Dantherm CDP70T Through-Wall Commercial Pool Dehumidifier – 69L/Day Professional Moisture Control 🏊‍♂️

Transform Your Pool Environment with Maximum-Capacity Professional Dehumidification

The Dantherm CDP70T represents the pinnacle of commercial pool dehumidification technology. Engineered in Denmark for demanding aquatic environments, this through-wall system delivers an impressive 69 litres per day moisture removal capacity while maintaining whisper-quiet operation and exceptional energy efficiency. Perfect for commercial swimming pools, spa facilities, therapy pools, and professional aquatic centers where reliable humidity control is non-negotiable.

Commercial pool environments face unique challenges: constant moisture, chemical-laden air, and the need for 24/7 reliable operation. The CDP70T solves these challenges with maximum-capacity dehumidification designed specifically for the harsh conditions of indoor aquatic facilities. The innovative through-wall installation design saves valuable pool room space while delivering the muscle needed to keep humidity levels perfectly controlled.

Real-World Performance: In a typical 15m x 8m commercial pool facility operating at 28°C with 60% humidity, the CDP70T maintains optimal conditions while adding approximately 3.24 kW of heat back into the space – helping reduce your overall heating costs.

🌟 Key Features & Benefits

Maximum Moisture Removal Capacity

• 69 litres per day extraction at optimal conditions (28°C, 60% RH)
• 2.8 litres per hour continuous removal rate
• Handles high-demand commercial environments with ease
• Ideal for pools up to 120m² surface area

Space-Saving Through-Wall Design

• Professional equipment room installation – unit mounts through the wall between equipment room and pool area
• Pool room stays uncluttered with equipment hidden away
• Easy maintenance access from equipment room side
• Reduces noise transmission to pool area
• Sound level: Just 47 dB(A) in pool room – quieter than normal conversation

Energy-Efficient Operation

• 1.8 kW maximum power consumption despite high capacity
• Low SEC rating of 0.43 kWh/litre – among the most efficient in its class
• 3.24 kW heat output returned to pool space reduces heating requirements
• Smart defrost system prevents ice buildup and maintains efficiency
• Automatic controls optimize operation without manual intervention

Built for Commercial Pool Environments

• Epoxy-coated evaporator and condenser coils resist chlorine corrosion
• Powder-coated metal components throughout for maximum durability
• R407C refrigerant – environmentally responsible and efficient
• IP X4 protection rating handles humid, splashing environments
• Designed for continuous 24/7 operation

Intelligent Control System

• Adjustable humidity setpoint (40-99% RH)
• Built-in temperature and humidity sensors
• Optional external sensor for precise pool room monitoring
• Modbus BMS integration for centralized facility management
• USB data logging for performance tracking
• LED status indicators show operational status at a glance

📋 Complete Technical Specifications

Performance Specifications

Specification	Value
Dehumidification Capacity	69 L/day (2.8 L/hour)
Air Volume	900 m³/hour
Operating Temperature Range	10°C to 36°C
Operating Humidity Range	40% to 100% RH
Heat Output to Pool Room	3.24 kW
SEC Rating (28°C, 60% RH)	0.43 kWh/litre
Sound Level (1m)	47 dB(A) in pool room

Electrical Specifications

Specification	Value
Power Supply	230V / 1 Phase / 50Hz
Maximum Power Consumption	1.8 kW
Maximum Current Draw	8 Amps
Recommended Fuse Rating	20 Amps (motor rated)

Physical Specifications

Specification	Value
Width (Unpacked)	1,483 mm
Height (Unpacked)	700 mm
Depth (Unpacked)	304 mm
Weight	77.5 kg
Wall Opening Required	1,095 mm width × 395 mm height
Condensate Drain Connection	3/4″ BSP

Refrigeration System

Specification	Value
Refrigerant Type	R407C (ozone friendly)
Refrigerant Quantity	1.2 kg
Global Warming Potential (GWP)	1774
Filter Type	PPI 15
Protection Class	IPX4

📄 Downloads & Technical Documentation

Complete Product Information at Your Fingertips

📄 CDP Service Manual (opens in new tab) Comprehensive 38-page technical service manual covering installation procedures, wall-mounting instructions, electrical connections, control panel operation, maintenance schedules, troubleshooting guides, wiring diagrams, spare parts identification, and complete technical specifications for the entire CDP range. Essential for installers and maintenance technicians.

