Air-To-Air Heat Exchangers
Product Description
häwa air-to-air heat exchangers with a highly conductive aluminum core grid system have two separate closed air circuits, each of them equipped with one fan and sealed per IP 54. This assures that outside air does not penetrate into the interior of the cabinet.
The fan of the internal circuit draws hot air from the cabinet and blows it down along the heat exchanger, where it is cooled via the cooling fins and forced back into the interior of the cabinet. The external circuit fan draws in cool ambient air from the outside, blows it through the fins, where the heat is absorbed by the air, which is then forced back outside.
For external, internal, roof-mounted or any other mounting position, Mini heat exchangers partial mounting
Separate connection of external and internal fans
Simple cleaning of the exchanger core while mounted. Simple removal of exchanger core for wet cleaning (except for the Mini-heat exchanger)
Technical Data
- Order No.: 3114-0220-16-07
- Nominal voltage: 230 V AC
- Frequency: FREQUENZ1 : 50 Hz / 60 Hz
- Protection type: IP54, internal fan IP22
- Dissipated heat at temperature difference 25K: 220 W
- Spec. heating capacity: 8.8 W/K
- Unimpeded air flow cold/warm: Each 110 m³/h
- Mounting type: external/internal installation
- Power supply: 2 power cords
- Power consumption at 50Hz: 28 W
- Power consumption at 60Hz: 22 W
- Nominal current at 50Hz: 0,2 A
- Nominal current at 60Hz: 0,18 A
- Fuse: 6 AT
- Noise level at 50Hz: 50 dB(A)
- Approvals: CE
- Weight: 4.8 kg
- Dimensions (WxHxD): widht : 160 mm height : 325 mm depth : 120 mm
- Surface finish: Powder coating RAL 7035, texture finish
- Material Exchange core: Aluminum
- Material housing: Sheet steel 1 mm; 19 ga
- TYP: Mini-Mini 220
Notice
- Versions with special voltages or with stainless steel enclosures are available upon request.
Scope of Delivery
- Heat exchanger with power cord(s)
- Rubber seals
- Mounting hardware
Accessories

Small Compact Thermostat with Thumbwheel Setting Dial
Control system | Closed con. |
Temperature range from | + 0 °C |
Temperature range to | + 60 °C |

Fix-Thermostat FTS
Control system | Closed con. |
switch temperatur | + 35 °C |
shutdown temperature | + 25 °C |