Dantherm CDP50 Wall Mounted Dehumidifier – 52L/Day Professional Pool Moisture Control 💧
Superior Pool Environment Humidity Control for Demanding Applications
The Dantherm CDP50 represents professional-grade dehumidification technology specifically engineered for indoor swimming pool environments. Delivering 52 litres per day (2.1L/hour) moisture extraction capacity, this wall-mounted unit combines Danish engineering excellence with energy-efficient operation and whisper-quiet performance.
Whether you’re managing a commercial leisure facility, hotel spa, fitness center pool, or high-end residential indoor pool, the CDP50 provides reliable, continuous moisture control that protects your building fabric, ensures swimmer comfort, and delivers exceptional energy efficiency.
Key Features & Benefits
🌊 High-Capacity Moisture Removal
52 Litres Per Day Dehumidification The CDP50 extracts moisture at a rate of 2.1 litres per hour, making it ideal for medium to large indoor pool rooms. Based on test conditions of 30°C air temperature and 60% relative humidity, the unit delivers consistent, reliable performance day after day.
680 m³/Hour Air Flow Powerful yet quiet fans circulate 680 cubic metres of air per hour through the unit, ensuring thorough dehumidification across the entire pool space without creating uncomfortable drafts.
🔇 Whisper-Quiet Operation
47 dB(A) Wall Mounted / 44 dB(A) Through-Wall Measured at just 1 metre distance, the CDP50 operates quieter than a typical conversation. Through-wall installation further reduces noise to just 44 dB(A), making it perfect for hotel spas, therapy pools, and residential settings where ambiance matters.
⚡ Energy-Efficient Performance
1.5 kW Maximum Power Consumption With a specific energy consumption (SEC) of just 0.48 kWh per litre of water removed, the CDP50 delivers professional performance without excessive energy costs. The intelligent control system only runs when needed, further reducing electricity consumption.
Smart Defrost Technology The unit continuously monitors evaporator temperature and automatically initiates defrost cycles only when necessary, maintaining optimal efficiency and preventing ice buildup that could reduce performance.
💪 Built for Pool Environments
Corrosion-Protected Construction Pool chemical resistance is critical for dehumidifier longevity. The CDP50 features:
- Epoxy-coated evaporator and condenser coils – Protection against chlorine and other pool chemicals
- Powder-coated metal parts – Applied before assembly for complete corrosion protection
- IPX4 protection class – Splash-proof construction suitable for humid environments
🎛️ Intelligent Control System
Programmable Humidity Control Set your desired relative humidity level between 40-99% RH. The integrated hygrometer continuously monitors conditions and automatically starts/stops dehumidification to maintain your setpoint (±2% hysteresis).
Built-in Control Panel Features:
- 4-digit LED display showing current RH%
- Programmable humidity setpoint
- Service interval timer
- Comprehensive error diagnostics
- USB port for data logging and software updates
- Modbus RTU (RS-485) for Building Management System integration
Optional Accessories:
- Wireless remote control (DRC1) for convenient operation
- External RH/T sensor for optimal placement flexibility
- Integration with heating systems (LPHW or electric coil options available)
Complete Technical Specifications
Performance Data (CDP50)
| Specification | Value | Notes |
|---|---|---|
| Dehumidification Capacity | 52 litres/day | 2.1 L/hour |
| Test Conditions | 30°C / 60% RH | Pool water 28°C |
| Air Flow Rate | 680 m³/hour | Free air movement |
| Specific Energy Consumption (SEC) | 0.48 kWh/L | At 28°C, 60% RH |
| Heat Output to Air | 2.53 kW | From dehumidification process |
| Return Air Temperature Rise | Approx. 5°C | Warmer than intake air |
Electrical Specifications
| Specification | Value | Notes |
|---|---|---|
| Power Supply | 230V / 1-phase / 50Hz | Standard UK supply |
| Maximum Power Consumption | 1.5 kW | Peak load |