📄 CDP Dehumidifier Product Brochure (opens in new tab) Full-color brochure featuring complete specifications for all CDP models including wall-mounted and through-wall variants, performance data at various conditions, optional accessories, dimensional drawings, and model comparison charts. Perfect for specification and quotation purposes.

🏊 Room Size & Performance Guidelines

Recommended Pool Coverage

The CDP70T is designed for commercial and large residential indoor pools. Use these guidelines to determine suitability:

Pool Surface Area	Water Volume	Suitability	Performance Notes
Up to 80m²	Up to 240m³	✅ Excellent	Handles peak usage with capacity to spare
80-120m²	240-360m³	✅ Ideal	Optimal performance range for this model
120-150m²	360-450m³	⚠ Adequate	Suitable with good ventilation practices
Over 150m²	Over 450m³	❌ Consider Multiple Units	May require CDP70T + CDP50T or multiple CDP70T units

Dehumidification Performance by Pool Temperature

Pool Temperature	Air Temperature	Expected RH Control	Moisture Removal
26°C	28°C	Maintains 50-60%	62-65 L/day
28°C	30°C	Maintains 50-60%	69 L/day (rated)
30°C	32°C	Maintains 55-65%	72-75 L/day
32°C	34°C	Maintains 60-70%	75-78 L/day

💡 Note: Air temperature should be maintained 2°C above pool water temperature for optimal performance and user comfort. The CDP70T adds approximately 5°C temperature rise to air passing through the unit.

💰 Energy & Operating Cost Analysis

Daily Operating Costs (Typical UK Energy Rates)

Based on £0.24 per kWh electricity rate and 10 hours daily operation:

Operating Scenario	Power Draw	Daily Cost	Monthly Cost	Annual Cost
Continuous Maximum	1.8 kW	£4.32	£129.60	£1,555.20
Typical Usage (60% duty)	1.08 kW avg	£2.59	£77.76	£933.12
Light Usage (40% duty)	0.72 kW avg	£1.73	£51.84	£622.08

Energy Efficiency Advantages

✅ Heat Recovery Benefit: The CDP70T returns 3.24 kW of heat to your pool room – heat that would otherwise be wasted. This recovered heat can offset heating costs by approximately £1,500-£2,500 annually depending on your pool heating system.

✅ Compared to Gas Heating: Dehumidification with heat recovery is approximately 40-60% more cost-effective than maintaining humidity through increased ventilation and supplemental heating.

✅ Low SEC Rating: At 0.43 kWh per litre removed, the CDP70T is among the most efficient commercial dehumidifiers available, using 25-35% less energy than older technology units of similar capacity.

⏱ Real-World Application: Moisture Removal Timelines

How Quickly Can It Dehumidify Your Space?

The CDP70T removes 2.8 litres per hour under optimal conditions. Here’s what that means in practical scenarios:

Example 1: Starting a New Pool Season

Scenario: Pool room closed for winter maintenance, humidity risen to 80%, need to bring down to 60%

Room Volume	Initial Humidity	Target Humidity	Approx. Time to Target
400m³	80% RH	60% RH	18-24 hours
600m³	80% RH	60% RH	28-36 hours
800m³	80% RH	60% RH	38-48 hours

Example 2: Daily Maintenance Mode

Scenario: Pool in regular use, maintaining 60% RH during 8-hour operating day

Pool Usage Level	Moisture Generated	CDP70T Operation	Result
Light (10 users)	~15 L/day	4-5 hours active	Maintains 55-60% RH
Moderate (25 users)	~35 L/day	6-8 hours active	Maintains 58-63% RH
Heavy (50 users)	~60 L/day	8-10 hours active	Maintains 60-65% RH

⚠ Important Note: These are estimates based on typical conditions. Actual performance varies with pool temperature, air temperature, ventilation rates, pool cover usage, and facility design. The unit may cycle on/off throughout the day rather than running continuously.

