Master DH 732 P – Condensation Dehumidifier (30 l/day)

The Master DH 732 P is a condensation dehumidifier for regulating humidity in larger rooms. It removes up to 30 l/24h (at 30 °C / 80 % r.h.) with an air flow of 200 m³/h, is recommended for rooms of up to 180 m² / 450 m³ and collects the condensate in a 6.5-litre water tank. Built-in hygrostat with digital control, memory function, hour counter and automatic shut-off when the tank is full make it suitable for basements, storage rooms and utility rooms as well as commercial and construction use.

How it works

The fan draws humid room air through the air filter across the cold evaporator, where the excess moisture condenses and drains into the water tank. The dried air then passes the warm condenser and re-enters the room at a slightly higher temperature.

On the control panel you switch the unit on and off and set the target humidity with the humidity up/down buttons between 40 % and 80 % in 1 % steps; when the set value is reached, the compressor stops automatically. The display normally shows the room humidity (measuring range 35 % to 95 %). With the memory button pressed, the unit remembers its last settings. According to the manual, the unit has a hot gas defrost function: if the coil temperature drops to -1 °C or lower, it defrosts for about 5 minutes while compressor and fan keep running. A 7-digit hour counter records the total operating time.

Key benefits

• Automatic humidity control — built-in hygrostat with digital setting of the target humidity in 1 % steps.
• Overflow protection — automatic shut-off with tank full indicator and buzzer when the 6.5-litre tank is full.
• Continuous drainage — connection for an external condensate drain hose, so the tank does not need to be emptied by hand.
• Memory function — the unit remembers the last settings.
• Hour counter — records the operating time, useful for service intervals and job documentation.
• Protected components — air filter on the inlet, easy to clean.
• Mobile — plastic transport rollers and, according to the manual, an adjustable handle.

Typical applications

• Living spaces, basements, storage rooms and laundry rooms
• Construction sites and water damage restoration
• Commercial buildings, industry and production
• Rental fleets

Operating conditions and installation

• Operating temperature: 5 °C to 35 °C; relative humidity: 35 % to 95 % r.h. Below 5 °C the display shows "EL".
• Minimum room size: 4 m². According to the manual, the unit must be installed, operated and stored in a room with a floor area larger than 4 m² (refrigerant R290).
• Electrical supply: 220–240 V, 50 Hz; power consumption 500 W.
• Indoor use only. Place the unit on a level surface with at least 10 cm of free space on either side for efficient air flow; keep outside doors and windows closed during operation.
• After transport or tilting, let the unit stand for 12 hours before connecting it to the mains.
• For continuous drainage, remove the drain knob and rubber plug (keep them for later use), connect the drain tube to the water outlet and lead the other end into a drain.

Scope of delivery

The scope of delivery follows the manufacturer's specification; please ask us if you need a detailed list.

Technical data

• Article number: 4512493 · EAN: 5904542924853
• Length without packaging: 358 mm
• Length with packaging: 402 mm
• Width without packaging: 338 mm
• Width with packaging: 387 mm
• Height without packaging: 550 mm
• Height with packaging: 592 mm
• Weight without packaging: 19.5 kg
• Weight including packaging: 21 kg
• Recommended room size: 180 m² / 450 m³
• Water tank capacity: 6.5 l
• Max. dehumidification capacity: 30 l/24h
• Max. air flow: 200 m³/h
• Mains connection and frequency: 220–240 V, 50 Hz
• Power consumption: 500 W
• Sound pressure level: 42 dB(A)
• Max. operating temperature: 35 °C
• Min. operating temperature: 5 °C
• Minimum room size: 4 m²
• Max. relative humidity: 95 % r.h.
• Min. relative humidity: 35 % r.h.
• CO2 equivalent: 0.0004 t
• GWP factor: 3
• Refrigerant quantity: 120 g
• Refrigerant type: R290
• Device type: condensation
• Equipment: air filter; built-in hygrostat; connection for external condensate drain; digital control; memory function; operating hours counter
• Compressor: rolling piston compressor
• Condensate drain: hose connection possible; with condensate drain; with water tank
• Condensate tank monitoring: overflow protection with automatic switch-off
• Design: plastic transport rollers
• Air flow, max. stage: 200 m³/h
• Dehumidification capacity at 30 °C / 80 % r.h.: 30 l/24h
• Dehumidification capacity at 20 °C / 60 % r.h.: 13 l/24h
• Dehumidification capacity, max.: 30 l/24h

Frequently asked questions

What happens when the water tank is full?
The compressor stops as a protective measure, the "Water Tank Full" indicator lights up and a buzzer sounds. After emptying, put the tank back correctly; the indicator goes out and the unit resumes operation. For longer jobs, connect a drain hose for continuous drainage.

Why does the compressor not start immediately?
When the unit is switched on for the first time or right after switching off, a 3-minute delay protects the compressor. When the unit is first switched on without a stored memory setting, the compressor starts provided the room humidity is above 50 %.

What do "LO", "HI" and "EL" on the display mean?
"LO" means the room humidity is below 35 %, "HI" means it is above 95 %, and "EL" indicates a room temperature below 5 °C, which is outside the operating range.

How do I maintain the unit?
Unplug the unit, take out the filter and clean it with a vacuum cleaner or by tapping it lightly; if very dirty, wash it in warm water with a little mild detergent and let it dry completely. Wipe the housing with a soft cloth only.

Original Master equipment (Dantherm Group) — supplied with full manufacturer documentation by BMB Rheinland, your authorised distribution partner.

Planning a project or a larger requirement? Request a quote.

Downloads

• 📄 Operating manual Master DH 732 P (multilingual, incl. EN/DE)