| Maximum Current Draw | 6.6 Amps | Nominal running current |
| Recommended Fuse Rating | 13 Amp | Motor-rated fuse required |
| Protection Class | IPX4 | Splash-proof |
Operating Parameters
| Parameter | Range | Optimal |
|---|---|---|
| Operating Temperature | 10-36°C | 28-32°C |
| Operating Humidity | 40-100% RH | 50-70% RH |
| Humidity Setpoint Range | 40-99% RH | Adjustable in 1% increments |
Refrigeration System
| Component | Specification |
|---|---|
| Refrigerant Type | R407C (ozone-friendly) |
| Refrigerant Charge | 0.9 kg |
| Global Warming Potential (GWP) | 1774 |
| Compressor Type | Hermetically sealed |
| Defrost Method | Automatic hot-gas defrost |
Dimensions & Weight
Wall Mounted Configuration
| Dimension | Measurement |
|---|---|
| Width | 1160 mm |
| Height | 770 mm |
| Depth | 326 mm |
| Weight | 66 kg |
Through-Wall Configuration (CDP50T)
| Dimension | Measurement |
|---|---|
| Width | 1148 mm |
| Height | 700 mm |
| Depth | 304 mm |
| Weight | 66 kg |
Installation Requirements
| Requirement | Specification |
|---|---|
| Minimum Clearance to Ceiling | 225 mm |
| Minimum Clearance to Floor | 225 mm |
| Condensate Drain Connection | 3/4″ BSP |
| Drainage Slope Required | Minimum 2% gradient |
| Wall Mounting Hardware | Included (suspension bar + spacers) |
| Cable Entry Provisions | 2 cable grooves for accessories |
Room Coverage Guide 🏊
Recommended Pool Room Sizes
The CDP50 is suitable for indoor pool rooms with the following characteristics:
| Pool Surface Area | Room Volume | Typical Applications |
|---|---|---|
| 25-45 m² | 200-360 m³ | Medium residential pools, small hotel pools |
| Up to 50 m² | Up to 400 m³ | Fitness center pools, therapy pools |
Important Factors Affecting Coverage:
- Pool water temperature (higher = more moisture)
- Frequency of pool use (more swimmers = more evaporation)
- Room ventilation rate
- Pool covering when not in use (significantly reduces moisture load)
- Ambient air temperature
💡 Pro Tip: For pools with heavy use, higher water temperatures (>30°C), or no pool cover, consider the CDP70 (69L/day) for optimal performance.
Why Choose the Dantherm CDP50?
✅ Professional-Grade Capacity – Removes up to 52 litres of moisture daily
✅ Quiet Operation – Just 47 dB(A) at 1 metre (wall mounted) / 44 dB(A) (through-wall)
✅ Energy Efficient – Advanced compressor and fan technology minimizes running costs
✅ Space-Saving Design – Wall-mounted configuration maximizes floor space
✅ Corrosion Protection – Epoxy-coated coils and powder-coated metal parts for pool chemical resistance
✅ Intelligent Control – Programmable humidity setpoints with automatic defrost
✅ Quick Installation – Complete mounting hardware and comprehensive documentation included
Moisture Extraction Performance ⏱️
Estimated Dehumidification Times
Based on the CDP50’s 2.1 L/hour extraction rate under standard conditions (30°C, 60% RH):
| Excess Moisture to Remove | Estimated Time to Target RH |
|---|---|
| 10 litres | 4.8 hours |
| 20 litres | 9.5 hours |
| 30 litres | 14 hours |
| 50 litres | 24 hours |
⚠️ Important Disclaimers:
- Times are estimates based on optimal conditions (30°C air, 60% RH, 28°C pool water)
- Actual performance varies with room temperature, initial humidity level, pool temperature, air circulation, and building insulation
- Lower temperatures reduce dehumidification capacity
- Continuous moisture sources (uncovered pools, swimmers) extend dehumidification time
- These figures represent the unit running continuously at full capacity
Real-World Performance Factors
Temperature Impact: The CDP50 operates most efficiently between 28-32°C. Performance decreases at lower temperatures:
- At 30°C: Full rated capacity (2.1 L/hour)
- At 20°C: Approximately 60-70% of rated capacity
- At 15°C: Approximately 40-50% of rated capacity
- Below 10°C: Operation not recommended
Humidity Impact: Higher initial humidity levels mean more moisture to remove but also better operating conditions for the compressor. The unit is most efficient at 60-80% RH.
