HVAC Heat Pump Refrigerant Charging Equipment Customizable Program for Chiller Units R410A R32

Heat pumps and chiller units often need more than a single fixed charge. This equipment lets engineers build their own charging program with several stages, different quantities per stage and hold times between them, so the same machine can follow the charging procedure of each unit model instead of forcing the procedure to match the machine.

It is a single-station, recipe-driven charger for heat pump water heaters, monoblock units, chillers, air handling units and condensing units. The charging range reaches 30 kg on a 60 kg scale, liquid, vapour and combined charging are supported, and the program can hold up to eight stages. Separate parameters can be stored for cooling mode and heating mode charging — the point most fixed chargers cannot handle when a heat pump is commissioned in either mode.

Each stage has its own target and its own limits, and the values below are monitored during the stage rather than only at the end of the cycle:

The heart of the machine is a program sequencer that runs up to eight stages, each with its own quantity, hold time and charging mode. A heat pump with a long liquid line can be charged in two or three steps with settling intervals between them, which keeps the charge consistent on units that would otherwise be overcharged if the full quantity were injected at once.

Heat pumps are commissioned in both modes and the required charge differs between them. Instead of one fixed value, the controller stores a parameter set for cooling mode and one for heating mode, so the technician selects the mode and the correct target follows. This is what makes the station usable for a heat pump OEM that tests both modes on the same bench.

Some unit designs require liquid charging through the liquid line, others require vapour charging through the suction side at a controlled rate. The station supports both, and the charging path is chosen per stage in the recipe, along with the flow restriction that keeps the compressor safe during vapour charging.

Programs are stored in the controller and can be exported to a USB stick, so one approved recipe can be copied to every station in a plant or to a service team in the field. Multi-site standardisation then becomes a file copy instead of a retyping exercise, and a recipe revision can be traced to the date it was introduced.

• Free programmable charging sequence with up to eight stages
• Separate parameters for cooling mode and heating mode charging
• Supports R410A, R32, R134a, R290 and R404A refrigerant libraries
• Liquid and vapour charging modes for different unit designs
• Real-time pressure, weight and vacuum feedback during each stage
• Recipe backup and restore through USB for multi-site standardisation
• 60 kg scale with 1 g resolution for large heat pump and chiller charges
• Trim fill at the end of each stage to avoid overshoot on the final weight
• Vacuum limit interlock so charging cannot start before evacuation is complete

The equipment is built for units in the 50 g to 30 kg charge range, which is where most heat pump and chiller production sits:

• Heat pump water heater and monoblock production
• Chiller and air handling unit commissioning
• Commercial HVAC project installation
• OEM production lines with model-specific charge recipes
• Split and multi-split systems with long liquid lines that need staged charging
• Service companies that commission heat pumps in both heating and cooling mode on site
• R32 monoblock lines where the charge must be recorded for the unit safety file

Large charge stations are usually installed as part of a production line, so support is organised around keeping that line running.

Long liquid lines and large internal volumes mean the liquid needs time to settle and distribute. Injecting the full quantity at once gives a false weight reading and an inconsistent charge, so the same model ends up charged differently unit to unit. Staged charging with hold times removes that variation.

Yes. The controller keeps a parameter set for cooling mode and one for heating mode, and the technician selects the mode before the cycle. For a heat pump OEM that tests both modes, this avoids maintaining two separate stations.

Yes, up to eight stages per program and several programs stored in the controller. Changeover is a recipe selection, not a mechanical change, provided the charge stays inside the 30 kg range and the hose and coupler set suits the refrigerant.

The recipe library is exported to a USB stick and imported into the other stations, so a new or revised program is distributed as a file. The version in use is visible in the controller, which is useful when a charge-related claim has to be traced.

220 V 50/60 Hz is the standard for a single station. For higher charging rates or when the line supply is three phase, the 380 V three phase version is normally chosen. Please state the workshop supply and the plug standard when enquiring.

Standard builds are normally shipped within four to six weeks after drawing and recipe approval, and project stations with special hose lengths or interfaces are confirmed at order stage. Fumigation-free plywood packing is used for all exports.

Every unit is delivered with an English manual and a written commissioning checklist. Operator training by video call is included, and an engineer visit for training and recipe building can be added to the order.

Guangzhou HongCe Equipment Co., Ltd. has been designing and building test and production equipment in Guangzhou, China since 2003. Roughly half of our annual output is exported, and the machines are used by third-party laboratories, appliance and HVAC factories, and inspection bodies that work to IEC, UL, GB and EN standards. Our slogan states the position we have kept for more than twenty years: industry-leading test equipment, advanced online systems and solutions, anywhere in the world.

The company is ISO 9001:2015 certified, and machines supplied to the EU market carry CE marking. Mechanical fabrication, control cabinet assembly, PLC and HMI programming, refrigerant circuit assembly and final calibration are all done in our own workshop, so a station can be engineered around a customer's production sequence instead of being adapted from a catalogue item. Our engineers keep the refrigerant, pressure and vacuum know-how in-house, which is why questions about charging recipes, leak limits or flammable refrigerant handling are answered by the people who built the machine.

Heat pump and chiller projects are usually quoted with the charging program already drafted for the customer's first unit models, so the equipment arrives able to run production the day it is installed.

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