Dantherm CDP40 Wall Mounted Dehumidifier
£3,587.22 Inc VAT
2 in stock
Dantherm CDP40 Wall Mounted Dehumidifier – Professional Pool Humidity Control System 🌊
Eliminate excess moisture and protect your indoor pool environment with the Dantherm CDP40 – a premium Danish-engineered dehumidifier designed specifically for swimming pools, spas, and humid leisure facilities.
The CDP40 combines whisper-quiet operation (just 46dB), impressive 34-litre daily capacity, and energy-efficient performance in a sleek wall-mounted design. Built to withstand harsh pool environments with corrosion-resistant components, this professional-grade unit delivers reliable humidity control year after year.
Professional-Grade Performance for Pool Environments The CDP40 isn’t just another dehumidifier – it’s specifically engineered for the challenging conditions of indoor pool rooms where chlorine, humidity, and temperature fluctuations can quickly damage standard equipment. Every component is built to last.
Space-Saving Wall-Mounted Design Free up valuable floor space with the convenient wall-mounting system. The unit measures just 1010mm wide × 770mm high × 326mm deep, making it perfect for pool rooms where every square metre counts.
Whisper-Quiet Operation At just 46dB(A) at 1 metre distance, the CDP40 operates more quietly than a normal conversation. Your guests can enjoy the pool without intrusive mechanical noise. The through-wall model (CDP40T) is even quieter at just 42dB(A).
Energy Efficiency That Saves Money With a Specific Energy Consumption (SEC) of just 0.47 kWh per litre removed, the CDP40 is one of the most energy-efficient dehumidifiers in its class. It consumes only 0.9kW maximum, helping keep running costs low while delivering powerful performance.
Built to Last in Harsh Environments
- Evaporator and condenser coils feature epoxy coating for superior corrosion resistance
- Metal parts are powder-coated before assembly
- Designed specifically for chlorinated pool environments
- IPX4 splash-proof protection rating
- Uses environmentally-friendly R407C refrigerant
How the CDP40 Works 🔄
The CDP40 uses proven condensation technology specifically optimized for pool environments:
- Air Intake: Humid air from your pool room is drawn into the unit by a powerful yet efficient EC motor fan
- Cooling & Condensation: Air passes through the cold evaporator coil, dropping below dew point. Water vapour condenses into liquid water
- Water Removal: Condensed water drains continuously via the 3/4″ drain connection
- Air Reheating: The now-dry air passes through the hot condenser coil, warming it by approximately 5°C
- Return to Pool Room: Warm, dry air is returned to the pool room, creating a comfortable, controlled environment
The Result: Your pool room maintains optimal humidity levels (typically 50-60% RH) without the cold, damp feeling or condensation problems that plague uncontrolled environments.
Complete Technical Specifications 📊
| Specification | CDP40 | CDP40T (Through-Wall) |
|---|---|---|
| Performance | ||
| Dehumidification Capacity | 34 litres/day (1.4 L/hr) | 34 litres/day (1.4 L/hr) |
| Air Volume | 400 m³/hour | 400 m³/hour |
| Heat Output to Air | 1.62 kW | 1.62 kW |
| Operating Parameters | ||
| Humidity Control Range | 40-100% RH (adjustable) | 40-100% RH (adjustable) |
| Operating Temperature Range | 10-36°C | 10-36°C |
| Electrical | ||
| Power Supply | 230V / 50Hz / 1-phase | 230V / 50Hz / 1-phase |
| Maximum Power Consumption | 0.9 kW | 0.9 kW |
| Maximum Current Draw | 3.8 Amps | 3.8 Amps |
| Recommended Fuse Rating | 10 Amps (motor rated) | 10 Amps (motor rated) |
| Energy Efficiency | ||
| SEC Rating (28°C, 60% RH) | 0.47 kWh/L | 0.47 kWh/L |
| Acoustic Performance | ||
| Sound Pressure Level @ 1m | 46 dB(A) | 42 dB(A) |
| Refrigeration System | ||
| Refrigerant Type | R407C (ozone-friendly) | R407C (ozone-friendly) |
| Refrigerant Quantity | 0.7 kg | 0.7 kg |
| Global Warming Potential (GWP) | 1774 | 1774 |
| Physical Specifications | ||
| Dimensions (W × H × D) | 1010 × 770 × 326mm | 998 × 700 × 304mm |
| Weight | 56.5 kg | 57.5 kg |