Energy & Running Cost Analysis 💰
Electrical Consumption
Maximum Power Draw: 1.5 kW Typical Operating Power: 1.2-1.5 kW (varies with load)
Estimated Monthly Running Costs
Based on UK average electricity rates (£0.34 per kWh as of 2024):
| Operating Scenario | Hours/Day | Days/Month | kWh Used | Estimated Monthly Cost |
|---|---|---|---|---|
| Light Use (Pool covered when not in use) | 4 hours | 30 days | 180 kWh | £61.20 |
| Moderate Use (Daily pool use, evening cover) | 8 hours | 30 days | 360 kWh | £122.40 |
| Heavy Use (Commercial, uncovered pool) | 16 hours | 30 days | 720 kWh | £244.80 |
| Continuous Operation (24/7 hotels/spas) | 24 hours | 30 days | 1,080 kWh | £367.20 |
💡 Energy Saving Tips:
- Use a pool cover when the pool is not in use (can reduce evaporation by 90%)
- Maintain pool water temperature below 30°C where comfortable
- Keep doors and windows closed in the pool room
- Regular filter cleaning maintains airflow efficiency
- Use the programmable humidity setpoint to avoid over-dehumidification
Comparison with Alternative Humidity Control
CDP50 vs. Ventilation-Only Systems: Traditional ventilation systems bring in cold outside air and heat it, requiring significantly more energy in UK climate. The CDP50 recirculates and warms the same air through the heat pump cycle, recovering energy that would otherwise be lost.
Estimated Heating Cost Savings: 40-60% compared to air-change ventilation systems
📄 Downloads & Documentation
Access complete technical documentation for installation, operation, and maintenance:
📥 Dantherm CDP Service Manual (opens in new tab) Complete service manual covering CDP 40-50-70 series including installation procedures, wiring diagrams, troubleshooting guides, maintenance schedules, spare parts identification, and technical schematics. Essential for installers and service technicians.
📥 CDP Dehumidifier Product Brochure (opens in new tab) Full product range overview with specifications, dimensions, performance data, and optional accessories for wall-mounted and through-wall configurations. Includes LPHW and electric heating variants.
How It Works: The Condensation Principle 🔄
The Dantherm CDP50 uses proven refrigeration technology to remove moisture efficiently:
The Dehumidification Cycle
1. Air Intake Humid air from the pool room is drawn into the unit by two internal fans operating at 680 m³/hour combined flow rate.
2. Cooling & Condensation Air passes through the evaporator coil where it’s cooled below its dew point temperature. Water vapor condenses into liquid water, which drains away through the 3/4″ condensate outlet.
3. Reheating The now-dry air passes through the condenser coil where it’s reheated using:
- Latent heat recovered from the condensation process
- Compressor energy (turned into heat)
4. Return to Room Dry, warm air (approximately 5°C warmer than intake air) is returned to the pool room, continuing the dehumidification cycle while providing supplemental heating.
Automatic Defrost System
The CDP50 features intelligent defrost technology:
- Evaporator temperature is continuously monitored
- When ice formation is detected, the unit automatically switches to defrost mode
- Fans stop and a solenoid valve opens, directing hot refrigerant gas through the evaporator
- Once defrost is complete, normal dehumidification resumes
- This process is invisible to the user and requires no intervention
Safety & Protection Features
Compressor Protection:
- Maximum 10 starts per hour (minimum 6 minutes between starts)
- Automatic shutdown if internal temperature exceeds 55°C
- Restart delay after power interruption
- Low-pressure and high-pressure protection circuits
User Safety:
- IPX4 splash-proof construction
- Safety cut-outs for all electrical circuits
- Thermal protection on fan motors
- Complies with EN 60335-1:2012 and EN 60335-2-40:2003
Installation Overview 🔧
Wall Mounting Requirements
Clearances Required:
- Minimum 225mm to ceiling
- Minimum 225mm to floor
- Free air circulation around air inlet and outlet grilles
Wall Strength: The unit weighs 66kg when installed. Ensure wall construction can support this weight plus mounting hardware. Masonry walls or stud walls with appropriate reinforcement are required.
What’s Included:
- Wall suspension bar (must be mounted horizontally)
- 2× wall mounting spacers
- Installation hardware
- Condensate drain spigot (3/4″ BSP)
Drainage Requirements
Condensate Management: Connect a 3/4″ flexible or rigid drainage hose to the outlet spigot at the base of the unit.
