Гарантія

📋 Overview
The CH-HRV3.5KDC is a supply-&-exhaust ventilation unit with heat recovery (“recuperator”) designed to recover heat from exhaust air and pre-condition the fresh intake air. It’s part of the KDC series from Cooper & Hunter.
It is intended for mid-sized residential, commercial, or institutional use (apartments, houses, offices) where balanced ventilation with energy recovery is desired.

🔧 Specifications & Performance
These are the main technical specifications:
Parameter Value
Airflow (max / high speed) 350 m³/h (≈ 100 L/s)
Temperature Heat Recovery Efficiency ~ 75 % (typical / at design conditions)
Enthalpy / Heat + Moisture Recovery Efficiency (Heating Mode) ~ 69 % (heating mode)
Enthalpy / Recovery Efficiency (Cooling Mode) ~ 66 % (cooling mode)
Noise Level ~ 28 dB(A) (low speed)
Power Supply 220 V / Single-phase / 50 Hz
Input Power 112 W (approximately)
Weight ~ 37 kg
Dimensions (W × H × D) 804 × 270 × 882 mm (approximate)
Duct Connection Size 150 mm round duct (typical)
Features 10-speed DC motor fans, automatic bypass, defrost, CO₂ sensor option, filter alarm, external heater control, weekly timer, Modbus integration etc.

✨ Highlights & Notes
Heat recovery: The unit recovers a high proportion of heat from exhaust air, reducing heating load. The 75 % temperature recovery efficiency is a typical value under design conditions.
Moisture recovery: The enthalpy (heat + moisture) recovery portion helps maintain humidity control when conditions allow (especially beneficial in cooling mode).
Quiet operation: 28 dB(A) in low speed mode makes it suitable for installation in quieter settings like apartments or bedrooms.
Controls & connectivity: Full features such as bypass, defrost, filter alarms, CO₂ control (optional), Modbus / BMS integration, weekly timer.
Compact build & installation: The unit can be integrated into ceiling or overhead spaces; duct connections standardized.
Power and efficiency balance: With input ~112 W for 350 m³/h, it offers good efficiency relative to the ventilation volume.

📐 Estimated Application / Room Sizing
A practical way to estimate what kind of space this unit can ventilate:
With 350 m³/h maximum capacity, assuming a standard ceiling height of 2.5 m:
Air volume handled = 350 / 2.5 = 140 m² per hour (if one air change per hour)
For more comfortable ventilation (e.g., 2–3 air changes per hour), usable area might fall into ~ 45-70 m² range depending on usage, occupancy, airtightness, etc.
In one listing, it was recommended for areas ~ 41–55 m².
So for many typical homes or office rooms, this unit falls into the mid-size recuperator bracket.