power supply in household environments, the maximum cable length is 2 m.

---|---
Valve| <2 m, <9 m with shielded cable
BMS and Fieldbus serial cables| <500m with shielded cable

Conformity

Radio

| Red| EN301489-1/EN301489-17, EN300328
FCC| Contains FCC ID: WAP2001
IC| Contains IC: 7922A-2001

ANATEL

| ID: 03780-21-05684 – Este equipamento não tem direito à proteção contra

interferência prejudicial e não pode causar interferência em sistemas devida- mente autorizados.

APPLICATIONS WITH FLAMMABLE REFRIGERANT GAS

About the use of this product (except SSR versions) with A3, A2 or A2L fl ammable refrigerants, ithas been evaluated and judged compliant with the following requirements:

• Annex CC of IEC 60335-2-24:2010 referenced by clause 22.109 and Annex BB of IEC 60335-2- 89:2019 referenced by clause 22.113; components that produce arcs or sparks during normal operation have been tested and found to comply with the requirements in UL/IEC 60079-15;
• IEC 60335-2-24:2010 (clauses 22.110)
• IEC 60335-2-40:2018 (clauses 22.116, 22.117)
• IEC 60335-2-89:2019 (clauses 22.114)

Surface temperatures of all components and parts have been measured and verifi ed during the tests required by IEC 60335 cl. 11 and 19, and found not exceeding 268 °C.
Models with SSR comply with standard IEC 60335-2-40:2018 in case of using A2L refrigerants (e.g. R32); in detail, electrical components that could be a source of ignition under normal operation are in compliance with Annex JJ, and the maximum surface temperature of all components does not exceed 268°C, during normal operation.
Acceptability of these controllers in end use application where fl ammable refrigerant is used shall be reviewed and judged in the end use application.
(*) Applicable to the products with revision above 1.5xx.

MODELS AND OPTIONS

• Model type Description
• ACU4 PANEL 4 relays + NFC
• ACU4B PANEL 4 relays + NFC/BLE
• ACU5 PANEL 5 relays + NFC
• ACU5B PANEL 5 relays + NFC/BLE
• ACUD4L DIN 4 relays 24V
• ACUD4LN DIN 4 relays 24V + NFC
• ACUD4LB DIN 4 relays 24V + NFC/BLE
• ACUD5L DIN 5 relays 24V
• ACUD5LN DIN 5 relays 24V + NFC
• ACUD5LB DIN 5 relays 24V + NFC/BLE
• ACUD5YL DIN 5 relays + 2xAO 24V
• ACUD5YLN DIN 5 relays + 2xAO 24V + NFC
• ACUD5YLB DIN 5 relays + 2xAO 24V + NFC/BLE

PANEL MOUNTING MODEL

Dimensions – mm (in)

Mounting

Place the controller in the opening, press lightly on the side tabs and then on the front until fully inserted (the side tabs will bend, and the catches will attach the controller to the panel).
Important: IP65 front protection is guaranteed only if the following conditions are met:

• maximum deviation of the rectangular opening from fl at surface: ≤ 0.5 mm;
• thickness of the electrical panel sheet metal: 0.8-2 mm;
• maximum roughness of the surface where the gasket is applied: ≤ 120 μm.
  Note: the thickness of the sheet metal (or material) used to make the electrical panel must be adequate to ensure safe and stable mounting of the product.

Disassembly

Open the electrical panel from the rear and press the anchoring tabs and then the controller to remove it.
Important: The operation does not require the use of a screwdriver or other tools.

DIN RAIL MOUNTING

Dimensions mm (in)

Mounting

WIRING CONNECT

Connection: panel mounting

Connection: DIN rail mounting

Probe connection (all mod.)

Ratiometric probe connection

4-20mA probe connection

Note: = GND

Disposal of the product: The appliance (or the product) must be disposed of separately in accordance with the local waste disposal legislation in force.
Warning: separate as much as possible the probe and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance. Never run power cables (including the electrical panel wiring) and signal cables in the same conduits.

CAREL INDUSTRIES HQs
Via dell’Industria, 11 – 35020 Brugine – Padova (Italy)

• Tel. (+39) 0499716611
• Fax (+39) 0499716600
• e-mail: carel@carel.com
• www.carel.com

References

• CAREL

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