Critical Requirements:
- Minimum 2% gradient (2cm drop per meter of run)
- Terminate to foul drain, soakaway, or external discharge point
- No traps or u-bends that could create back-pressure
- Consider a condensate pump if gravity drainage isn’t possible
Electrical Connection
Installation Must Be Performed by Qualified Electrician:
- 230V single-phase supply required
- 13 Amp motor-rated fuse minimum
- 2.5mm² cable minimum gauge
- Connection via PG cable restrainer
- Compliant with BS 7671 wiring regulations
⚠️ Important: Allow unit to stand upright for at least 1 hour after transport before powering on (allows compressor oil to settle).
Through-Wall Installation (CDP50T Model)
If specifying the CDP50T through-wall variant:
- Wall aperture required: 760mm wide × 395mm high
- Wall duct kit must be specified separately
- Provides quieter operation (44 dB(A) vs 47 dB(A))
- Air inlet/outlet grilles included
- Sealing frame prevents condensation in wall cavity
Maintenance & Care 🛠️
Monthly Maintenance (5 minutes)
Air Filter Cleaning:
- Unlock two clips beneath the unit
- Remove front cover by lifting upward
- Remove filter from rear of front cover
- Wash in warm soapy water or vacuum clean
- Allow to dry completely before reinstalling
- Reattach cover and secure locks
Drip Tray Inspection: Check condensate drip tray and outlet for debris or blockages. Clean if necessary to ensure free water drainage.
💡 The CDP50 uses a single-size PPI 15 filter (Dantherm order no. 094686) available from authorized dealers.
Annual Service (Professional)
Recommended Annual Inspection Includes:
- Vacuum cleaning of internal components
- Thorough condenser coil cleaning (critical for efficiency)
- Evaporator inspection and cleaning if heavily soiled
- Electrical connection inspection
- Refrigerant pressure check
- Compressor operation assessment
- Control system function test
- Sensor calibration check
Service Interval Timer: The control panel includes a programmable service interval reminder (adjustable 1-99 weeks). The display shows “SEr” when service is due.
Filter Replacement
The air filter should be replaced (not cleaned) if:
- Damaged or torn
- Heavily soiled and cannot be cleaned
- Showing signs of degradation
- Annual replacement recommended for optimal efficiency
Pool Water Chemistry Requirements ⚗️
Critical for Warranty Validation
The CDP50 is built to withstand typical pool chemical environments, but extreme water chemistry can damage any dehumidifier. For warranty protection, maintain pool water within these parameters:
For Chemically-Treated Pools
| Parameter | Acceptable Range | Unit |
|---|---|---|
| Free Chlorine | 1.0 – 2.0 | ppm |
| Combined Chlorine | Max 1/3 of free chlorine | ppm |
| pH Level | 7.2 – 7.6 | pH |
| Total Alkalinity | 80 – 150 | ppm |
| Calcium Hardness | 250 – 450 | ppm |
| Total Dissolved Solids | < 2,000 | ppm |
| Sulphates | < 360 | ppm |
For Salt Water Chlorination Systems
| Parameter | Acceptable Range | Unit |
|---|---|---|
| Salt (NaCl) | < 30,000 | ppm |
| Total Dissolved Solids | < 5,500 | ppm |
| pH Level | 7.2 – 7.6 | pH |
| Total Alkalinity | 80 – 150 | ppm |
| Calcium Hardness | 250 – 450 | ppm |
| Sulphates | < 360 | ppm |
💡 Use the Langelier Saturation Index to ensure balanced water chemistry. Contact Dantherm support if you need assistance calculating your pool’s LSI.
⚠️ Warning: Excessively chlorinated water or corrosive chemical atmospheres will damage equipment and void the warranty. Proper pool water balance protects your investment and ensures healthy swimming conditions.
