CLIMAVENETA BRH 0121 FF

Questions and Answers

K
Kimberly MclaughlinAug 13, 2025
Why is my CLIMAVENETA BRH 0121 FF Chiller not starting?
- D
  diazsherryAug 13, 2025
  Your CLIMAVENETA Chiller might not be starting due to several reasons. There could be no voltage, in which case you should check the presence of voltage and safety systems upstream of the appliance. Alternatively, a contactor coil, the HSW12 controller, or the start-up capacitor (if featured) might be faulty, requiring component replacement. Other potential causes include a faulty compressor or reversed phases (for three-phase units).
F
fpearsonAug 17, 2025
What causes high discharge pressure in CLIMAVENETA BRH 0121 FF?
- D
  Darrell RobertsAug 17, 2025
  High discharge pressure (greater than 32 bars) in your CLIMAVENETA Chiller can be caused by high outside water temperature. If this occurs, you should check the water temperature. It may also be due to a high utility water inlet temperature.
J
Jordan LawrenceAug 21, 2025
What causes low suction pressure in CLIMAVENETA Chiller?
- W
  William SmithAug 21, 2025
  Low suction pressure (less than 4 bars) in a CLIMAVENETA Chiller can stem from several factors. These include a low utility water inlet temperature, a low outside water inlet temperature, or a faulty or blocked thermostatic expansion valve, so you should check these components. It may also be caused by a blocked water filter or a blocked plate heat exchanger.
I
imurphyAug 25, 2025
How to fix noise and vibrations in CLIMAVENETA BRH 0121 FF Chiller?
- L
  Leslie MorenoAug 25, 2025
  Noise and vibrations in your CLIMAVENETA Chiller can be caused by contact between metal bodies; you should check for this. Another cause may be loose screws, so tighten them.
X
xrileyAug 28, 2025
Why is the compressor noisy in my CLIMAVENETA BRH 0121 FF Chiller?
- K
  Karen JacksonAug 28, 2025
  A noisy compressor in your CLIMAVENETA Chiller may be caused by liquid returning to the compressor, which you should check. Another possible cause is inadequate fastening.
D
Dr. Pedro FreySep 1, 2025
What causes high suction pressure in CLIMAVENETA BRH 0121 FF Chiller?
- H
  hunterevanSep 1, 2025
  High suction pressure (greater than 20 bars) in your CLIMAVENETA Chiller could be due to a high utility water inlet temperature or a faulty or excessively open thermostatic expansion valve. In such cases, you should check these components.
S
susansmithSep 5, 2025
What causes low discharge pressure in CLIMAVENETA Chiller?
- D
  debbierodriguezSep 5, 2025
  Low discharge pressure (less than 16 bars) in a CLIMAVENETA Chiller can be caused by a low utility water inlet temperature, so you should check this.
K
Karen NewtonSep 9, 2025
What to do if there is moisture in the refrigerant circuit of CLIMAVENETA BRH 0121 FF?
- H
  honealSep 9, 2025
  If there is moisture in the refrigerant circuit of your CLIMAVENETA Chiller (indicated by a yellow flow indicator), you should empty and refill the system.

Summary

GENERAL WARNINGS

WAIVER OF LIABILITY

FUNDAMENTAL SAFETY RULES

RECEIVING AND HANDLING THE PRODUCT

GENERAL WARNINGS

DIMENSIONAL DRAWINGS

INSTALLATION

CHOICE OF INSTALLATION SITE

Guidance on selecting an appropriate installation site considering safety and access.

POSIZIONAMENTO

Instructions for positioning and securing the unit during installation.

WATER CONNECTIONS

TO MAKE THE CONNECTIONS

FILLING THE SYSTEM

Step-by-step guide for filling the water circuit of the unit.

EMPTYING THE SYSTEM

Instructions for safely emptying the water circuit of the unit.

WATER CIRCUIT DATA

Ethylene glycol solutions

Data on performance adjustments for ethylene glycol solutions and freezing points.

Fouling factors

Coefficients for adjusting performance based on fouling factors for evaporators.

SOUND PRESSURE

ELECTRICAL CONNECTIONS

Electrical data

Bringing electrical power cables into the unit and external connections

ELECTRICAL PANEL BRH FF

SINGLE-PHASE

Wiring diagram and details for the single-phase electrical panel.

THREE-PHASE WIRING

THREE-PHASE 0021 - 0061

Wiring diagram for three-phase models 0021 to 0061.

THREE-PHASE 0071 - 0121

Wiring diagram for three-phase models 0071 to 0121.

To complete the electrical connections

MAINS POWER SUPPLY CONNECTIONS

Guide for connecting the main power supply to the unit, specifying phases and earth.