🔧 Installation & Setup Requirements

What You Need to Know Before Installation

Wall Opening Requirements

• Opening size: 1,095mm width × 395mm height minimum
• Wall thickness: Suitable for walls up to 450mm thick (with extension kit)
• Weight support: Wall must support 77.5kg distributed load
• Access: Equipment room side requires 500mm clearance for maintenance

Clearance Requirements

• Minimum ceiling clearance: 225mm above unit
• Minimum floor clearance: 225mm below unit
• Side clearance: 100mm each side for airflow
• Front access (equipment room): 800mm for filter access and service

Drainage Requirements

• 3/4″ BSP condensate connection at base of unit
• Drainage must have minimum 2% fall (2cm drop per meter)
• Typical 15m pool generates 50-80 litres daily condensate
• Can connect to floor drain, pumped system, or external drainage

Electrical Requirements

• 230V single phase supply with 20A motor-rated fuse/breaker
• Dedicated circuit recommended for commercial installations
• Cable entry via PG gland (9-18mm cable diameter)
• Must comply with local electrical regulations (17th Edition UK)

💡 Professional Installation Required: Due to refrigerant systems, electrical requirements, and wall penetration, professional installation by qualified technicians is mandatory and required for warranty validation.

🎯 Perfect Applications

Where the CDP70T Excels

✅ Commercial Swimming Pools Public and private pools, leisure centers, fitness clubs – anywhere reliable moisture control is essential for user comfort and building protection.

✅ Therapy & Rehabilitation Pools Hospitals, physiotherapy centers, rehabilitation facilities requiring consistent environmental conditions for patient comfort and health.

✅ Hotel & Resort Pools Luxury hotels, wellness resorts, spa facilities where guest experience demands perfect air quality and humidity control.

✅ School & Community Pools Educational facilities, community centers requiring robust, low-maintenance equipment that operates reliably year-round.

✅ Holiday Parks & Campsites Indoor pool facilities at holiday destinations requiring dependable equipment with minimal operator intervention.

✅ Health Clubs & Wellness Centers Gyms with pools, wellness centers, country clubs demanding premium environmental quality for discerning members.

❓ Frequently Asked Questions

Q: How does the CDP70T compare to portable pool dehumidifiers? A: The CDP70T is a permanent, professionally-installed system designed for continuous commercial operation. Unlike portable units, it features through-wall installation for space efficiency, higher capacity (69L/day vs. typical 20-30L/day for portables), lower noise levels in the pool room, and commercial-grade construction with chlorine-resistant coatings. It’s built for reliability and longevity in demanding environments where portable units would struggle.

Q: What makes the “through-wall” installation beneficial? A: Through-wall installation offers multiple advantages: (1) Keeps equipment room clutter-free while maintaining quiet pool environment, (2) Easy maintenance access from equipment room without disrupting pool users, (3) Reduces noise in pool area by 3-4 dB compared to wall-mounted versions, (4) Better air circulation patterns for more effective dehumidification, (5) Equipment protected from splashing and pool chemicals.

Q: Can I install this myself or do I need a professional? A: Professional installation is required. The CDP70T involves wall penetration, structural mounting, refrigerant systems, electrical connections requiring certification, and precise setup for optimal performance. Installation must be performed by qualified HVAC/refrigeration technicians and electricians. DIY installation will void your warranty and may violate building regulations and refrigerant handling laws.

Q: How often does the CDP70T require maintenance? A: Monthly: Clean the PPI 15 air filter (vacuum or wash in warm soapy water). Annually: Professional service including coil inspection, vacuum cleaning of condenser, electrical connection checks, refrigerant system check, and controller function testing. The unit features a built-in service interval reminder that can be set via the control panel (default: off, adjustable 1-99 weeks).

Q: What happens if the unit detects ice on the evaporator? A: The CDP70T features an intelligent automatic defrost system. Temperature sensors continuously monitor the evaporator coil. When ice formation is detected, the unit automatically switches to defrost mode: fans stop, the hot gas valve opens, and warm refrigerant melts the ice. Once defrost is complete (typically 3-8 minutes), normal dehumidification resumes automatically. This happens transparently without operator intervention.

Q: Is this unit suitable for saltwater or ozone pools? A: Yes, with proper water chemistry management. The CDP70T features epoxy-coated coils and powder-coated metal components designed to resist corrosion in chlorine environments. For saltwater pools (up to 30,000 ppm salt), ensure total dissolved solids remain below 5,500 ppm. For ozone systems, maintain proper chemical balance as specified in the service manual. Monitor water chemistry according to the guidelines provided in the technical documentation.

Q: How loud is the CDP70T in the pool room? A: The through-wall design achieves just 47 dB(A) at 1 meter in the pool room – comparable to quiet library conditions or soft background music. This is 3 dB quieter than the wall-mounted CDP70 version. The equipment room side is louder (50 dB(A)) but this is typically irrelevant as it’s in an unoccupied mechanical space. Noise levels are suitable for even the most noise-sensitive commercial applications.