Ideal Applications 🏊♀️
Residential Indoor Pools
- Private pool rooms in homes
- Garden room swimming pools
- Basement pool installations
- Pool houses and outbuildings
Commercial & Hospitality
- Hotel spas and wellness centers
- Fitness club and gym pools
- Therapy and rehabilitation pools
- Holiday park swimming pools
- Bed & breakfast pool rooms
Specialized Facilities
- Hydrotherapy pools in care homes
- School swimming pools
- Training pools
- Teaching pools
When to Choose the CDP50
Ideal For:
- Pool surface areas 25-45 m²
- Medium commercial pools
- Residential pools with regular use
- Facilities operating 8-16 hours daily
- Rooms with good insulation
- Pools using covers when not in use
Consider Upgrading to CDP70 If:
- Pool surface area >45 m²
- Heavy commercial use (>16 hours daily)
- Pool water temperature >30°C
- No pool cover used
- High swimmer density
- Poor building insulation
Consider CDP40 If:
- Pool surface area <25 m²
- Light residential use
- Lower budget requirement
- Limited electrical capacity
Smart Controls & Integration 🖥️
Standard Control Features
Front-Panel LED Display:
- Shows current relative humidity percentage
- Code/value display system for all parameters
- Programmable humidity setpoint (40-99% RH)
- Service interval countdown
- Comprehensive error code diagnostics
- LED status light indicates operating mode
Operating Modes:
- AUTO: Fan and compressor operate based on RH setpoint (most efficient)
- ON: Continuous operation regardless of humidity (testing/emergency)
- FAN: Fan always on, compressor operates on RH setpoint
Advanced Control Options
USB Connectivity:
- Data logging of temperature, humidity, operating hours
- Software updates via USB drive
- CSV export for analysis
- No PC connection required during logging
Modbus RTU (RS-485):
- Building Management System (BMS) integration
- Remote monitoring and control
- Programmable device ID (1-255)
- Full data access for facility management systems
Optional Wireless Remote Control (DRC1):
- Radio frequency control (not infrared – works through walls)
- Up to 30 meters range
- Battery powered
- Duplicate all front-panel functions
- LED pairing indicator
- Available as separate accessory
External RH/T Sensor (Optional):
- Position humidity sensor optimally in room
- Override internal sensors
- 0-10V humidity signal
- 10kΩ NTC temperature sensor
- Shielded cable routing provided
Optional Accessories & Upgrades
Heating Integration Options
LPHW (Low Pressure Hot Water) Air Heating Coil:
- Integrates with existing boiler systems
- 5.28 kW heating output (CDP50 LPHW variant)
- Total heat to air: 6.72 kW (dehumidifier + LPHW)
- 12mm boiler connections
- 7.2 L/min flow rate required
- ON/OFF control from CDP50 unit
- Recommended boiler output: 5.28 kW minimum
Electric Heating Coil:
- Standalone electric heating element
- 3.5 kW heating output (CDP50 Electric variant)
- Total heat to air: 4.53 kW (dehumidifier + electric)
- Temperature-controlled operation
- Requires 30A fuse (19.7A running current)
- Independent of boiler systems
Mounting & Installation Accessories
Floor Mounting Kit: For situations where wall mounting isn’t suitable
- Free-standing frame and support structure
- Maintains proper air circulation
- Allows portable positioning
- Includes wheels for mobility (optional)
Through-Wall Duct Kit (for CDP50T):
- Aluminum air inlet/outlet grilles
- Wall sealing frame and gaskets
- Filter integrated into inlet duct
- Extension pieces for thick walls
- Professional appearance both sides of wall
Duct Lead-In Adapter: For connecting CDP50 to ductwork
- Enables remote air intake/exhaust
- Allows flexible installation locations
- Compatible with standard HVAC ducting
Control Accessories
Wireless Remote Control (DRC1): As detailed in Smart Controls section above – provides convenient wireless operation from anywhere in the pool area.
External Humidity/Temperature Sensor: For optimal sensor placement away from the unit.