| Condensate Drain Connection | 3/4″ BSP | 3/4″ BSP |
| Protection Class | IPX4 (splash-proof) | IPX4 (splash-proof) |
| Air Filter Type | PPI 15 | PPI 15 |
| Mounting Type | Wall bracket included | Through-wall with duct kit |
All performance figures based on: Air at 30°C and 60% RH; Pool water at 28°C
Room Coverage & Performance Guide 🏊
Recommended Pool Room Sizes
The CDP40 is ideally suited for small to medium indoor pool rooms. Here’s a practical guide based on typical pool environments:
| Pool Surface Area | Room Volume* | Typical Applications | Performance Notes |
|---|---|---|---|
| Up to 15m² | Up to 100m³ | Small residential pools, therapy pools, hot tubs | Excellent – Unit will cycle efficiently |
| 15-25m² | 100-150m³ | Medium home pools, small hotel pools | Good – May run more continuously in high humidity |
| 25-35m² | 150-200m³ | Larger residential pools | Adequate for maintenance; consider CDP50 for new builds |
| Over 35m² | Over 200m³ | Large pools, swim spas | Consider CDP50 or CDP70 for optimal performance |
*Assumes 2.5-3m ceiling height
Moisture Extraction Performance
The CDP40 removes up to 34 litres of water per day from your pool room air. To put this in perspective:
- Typical 20m² indoor pool: Generates approximately 25-35 litres/day of evaporation (depending on usage, temperature, and cover usage)
- Small spa/hot tub: Generates approximately 15-25 litres/day
- Therapy pool with heavy use: May generate 30-40 litres/day
Real-World Performance Data ⏱
Dehumidification Time Estimates
How long will it take to bring an excessively humid room back to comfortable levels? Here are realistic estimates:
| Room Volume | Starting RH | Target RH | Estimated Time** | Litres Removed |
|---|---|---|---|---|
| 100m³ | 80% | 60% | 6-8 hours | ~12 litres |
| 100m³ | 90% | 60% | 10-14 hours | ~18 litres |
| 150m³ | 80% | 60% | 9-12 hours | ~18 litres |
| 150m³ | 90% | 60% | 15-20 hours | ~27 litres |
| 200m³ | 80% | 60% | 12-16 hours | ~24 litres |
| 200m³ | 90% | 60% | 20-28 hours | ~36 litres |
Disclaimer: These are estimated times under typical conditions (room temperature 28-30°C, no fresh moisture input). Actual performance varies based on air temperature, initial humidity, room insulation, air circulation, and ongoing moisture sources.
Continuous Operation & Running Costs
Annual Running Cost Estimate:
Assuming typical pool room conditions with the CDP40 operating 8 hours per day on average:
- Daily consumption: 0.9kW × 8 hours = 7.2 kWh
- Annual consumption: 7.2 kWh × 365 days = 2,628 kWh
- Annual cost: £788 (at £0.30/kWh) or £656 (at £0.25/kWh)
💡 Energy-Saving Tip: Use a well-fitted pool cover when the pool isn’t in use. This can reduce moisture evaporation by up to 90%, dramatically cutting your dehumidifier runtime and energy costs.
Installation Requirements 🔧
Wall Mounting Specifications
- Minimum ceiling clearance: 225mm (for airflow)
- Minimum floor clearance: 225mm
- Wall bracket: Included with unit
- Mounting spacers: 2× included in delivery
- Drain requirements: 3/4″ hose connection with minimum 2% fall
Installation Environment Requirements
⚠ Critical Water Chemistry Requirements:
The CDP40 warranty requires strict adherence to water chemistry standards. Chlorinated pool environments must maintain these parameters:
| Parameter | Required Range | Why It Matters |
|---|---|---|
| Free Chlorine | 1.0-2.0 ppm | Higher levels cause corrosive chloramine gas |
| Combined Chlorine | Max. 1/3 of free chlorine | Indicates chloramine formation |
| pH Level | 7.2-7.6 | Outside this range accelerates corrosion |
| Total Alkalinity | 80-150 ppm | Stabilizes pH |
| Calcium Hardness | 250-450 ppm | Prevents scale and corrosion |
| Total Dissolved Solids | <2000 ppm | Higher levels increase corrosion risk |
| Sulphates | <360 ppm | Highly corrosive above this level |
For Salt Chlorinator Pools:
- Salt (NaCl): <30,000 ppm
- Total Dissolved Solids: <5,500 ppm
- Follow all other parameters above
⚠ Important: Failure to maintain these water chemistry levels will void your warranty and can cause premature equipment failure.