Q: What’s included in the warranty? A: Dantherm provides a two-year manufacturer’s warranty: First year covers both parts and labor, second year covers parts only. Warranty requires professional installation, proper commissioning, adherence to water chemistry guidelines (documented in service manual), and completion of recommended maintenance schedules. Extended warranty options may be available – contact your supplier for details.

Q: Can the CDP70T be controlled remotely or integrated with building management systems? A: Yes, multiple control options available: (1) Built-in control panel with full programming, (2) Optional DRC1 wireless remote control for convenient adjustment from pool deck, (3) Modbus RTU (RS-485) interface for BMS integration enabling monitoring and control via building automation systems, (4) USB port for data logging and software updates. External humidity/temperature sensors can also be connected for remote sensing.

Q: What if my pool is larger than the recommended coverage area? A: For pools exceeding 150m² surface area, consider multiple unit installations. A common approach is combining a CDP70T with a CDP50T for 150-200m² pools, or installing two CDP70T units for pools over 200m². Multiple units provide redundancy, can be located at opposite ends for better air circulation, and allow staged operation to save energy during off-peak times. Consult with your Dantherm dealer for multi-unit system design.

Q: How does the CDP70T handle varying occupancy levels? A: The unit’s automatic hygrometric control adjusts operation based on actual humidity levels. During low occupancy (weekday mornings), the unit may run just 3-4 hours daily. During peak times (weekend afternoons, school holidays), it ramps up to 8-10 hours daily. The smart control system ensures energy isn’t wasted while maintaining optimal conditions. You can also connect it to your facility management system to coordinate with known usage patterns.

Q: What’s the expected lifespan of the CDP70T? A: With proper installation, regular maintenance, and correct water chemistry management, expect 12-15 years of reliable service. The commercial-grade compressor, corrosion-resistant coatings, and robust Danish engineering ensure longevity. Annual professional service and monthly filter cleaning are essential for achieving maximum lifespan. Many Dantherm commercial installations exceed 15 years with proper care.

⚠ Important Operating Considerations

Water Chemistry Requirements for Warranty Validation

The CDP70T’s warranty requires maintaining proper pool water chemistry. Failure to maintain these parameters can cause premature corrosion and will void your warranty:

For Chlorine-Treated Pools:

• Free chlorine: 1.0-2.0 ppm
• Combined chlorine: Maximum 1/3 of free chlorine
• pH: 7.2-7.6
• Total alkalinity: 80-150 ppm
• Calcium hardness: 250-450 ppm
• Total dissolved solids: Below 2,000 ppm
• Sulphates: Below 360 ppm

For Salt-Water Pools (Self-Chlorinating):

• Salt (NaCl): Below 30,000 ppm
• Total dissolved solids: Below 5,500 ppm
• pH: 7.2-7.6
• Total alkalinity: 80-150 ppm
• Calcium hardness: 250-450 ppm
• Sulphates: Below 360 ppm

💡 Use the Langelier Saturation Index to ensure proper water balance. Contact Dantherm or your pool professional if you need assistance with water chemistry management.

Best Practices for Optimal Performance

✅ Keep Doors and Windows Closed: When the dehumidifier operates, ensure the pool room is sealed to prevent humid air infiltration and energy waste.

✅ Position Away from Heat Sources: Don’t install near radiators, boilers, or other heat-generating equipment that could affect temperature readings.

✅ Regular Filter Maintenance: Clean the PPI 15 filter monthly. A clogged filter reduces airflow by up to 30% and increases energy consumption.

✅ Monitor Condensate Drainage: Check weekly that condensate flows freely. Blocked drainage can cause the drip tray to overflow and trigger safety shutoffs.

✅ Use Pool Covers When Possible: During closed hours, pool covers reduce evaporation by 90%, dramatically reducing the dehumidifier’s workload and saving energy.

Safety Features & Protections

🛡️ Compressor Protection: Built-in timer prevents more than 10 compressor starts per hour, extending compressor life and preventing overload.

🛡️ High Temperature Cutout: If internal temperature exceeds 55°C (due to fan failure or excessive ambient temperature), the compressor automatically shuts down to prevent damage.

🛡️ Low Pressure Protection: Monitors refrigerant pressure and shuts down if a leak is detected, preventing compressor damage.

🛡️ High Pressure Protection: Protects against condenser blockage or fan failure by monitoring high-side pressure.

🛡️ Sensor Fault Detection: LED indicators and display codes alert you to sensor failures before they impact performance.