Troubleshooting & Diagnostics 🔍
The CDP50 features comprehensive self-diagnostics with LED and display indicators:
LED Status Indicators
| LED Color/Pattern | Status | Meaning |
|---|---|---|
| Blue – Constant | Normal | Power-up sequence |
| Blue – Slow Flash | Testing | Self-test in progress |
| Green – Constant | Operating | Heating coil active (if fitted) |
| Yellow – Constant | Attention | Service interval expired |
| Yellow/Red Flash | Warning | Ambient temperature out of range |
| Red – 2× Flash | Fault | Low pressure alarm |
| Red – 4× Flash | Fault | High pressure alarm |
| Red – 6× Flash | Fault | Sensor malfunction |
Common Display Error Codes
| Display Code | Issue | Action Required |
|---|---|---|
| Abrh | Humidity out of range | Will auto-clear when conditions normalize |
| ABt | Temperature out of range | Check room temperature (10-36°C range) |
| SEr | Service due | Perform maintenance, reset interval |
| SENS | Sensor fault | Press arrow keys to identify faulty sensor |
| LP | Low pressure | Check refrigerant, call service technician |
| HP | High pressure | Check condenser coil, air circulation |
| LPCo | Low pressure warning | Pre-fault condition, monitor closely |
DIY Troubleshooting
Unit Not Starting:
- Check mains power supply and fuse
- Verify ambient temperature is 10-36°C
- Confirm humidity is above setpoint
- Check display for error codes
Poor Dehumidification Performance:
- Clean or replace air filter
- Check for blocked condenser coils
- Verify condensate drainage is clear
- Ensure doors and windows are closed
- Check humidity setpoint is appropriate
Excessive Noise:
- Confirm unit is mounted horizontally
- Check mounting is secure
- Inspect for debris in fan area
- Verify proper clearances maintained
Water Leaking:
- Check condensate drain connection
- Verify drain slope (minimum 2%)
- Inspect drip tray for damage
- Check drain line for blockages
⚠️ When to Call a Professional:
- Any refrigerant-related issues (LP, HP codes)
- Electrical faults
- Compressor problems
- Sensor malfunctions
- Annual service requirements
Warranty & Support 🛡️
Manufacturer’s Warranty
Two-Year Comprehensive Coverage:
- Year 1: Parts and labor fully covered
- Year 2: Parts only (labor charged separately)
Warranty Valid When:
- Installation performed by qualified technician
- Pool water chemistry maintained within specifications
- Regular maintenance schedule followed
- Unit operated within environmental limits (10-36°C)
- Unit not damaged by external factors
Warranty Does Not Cover:
- Damage from improper water chemistry
- Lack of maintenance (filter cleaning, annual service)
- Unauthorized modifications
- Damage from freezing
- Normal wear items (filters, etc.)
Technical Support
Dantherm A/S Support:
- Visit: support.dantherm.com
- Comprehensive technical documentation
- Software updates and firmware
- Spare parts identification
- Service bulletins
UK Distribution: Contact your Certikin stockist for:
- Product availability and pricing
- Spare parts ordering
- Warranty claims
- Technical assistance
- Installation support
Frequently Asked Questions ❓
General Operation
Q: How do I know what humidity level to set? A: For indoor swimming pools, 50-60% RH is ideal. This prevents condensation on windows and surfaces while remaining comfortable for swimmers. In winter, you may want to reduce to 50% RH; in summer, 60% RH is acceptable. Never exceed 65% RH as this promotes mold growth.
Q: Should the dehumidifier run continuously or cycle on/off? A: In AUTO mode (recommended), the unit cycles based on your humidity setpoint. This is most energy-efficient. Continuous operation (ON mode) is only necessary in extreme conditions or during initial pool room dry-down. Typical operation is 8-16 hours daily depending on pool use.
Q: How long does it take to dehumidify a newly filled pool room? A: Initial dry-down of a new or heavily saturated pool room can take 2-5 days of continuous operation. Once the structure (walls, ceiling, floor) has dried and humidity stabilizes, the unit will cycle normally. Be patient during initial commissioning.
Q: Why does the unit sometimes run even when humidity seems low? A: The CDP50 checks humidity conditions once per hour (in AUTO mode). If humidity has risen above setpoint, it will run a dehumidification cycle. Cold spots in the room or moisture trapped in building materials may also cause localized high humidity.
Performance & Efficiency
Q: Will the CDP50 heat my pool room? A: The dehumidification process produces approximately 2.53 kW of heat, warming return air by about 5°C above intake temperature. This provides supplemental heating but is not typically sufficient as the sole heat source. For full climate control, consider the CDP50 LPHW or electric heating variants.
Q: What’s the running cost compared to my old dehumidifier? A: The CDP50’s specific energy consumption of 0.48 kWh/L is among the best in its class. Compared to older dehumidifiers (often 0.6-0.8 kWh/L), you can expect 30-40% lower energy consumption for the same moisture removal.
