Zehnder ComfoAir 155 WMe

Zehnder ComfoAir 155 WMe for wall or cupboard mounting - CA155WMe-GB

The Zehnder ComfoAir 155 WMe is a wall-mounted MVHR unit suitable for properties up to 150m² and manufactured in Germany to a high standard .
This unit is similar to the 155WM but has a lower SF and energy rating (A), as well as a reduced heat recovery rate.
BPC Ventilation are the largest independent MVHR specialists and provide lifetime technical support on our top-quality systems.

Key Features

• Suitable for home sizes up to 150m²
• Airflow rate @100Pa: 285m³/h
• 90% heat recovery efficiency
• 100% full and filtered modulating summer bypass
• Internal humidity sensor
• SFP as low as 0.5 wls
• Left- or right-hand configuration via software
• 100% variable AUX speed for way mode, medium speed, or purge boost
• BMS compatibility option
• Volt free contact
• Adaptive comfort technology
• G3 filtration
• Tool-free filter access
• SAP Appendix Q listed

Controllability

The Zehnder ComfoAir units offer optional boost switches and room sensors for demand-controlled ventilation.

Inputs

• Volt free contact boost capability
• 240v switched live capability

Wall Controllers Options

1. Zehnder ZGRC1
   A two-position switch allowing manual selection of ventilation system flow rate.
   Key Benefits:

   • 2 separate ventilation flow rate options
   • Summer bypass indicator
   • Frost protection indicator
   • Service & maintenance alert
   • Automatic switch-back to low speed after pre-set time

2. Zehnder ZGS1
   A three-position switch for manual selection of ventilation flow rate.

3. Zehnder ZGS2
   A two-position switch for manual selection of ventilation flow rate.

Room Sensors Options

1. Zehnder AQR - Air Quality Sensor

   • Detects pollutants (hydrogen, CO, methane, ethanol, isobutane)
   • Adjustable overrun timer (2-40 mins) ⏲

2. Zehnder PIRR - Passive Infra-Red Movement Sensor

   • Senses movement up to 7m
   • Adjustable overrun timer (2-40 mins) ⏲

3. Zehnder HHR - Humidity Sensor

   • Set humidity activation between 30-90%
   • Adjustable overrun timer (2-40 mins) ⏲

4. Zehnder THR - Temperature Sensor

   • Set temperature activation between 5-35°C
   • Fixed 2-minute overrun timer ⏲

BMS Control

BMS integration is possible .

Integral Humidity Sensor

The integral humidity sensor increases speed in proportion to relative humidity levels, saving energy and reducing noise.

Installation

• Wall bracket included with the unit
• Special pod wall/cupboard mounting option available (ideal for secure fixing during pod transportation)

Construction

• Manufactured with EPP and plastic outer covers

Motors

• High-quality EC motors

Filtration

• 2 x G4 filters are fitted (easy to replace)
• Optional G4 filter for air supply

Summer Bypass

• 100% Summer By-Pass functionality

Low Noise Levels

• Quiet operation for comfort

Heat Exchanger

• Efficient heat recovery

Frost Protection

• Equipped with a frost protection program

Orientation

The unit can be changed from left- or right-hand configuration via software alone, with no mechanical alteration needed .

Warranty

• 2-year warranty, extendable to 6 years (register through the Zehnder website within 6 months of purchase)

Approvals

• SAP Appendix Q listed

Accessories

• Various additional accessories available to complete your ventilation system setup .

Further Information

For more details, visit the manufacturer's website