Electrical Installation
- Supply required: 230V single-phase, 50Hz
- Fuse: 10A motor-rated fuse
- Connection: Direct connection via IP-rated junction box (included)
- Cable entry: PG cable restrainer (suitable for 9-18mm cable diameter)
- Minimum cable size: 2.5mm²
Drainage Connection
The CDP40 produces condensate continuously during operation. You must provide:
- 3/4″ BSP flexible or rigid drain hose
- Minimum 2% gradient (fall) from unit to drain point
- Drain termination into waste water system
- Optional: Condensate pump if gravity drainage isn’t feasible
📄 Downloads & Technical Documentation
Complete Product Information & Service Guides
📄 Dantherm CDP Service Manual (opens in new tab) Comprehensive 38-page technical service manual covering installation procedures, wiring diagrams, maintenance schedules, troubleshooting guides, spare parts lists, and complete technical specifications for the CDP range. Essential reading for installers and service technicians.
📄 CDP Dehumidifier Product Brochure (opens in new tab) Full-colour product brochure featuring the complete CDP range, performance specifications, dimensional drawings, and available accessories. Includes comparison data for CDP40, CDP50, and CDP70 models with optional heating configurations.
Advanced Control Features 🎛
Integrated Control System
The CDP40 features an advanced digital control system with LCD display showing:
- Current relative humidity (% RH)
- Set point humidity level
- Ambient temperature
- Operating mode
- Error codes and diagnostics
Control Capabilities:
- Humidity setpoint: Adjustable from 40-99% RH (default 60%)
- Hysteresis: ±2% to prevent short cycling
- Fan control options:
- AUTO: Fan + compressor cycle together
- ON: Continuous operation
- FAN: Fan continuous, compressor cycles on humidity
- Service interval timer: Programmable maintenance reminders (1-99 weeks)
- USB data logging: Extract performance data via USB port
- Modbus RTU (RS-485): For Building Management System integration
Intelligent Defrost System
The CDP40 continuously monitors evaporator temperature. When ice formation is detected:
- Fan stops to prevent cold air circulation
- Solenoid valve opens, routing hot gas through evaporator
- Ice melts rapidly
- Normal dehumidification resumes automatically
This intelligent system ensures continuous operation even in cooler pool rooms (down to 10°C).
Safety Features
- High-pressure cutout: Protects compressor from over-pressure conditions
- Low-pressure cutout: Prevents compressor damage from refrigerant loss
- Thermal overload protection: Compressor shuts down at 55°C
- Anti-short-cycle timer: Minimum 6 minutes between compressor starts
- Maximum 10 starts per hour: Prevents compressor damage
Optional Accessories & Upgrades 🛠
Available Add-Ons:
- Wireless Remote Control (DRC1): Control your dehumidifier from anywhere in the pool room
- Floor Mounting Kit: Convert to floor-standing installation if wall mounting isn’t suitable
- LPHW Heating Coil: Add 3.32kW of heating capacity using your existing boiler (total output 4.94kW)
- Electric Heating Element: Add 2kW electric heating (total output 3.62kW) – requires 20A supply
- Through-Wall Duct Kit: Includes filter, extension kit, and aluminium grills for recessed installation
- External RH/T Sensor: Monitor and control humidity from a remote location
Perfect For These Applications 🏢
Primary Applications:
✅ Residential Indoor Pools – Keep your home pool room dry, comfortable, and condensation-free
✅ Therapy & Hydrotherapy Pools – Maintain optimal conditions for rehabilitation and wellness facilities
✅ Hotel & Spa Pools – Provide guests with a comfortable, professional pool environment
✅ Fitness Centre Pools – Protect expensive gym equipment from humidity damage while keeping swimmers comfortable
✅ Holiday Park Swimming Pools – Reliable, low-maintenance humidity control for seasonal operations
✅ School & Community Pools – Safe, quiet operation suitable for educational environments
✅ Hot Tub Rooms – Prevent condensation and mould in dedicated spa enclosures
Maintenance & Care Schedule 📅
Monthly Maintenance (5 minutes):
- Clean or vacuum the air filter (PPI 15 type)
- Check condensate drain is flowing freely
- Inspect drip tray for debris
- Wipe down exterior surfaces
Annual Service (30 minutes):
- Vacuum clean condenser coils thoroughly
- Inspect evaporator coils for ice buildup or damage
- Check all electrical connections
- Test safety cutouts
- Verify refrigerant charge (service technician)
- Download and review USB log data
💡 Replacement Filter: Order part number 094686 through your Dantherm dealer
Frequently Asked Questions ❓
How much electricity does the CDP40 use?
The CDP40 consumes a maximum of 0.9kW (900 watts) when running. With typical usage of 8 hours per day, expect annual electricity costs between £650-800 depending on your electricity rate and usage patterns. Its efficient 0.47 kWh/L SEC rating means it’s one of the most economical dehumidifiers available for pool applications.
How loud is the CDP40?
Very quiet! At just 46dB(A) measured at 1 metre distance, it’s quieter than normal conversation (60dB) and significantly quieter than most dehumidifiers. The through-wall CDP40T model is even quieter at 42dB(A) since it’s mounted partially outside the pool room.