Q: Does it work in cold conditions? A: The unit operates from 10-36°C. Performance decreases at lower temperatures, with optimal efficiency at 28-32°C. Below 10°C, automatic defrost cycles become frequent and efficiency drops significantly. The unit is not designed for outdoor or unheated space use.
Q: How much condensate water will it produce? A: Up to 52 litres per day at rated capacity (30°C, 60% RH). Actual daily production varies widely – typically 20-40 litres in normal residential use, up to the full 52 litres in high-use commercial settings with uncovered pools.
Installation & Setup
Q: Can I install this myself? A: Mechanical installation (wall mounting, drainage) can be DIY for competent DIY enthusiasts. However, electrical connection must be performed by a qualified electrician according to BS 7671. Warranty may be affected by improper installation.
Q: What if I can’t achieve a 2% drainage slope? A: Install a condensate pump (separate product) at the drain outlet. These are inexpensive (~£50-100) and can pump condensate several meters vertically and horizontally. Essential for basement installations.
Q: Can I mount it outdoors under a canopy? A: No. The CDP50 is rated IPX4 (splash-proof) but is designed for indoor use only. Outdoor conditions, temperature extremes, and direct weather exposure will damage the unit and void the warranty.
Q: Do I need the through-wall model (CDP50T)? A: Through-wall installation (CDP50T) is quieter (44 vs 47 dB(A)) and visually cleaner, but requires wall penetration and duct work. Standard wall mounting (CDP50) is simpler and suitable for most applications. Choose based on room layout and aesthetic preferences.
Maintenance & Reliability
Q: How often should I clean the filter? A: Monthly minimum, or more frequently if the pool room is dusty or heavily used. A clogged filter reduces airflow, decreases efficiency, and can cause the unit to overheat. The display will remind you when service is due (programmable interval).
Q: What is the expected lifespan? A: With proper maintenance and correct water chemistry, 10-15 years is typical. The compressor is the primary wear component and should last 15,000-20,000 operating hours (7-10 years of continuous use). Annual professional service extends lifespan significantly.
Q: Can I get spare parts years from now? A: Dantherm supports their products long-term. The service manual includes complete parts diagrams and part numbers. Major components like compressors, control boards, and fans should be available for the unit’s economic lifespan.
Q: What happens if I forget to clean the filter? A: Airflow will progressively decrease, reducing dehumidification capacity and increasing energy consumption. Eventually, the unit may display high-pressure warnings (HP code) or the fan motor’s thermal protection may trip, shutting down the unit. Always maintain clean filters.
Pool Chemistry & Environment
Q: My pool uses bromine instead of chlorine. Is that okay? A: Bromine is generally less corrosive than chlorine. As long as bromine levels and pH remain in appropriate ranges (similar to chlorine guidelines), the CDP50 should perform well. Monitor equipment regularly and maintain proper water balance.
Q: What if my pool is saltwater with a generator? A: Salt water pools are compatible but require stricter TDS monitoring (max 5,500 ppm TDS vs 2,000 ppm for non-salt pools). The epoxy-coated coils provide excellent salt air resistance. Follow the salt water chemistry parameters in the specifications section above.
Q: Do I need to close off the pool room from my house? A: Yes, absolutely. Pool rooms should be separated from living spaces with properly sealed doors. This prevents moisture migration into your home and allows the dehumidifier to maintain controlled conditions. Leaving doors open will significantly reduce effectiveness.
Q: Can I open windows in summer to “save energy”? A: Generally no. Opening windows introduces humid outdoor air that must be dehumidified, often using more energy than temperature-based savings. Exception: On rare cool, dry days (< 40% RH outside), brief ventilation may help. Keep windows closed during operation.
Accessories & Upgrades
Q: Should I add the heating coil option? A: If your pool room requires supplemental heating beyond the 2.53 kW from dehumidification, yes. The LPHW option (5.28 kW) integrates with existing boilers efficiently. The electric option (3.5 kW) is simpler but more expensive to run. Calculate your heat loss to determine requirements.