📦 What’s Included

Standard Package Contents

✅ Dantherm CDP70T dehumidifier unit
✅ Wall mounting bracket and hardware
✅ Wall mounting spacers (2)
✅ Through-wall duct kit with inlet/outlet grills
✅ PPI 15 replacement air filter
✅ Condensate drain spigot (3/4″ BSP)
✅ Installation manual and documentation
✅ Two-year manufacturer warranty

Optional Accessories (Sold Separately)

🔧 DRC1 Wireless Remote Control – Convenient adjustment from pool deck
🔧 Floor Mounting Kit – For non-wall installation scenarios
🔧 LPHW Air Heating Coil – Integrate with boiler system (adds 7.56 kW heat)
🔧 Control Valve for LPHW Coil – Automated temperature control
🔧 Electric Heating Coil – Standalone electric heating (adds 5 kW heat)
🔧 Wall Duct Extension Kit – For walls thicker than standard
🔧 Additional Air Filters – Stock spares for preventive maintenance

🌍 Why Choose Dantherm?

Danish Engineering Excellence Since 1958

Dantherm has been manufacturing climate control solutions for over 60 years, earning a reputation for quality, reliability, and innovation in demanding commercial applications. The CDP range represents the culmination of decades of pool environment expertise, combining cutting-edge refrigeration technology with robust construction designed for the harsh realities of commercial aquatic environments.

ISO 9001 Quality Management

Every CDP70T is manufactured under ISO 9001:2015 certified quality management systems at Dantherm’s Danish facility, ensuring consistent quality and reliability. Rigorous testing and quality control procedures guarantee that your unit meets the highest standards before it leaves the factory.

Environmental Responsibility

Dantherm is committed to environmental stewardship. The CDP70T uses R407C ozone-friendly refrigerant, features energy-efficient components throughout, and is designed for longevity to minimize waste. At end-of-life, components are recyclable according to national regulations.

Global Support Network

With distributors and service partners throughout the UK and internationally, Dantherm provides comprehensive support including technical assistance, spare parts availability, and qualified service technicians. Your investment is protected by a network of professionals who understand commercial pool environments.

🏅 Compliance & Certifications

The Dantherm CDP70T complies with all relevant UK and European standards:

✅ 2006/42/EC – Machinery Directive
✅ 2014/30/EU – EMC Directive
✅ 2011/65/EU – RoHS Directive (Restriction of Hazardous Substances)
✅ 1907/2006/EC – REACH Regulation
✅ DS/EN ISO 12100-2010 – Safety of Machinery
✅ EN 60335-1:2012 – Electrical Safety Standards
✅ EN 378-1:2016 – Refrigerating Systems Safety
✅ F-Gas Regulations – Proper refrigerant handling and disposal

📞 Technical Support & Ordering

Need Expert Advice?

Selecting the right dehumidification system is crucial for your facility’s success. Our technical team can assist with:

• Pool room assessments and sizing calculations
• Multi-unit system design for large facilities
• Integration with existing HVAC systems
• BMS integration and control strategies
• Water chemistry consultation
• Installation planning and contractor recommendations

Ready to Order?

Contact your authorized Dantherm dealer or Parts4Tubs directly for:

• Current pricing and availability
• Custom quotations for your project
• Installation service arrangements
• Warranty registration assistance
• Spare parts and accessories
• Maintenance contract options

💡 Final Thoughts: Investment in Long-Term Performance

The Dantherm CDP70T represents more than just a dehumidifier – it’s an investment in the longevity of your facility, the comfort of your users, and the protection of your building infrastructure. Proper humidity control prevents costly damage from condensation, protects mechanical equipment from corrosion, maintains air quality for user health, and creates the pleasant environment that keeps customers returning.

With 69 litres daily capacity, energy-efficient operation, commercial-grade construction, and intelligent controls, the CDP70T delivers professional performance that pays dividends for years to come. Danish engineering, ISO 9001 manufacturing quality, and comprehensive warranty coverage provide the peace of mind that your investment is protected.

Make the smart choice for your commercial pool environment. Choose the Dantherm CDP70T.

This product page is optimized for WordPress visual editor (Gutenberg/Classic Editor). All specifications, performance data, and recommendations are based on manufacturer documentation and typical commercial pool operating conditions. Actual performance may vary based on specific installation conditions, usage patterns, and environmental factors. Professional installation and adherence to water chemistry guidelines are required for warranty validation. Specifications subject to change without notice.