This document is a technical manual for the PacFIRST Heat Pump, designed for heating outdoor swimming pools. The manual covers installation, operation, maintenance, and warranty information for various models, including mono and tri-phase units with different power outputs.
Function Description
The PacFIRST Heat Pump is an air-to-water heat pump system specifically engineered for heating outdoor swimming pools. It utilizes advanced technical breakthroughs to provide an effective solution for pool climate control, thereby extending the annual swimming season. The core function of the heat pump is to transfer heat from the ambient air to the pool water, efficiently raising the water temperature to a desired level.
The heat pump's operation is managed by a specialized NA6888 controller. This controller features:
- Temperature Display and Control: It can display both the water tank temperature and the outdoor temperature. It controls the water temperature within set maximum and minimum limits.
- Automatic Defrost Control: The controller incorporates an optimized defrosting logic to ensure efficient defrosting, allowing the outdoor unit to operate normally even at low temperatures. Defrosting can be configured in several modes: via a four-way valve, a bypass valve, or electric heat.
- External Alarm: An input for an external alarm signal is provided, which can be configured in five different modes (always open, always open locked, always closed, always closed locked, or forbidden). When an external alarm occurs, the controller stops the unit, displays an "A11" alarm code, and generates an alarm output.
- Compressor Delay Protection: The controller includes a compressor halt calculagraph to prevent frequent compressor starts, ensuring a minimum of 3 minutes between stops. It also delays compressor startup by 3 minutes after power-on to protect against power outages.
- Water Pump Control: The heat pump can control the water pump, activating it every 60 minutes for 5 minutes to check the water temperature. This feature can be modified via parameters F43 and F44.
Important Technical Specifications
The manual provides a table of technical characteristics for various PacFIRST models (PacFIRST 4.5 MONO to PacFIRST 21 TRI). Key specifications include:
- Power Output: Ranges from 14000 BTU/H (4200 W) for the PacFIRST 4.5 MONO to 72000 BTU/H (21000 W) for the PacFIRST 21 models.
- Power Input: Ranges from 850 W to 4500 W depending on the model.
- Efficiency (COP): Consistently around 5.0 to 4.7 across all models.
- Nominal Current: Ranges from 3.8 A to 21 A.
- Voltage / Frequency: Available in 230V/1/50Hz (mono-phase) and 380V/3/50Hz (tri-phase) configurations.
- Compressor Type: ROTARY for smaller models, SCROLL for larger models.
- Heat Exchanger: TITANIUM.
- Refrigerant: R410A, with quantities ranging from 0.70 kg to 2.75 kg.
- Fan Power Input: Ranges from 1x20 W to 1x200 W.
- Fan Rotate Speed: 850 RPM for all models.
- Noise Level: Ranges from ≤47 dB to ≤58 dB.
- Water Connection: 50 mm for all models.
- Water Flow: Ranges from ≥4.0 m³/h to ≥9.0 m³/h.
- Water Pressure Loss: 10 kPa to 12 kPa.
- Net Dimensions (L x W x H): Vary by model, e.g., 72x35x50 cm for PacFIRST 4.5 MONO to 110x48x95 cm for PacFIRST 21 models.
- Net Weight: Ranges from 38 kg to 110 kg.
Operational Temperature Limits:
- Minimum outdoor air temperature: 0°C
- Maximum pool water temperature: 36°C
- Maximum inlet water pressure: 3.5 bar.
Usage Features
The manual emphasizes several key usage features and precautions:
- Installation: Must be performed by qualified technical personnel, adhering to manufacturer instructions and local regulations. The unit requires a rigid base, outdoor installation away from direct sunlight and heat sources, and specific clearance (1m front, 0.5m back/sides). Minimum distance from the pool edge is 3.5 meters. Electrical and hydraulic connections must comply with regulations (NF C 15 100, C1364) and be fixed.
- Hydraulic Connections: Made via a by-pass on the pool's filtration circuit, after the filter and before water treatment. The unit comes with D-50 PVC unions, 50-40x1 1/2” PVC adaptor nipples, and NPT 1 1/2”-38 hose couplings for flexible installation.
- Electrical Connections: Preferably from an exclusive circuit with a 30 mA differential protection and a magnetic circuit breaker. Cables must be correctly installed to prevent interference and the unit must be earthed. Voltage fluctuation tolerance is +/- 10%.
- Start-up Procedure: Requires the outdoor temperature to be above 0°C. The filtration pump must be running before the heat pump starts. The desired temperature is set via the NA6888 controller. The installer must adjust by-pass valves according to machine pressures and avoid further intervention during the initial warming period.
- Important Operation Note: The heat pump must always operate with the purification pump. Timers or programmers that could stop the purification pump while the heat pump is running alone should not be interconnected. It is normal for the machine to take 2-3 days to reach the desired temperature initially.
- Hibernation Procedure: Involves switching off the filtering pump, closing specific by-pass valves, opening others, and draining the exchanger to prevent ice damage. Connectors should be reassembled and checked to prevent foreign bodies from entering the exchanger.
Maintenance Features
Regular maintenance is crucial for the correct and lasting operation of the PacFIRST Heat Pump. This must be carried out by a professionally qualified person at least once a year and includes:
- Cleaning: Cleaning the rear evaporator with a soft brush and non-chlorinated water spray.
- Inspection: Revision of the unit's operating instructions, safety mechanisms, and control settings.
- Electrical System: Dusting the circuit board and checking earth connections.
- Refrigerant System: Checking gas pressure.
- R410A Gas Handling: Specific instructions are provided for R410A, which is a compound mixture and requires specialized polyol ester (POE) oil. No other oil types should be added. Instruments for charging, pressure measurement, vacuum creation, and liquid recovery must be compatible with R410A. Charging must be done in the liquid phase. In case of leaks, the remaining liquid must be recovered for recycling, and a full new charge must be performed. When opening the refrigeration circuit, minimize ambient air entry, replace the dehydrator, and create a vacuum to a minimum level of 0.3 mbar (static).
Product Recycling
At the end of its service life, the heat pump, containing liquid refrigerant gas and electrical components, must be dismantled by an authorized company or transported to designated local recycling facilities. The product is designed with high-quality, environmentally friendly, reusable, and recyclable materials, but certain parts are not biodegradable and should not be discarded in the environment. The manual references European directives (2006/42/EC, 2004/108/EC, 2006/95/EC, 2000/14/CE, 2002/95/CE RoHS, 2002/96/CE RAEE) and Spanish Royal Decrees for proper waste management.
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