Can I install this myself?
While mechanically capable individuals can handle the wall mounting, we strongly recommend professional installation. The unit requires proper electrical connection by a qualified electrician, appropriate drainage installation, and correct positioning to ensure optimal performance and warranty compliance. Incorrect water chemistry or installation voids the warranty.
What size pool room will the CDP40 handle?
The CDP40 is ideal for pool rooms up to approximately 25-30m² surface area (100-150m³ volume) with typical residential usage. For larger pools, commercial facilities, or pools with very heavy use, consider the CDP50 (52L/day) or CDP70 (69L/day) models.
How often does the drain need emptying?
Never! The CDP40 uses continuous gravity drainage through the 3/4″ drain connection. It should be plumbed directly into your waste water system. There’s no tank to empty – the unit operates 24/7 unattended.
Will it work in cold weather?
Yes. The CDP40 operates effectively in temperatures from 10-36°C. Below 10°C, the intelligent defrost system activates more frequently to prevent ice buildup. If your pool room regularly drops below 10°C, additional heating may be required for optimal comfort and performance.
What’s the difference between CDP40 and CDP40T?
The CDP40 is wall-mounted with air intake and discharge on the front. The CDP40T is a “through-wall” model that mounts partially through the wall, with air intake on one side and discharge on the other. The CDP40T is slightly quieter (42dB vs 46dB) and better for installations where you want the unit partially concealed or where noise is a particular concern.
Does it need annual servicing?
Yes. Annual service ensures optimal performance, energy efficiency, and longevity. The service includes filter cleaning/replacement, coil inspection and cleaning, checking refrigerant levels, and verifying all safety systems. Many insurance policies require annual service for pool room equipment.
Why is water chemistry so important?
Indoor pool dehumidifiers work in harsh environments with chlorine, moisture, and temperature fluctuations. Poor water chemistry creates corrosive chloramine gas that rapidly damages electronic components, coils, and metal parts. Maintaining correct chemistry (as specified above) is essential for equipment longevity and warranty validity.
Can I control it remotely or via smart home?
The CDP40 features Modbus RTU (RS-485) connectivity for integration with Building Management Systems. An optional wireless remote control (DRC1) is available. While it doesn’t have native smart home integration, the Modbus interface can connect to compatible automation systems.
What warranty is included?
The CDP40 includes a 2-year manufacturer’s warranty (first year parts and labour, second year parts only) subject to proper installation and water chemistry maintenance. Extended warranty options may be available through your supplier.
How do I know if my pool room needs a dehumidifier?
Signs you need a dehumidifier include: condensation on windows or walls, damp or musty smell, mould or mildew growth, rusting of metal fixtures, peeling paint, uncomfortable “sticky” feeling in the air, or consistently high humidity readings (above 65% RH). An indoor pool room without dehumidification will always have these problems.
Why Choose Parts4Tubs for Your Dantherm CDP40? 🌟
When you purchase your Dantherm CDP40 dehumidifier from Parts4Tubs, you’re choosing more than just a product – you’re choosing expertise, support, and peace of mind.
Expert Guidance: Our team understands pool and spa equipment inside and out. We can help you select the right model, plan your installation, and ensure your water chemistry is correctly maintained.
Genuine Dantherm Product: All our Dantherm units are supplied directly from authorized distributors, ensuring you receive a genuine product with full manufacturer warranty.
Technical Support: We’re here to help with installation questions, troubleshooting, and maintenance advice throughout the life of your equipment.
Competitive Pricing: We offer excellent value on professional-grade equipment without compromising on quality or service.
Product Summary 📋
The Dantherm CDP40 Wall Mounted Dehumidifier is the professional’s choice for indoor pool humidity control. With Danish engineering excellence, exceptional build quality, whisper-quiet operation, and energy-efficient performance, it delivers reliable moisture control year after year.
Key Highlights:
- 34 litres/day dehumidification capacity
- Ultra-quiet 46dB operation (42dB for through-wall model)
- Energy-efficient 0.47 kWh/L SEC rating
- Corrosion-resistant construction for pool environments
- Advanced digital control with USB data logging
- Intelligent defrost system for year-round operation
- IPX4 splash-proof protection
- Modbus connectivity for BMS integration
- 2-year manufacturer warranty
Ideal for: Indoor pools up to 25m², spa facilities, therapy pools, hotel pools, fitness centers, and any environment requiring professional humidity control.
Installation Type: Wall-mounted or through-wall configuration
Made in Denmark – Engineered for reliability and built to last
Transform your pool environment with professional humidity control. Order your Dantherm CDP40 today and enjoy a comfortable, condensation-free pool room for years to come.
| Supplier | GoldenC |
|---|
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