AUXILIARY CONNECTIONS

How to use the installer terminal block for various auxiliary connections.

REMOTE ON;OFF

Connecting external contacts or timers for remote unit on/off control.

REMOTE ALARM

Connecting devices for remote alarm signaling, such as audible or visual alarms.

REMOTE KEYPAD KIT

Instructions for installing the remote keypad for unit control and parameter access.

FLOW SWITCH CONNECTIONS

Details on connecting flow switches for system and source protection.

DIGITAL INPUT FOR ECONOMY FUNCTION

Procedure to connect external contactors for the ECONOMY function.

SINGLE-PHASE WIRING DIAGRAM

THREE-PHASE WIRING

GENERAL TECHNICAL DATA

OPERATING LIMITS

DT SYSTEM SIDE, MINIMUM 3°C MAXIMUM 8°C

Specifies the minimum and maximum temperature difference for the system side.

DT WELL SIDE IN CHILLER OPERATION, MINIMUM 3°C MAXIMUM 21°C

Specifies the minimum and maximum temperature difference for the well side during operation.

CHECKING AND STARTING UP THE UNIT

PREPARING FOR FIRST START UP

Steps to prepare the unit for its initial start-up or after long shutdowns.

STARTING UP FOR THE FIRST TIME (after 2 hours)

Procedure for the initial start-up of the unit, including pre-heating the oil.

ACTIVATING AND DEACTIVATING THE UNIT

How to activate and deactivate the unit, including checks for error codes.

HSW12 FUNCTIONS

DESCRIPTION OF THE BUTTONS AND ASSOCIATED FUNCTIONS

Explains the function of each button on the HSW12 controller.

DESCRIPTION OF THE BUTTONS - COMBINED ACTION

Details the combined actions of buttons on the HSW12 controller.

LEDS AND DISPLAY

STATUS AND OPERATING MODE LEDS

Explains the meaning of status and operating mode LEDs on the controller.

VALUE AND UNIT OF MEASURE LEDS

Describes the LEDs indicating values and units of measure on the controller.

UTILITY LEDS

Explains the meaning of utility LEDs indicating compressor, pumps, and valves status.

SELECTING THE OPERATING MODE

Standby mode (StbY)

Details of the Standby operating mode.

Cooling mode (COOL)

Details of the Cooling operating mode.

SETTING THE SET POINTS

SETTING THE PARAMETERS

DISPLAYING AND RESETTING COMPRESSOR;PUMP HOURS

LIST OF ACCESSIBLE PARAMETERS

Configuration (CF)

Parameters related to unit configuration.

Temperature control (tr)

Parameters for managing temperature control functions.

Alarms (AL)

Parameters related to alarm management and settings.

DISPLAYING ALARMS

Er01 - High pressure switch tripped

Fault indicating a high pressure switch trip and its resolution.

Er05 - Low pressure switch tripped

Fault indicating a low pressure switch trip and its resolution.

Er20 - Differential pressure or flow switch tripped

Fault for tripped differential or flow switches and troubleshooting steps.

Er 25 - Well water flow switch tripped

Fault for well water flow switch trip and troubleshooting steps.

Er30 - System frost prevention alarm

Alarm for system frost prevention and reset procedure.

OPERATING CHARACTERISTICS

Cooling set point

Details on cooling set point, hysteresis, and compressor start/stop conditions.

Compressor start up delay

Explanation of features that prevent short cycling of the compressor.

Circulating pump

How the circulating pump operates and interacts with flow alarms.

Frost protection alarm

Description of the frost protection function and its reset requirements.

Water flow alarm

Explanation of the water flow alarm system and its behavior.

SHUTTING DOWN FOR LONG PERIODS

ROUTINE MAINTENANCE

Routine Maintenance Checks

Key checks for routine maintenance including water circuit, safety devices, and power supply.

SPECIAL MAINTENANCE

Chemical Washing

Procedure for chemical flushing of the heat exchanger.

Refrigerant Gas Content and Handling

Guidelines for checking, repairing leaks, and recharging R410A refrigerant.

TROUBLESHOOTING

Chiller does not start

Troubleshooting steps for when the chiller fails to initiate operation.

Insufficient cooling capacity

Diagnosing and resolving issues related to reduced cooling performance.

Compressor noise issues

Identifying causes and solutions for unusual compressor noise.

Noise and vibration problems

Addressing general noise and vibration concerns in the unit.

Protection devices tripping compressor

Troubleshooting when protection devices shut down the compressor.

USEFUL INFORMATION

Climaveneta Contact Information

Contact details for technical assistance and spare parts from Climaveneta.