Q: Is the wireless remote control worth it? A: For commercial applications or where the unit is mounted high on a wall, yes – very convenient. For residential use with easy access to the control panel, less critical. The remote is particularly useful during initial commissioning for testing different setpoints.
Q: What about connecting to my smart home system? A: The Modbus RTU interface allows integration with BMS systems common in commercial settings. For residential smart home systems (Alexa, Google Home, etc.), there’s no direct integration. However, a smart plug can control power to the unit (though this bypasses the intelligent controls).
Package Contents & Delivery 📦
What’s Included
✅ Dantherm CDP50 dehumidifier unit (66 kg) ✅ Wall suspension bracket with mounting hardware ✅ 2× wall mounting spacers ✅ Condensate drain spigot (3/4″ BSP) pre-installed ✅ Air inlet filter (PPI 15) pre-installed ✅ Front access cover with integrated locks ✅ Installation and operation manual ✅ Service documentation
Not Included (Available Separately)
❌ Condensate drain hose or pipework ❌ Electrical supply cable (must be sourced per BS 7671) ❌ Through-wall duct kit (CDP50T models only) ❌ Wireless remote control (optional accessory) ❌ Floor mounting kit (optional) ❌ External RH/T sensor (optional) ❌ LPHW or electric heating coils (available as variants)
Shipping Information
Product Code: 351516 Carton Dimensions: 1200mm × 850mm × 400mm (approx) Gross Weight: ~70 kg Delivery Classification: Large bulky item Recommended Delivery: 2-person delivery to room of choice
⚠️ Handling Note: Unit should remain upright during transport. If tipped during delivery, allow to stand upright for 1 hour before powering on.
Why Choose Parts4Tubs for Your Dantherm CDP50? 🌟
Authorized UK Distributor
We’re proud to supply genuine Dantherm products with full manufacturer backing. Every CDP50 comes with:
✅ Full 2-year manufacturer’s warranty ✅ Access to technical support and documentation ✅ Spare parts availability throughout product life ✅ Latest firmware versions ✅ Competitive pricing on genuine products
Expert Support
Our team understands pool dehumidification systems. We can help you:
- Determine the correct model for your pool size
- Calculate heating and dehumidification requirements
- Recommend accessories and options
- Provide installation guidance
- Source compatible condensate pumps, heating coils, and controls
Fast UK Delivery
- Stock held in the UK for quick dispatch
- Tracked delivery service
- Delivery to room of choice available
- Installation service available in some areas (enquire)
Technical Compliance & Certifications 📋
The Dantherm CDP50 complies with all applicable UK and European regulations:
Safety & Electrical
✅ Machinery Directive 2006/42/EC ✅ EMC Directive 2014/30/EU (Electromagnetic Compatibility) ✅ RoHS Directive 2011/65/EU (Restriction of Hazardous Substances) ✅ REACH Regulation 1907/2006/EC
Harmonized Standards
✅ DS/EN ISO 12100-2010 – Safety of machinery ✅ EN 60335-1:2012 – Household and similar electrical appliances – Safety Part 1 ✅ EN 60335-2-40:2003 – Particular requirements for heat pumps, air conditioners, and dehumidifiers ✅ EN 378-1:2016 – Refrigerating systems – Safety and environmental requirements Part 1 ✅ EN 378-2:2016 – Refrigerating systems – Safety and environmental requirements Part 2
Environmental
- Uses R407C refrigerant (ozone-friendly, zero ODP)
- Recyclable components (proper disposal required)
- Energy-efficient design reduces carbon footprint
- Long service life minimizes waste
Conclusion: Invest in Professional Moisture Control
The Dantherm CDP50 Wall Mounted Dehumidifier represents the optimal balance of capacity, efficiency, and reliability for medium-sized indoor pool environments. With Danish engineering heritage, corrosion-resistant construction, intelligent controls, and whisper-quiet operation, it delivers professional-grade performance that protects your building fabric, ensures swimmer comfort, and operates economically year-round.
Whether you’re specifying equipment for a new pool project, replacing an aging dehumidifier, or upgrading from inadequate capacity, the CDP50 offers proven technology backed by comprehensive support and documentation.
Ready to Order?
Have Questions? Contact our technical team for:
- Pool room load calculations
- Accessory recommendations
- Installation guidance
- Pricing and availability


