Electrical specifications of the RLT Flat air handling units and heat registers
Model | Performance details | RCD details | |||
|---|---|---|---|---|---|
Standard unit | PH | EH | Rec. type | Recorded current | |
[kW] | [kW] | [kW] | [mA] | ||
M4004H | 0.27 | 1.5 | 1.5 | B or B+ | 30 |
M4007H | 0.44 | 2.25 | 2.25 | B or B+ | 30 |
M4012H | 0.87 | 4.25 | 4.25 | B or B+ | 30 |
M4020H | 1.1 | 6.75 | 6.75 | B or B+ | 300 |
M4027H | 1.6 | 9 | 9 | B or B+ | 300 |
Recommended fuses for mains connection: D-type "slow"; D-10,000 A – AC3 | |||||
Model | Cable cross-sections | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Standard unit | Unit+PH & Unit+EH | Unit+PH+EH | |||||||
Maximum current | Rec. cable | Rec. fuse | Maximum current | Rec. cable | Rec. fuse | Maximum current | Rec. cable | Rec. fuse | |
[A] | [mm2] | [A] | [A] | [mm2] | [A] | [A] | [mm2] | [A] | |
M4004H | 2.0 | 5x2.5 | 10 | 4.43 | 5x2.5 | 10 | 6.83 | 5x2.5 | 10 |
M4007H | 3.1 | 5x2.5 | 10 | 6.73 | 5x2.5 | 10 | 10.33 | 5x2.5 | 16 |
M4012H | 5.4 | 5x2.5 | 10 | 12.23 | 5x2.5 | 16 | 19.02 | 5x4 | 20 |
M4020H | 5.0 | 5x2.5 | 10 | 15.83 | 5x2.5 | 20 | 26.62 | 5x4 | 32 |
M4027H | 7.0 | 5x2.5 | 10 | 21.42 | 5x4 | 32 | 35.82 | 5x6 | 40 |
The cable cross-section calculations are based on a maximum cable length of 50 m and a voltage drop of 10 % of the supply voltage. For other installations, please contact Maico! | |||||||||
Earthing of the RLT air handling unit is absolutely essential!
The motor is "intrinsically safe" against overload. It is therefore not necessary to install electrical overload protection.
The unit must not be switched on and off more often than at intervals of at least 5 minutes.
Single-phase – three-phase changeover (only for RLT Flat WITHOUT electric heating register (PH/EH)
All units are manufactured at the factory with three-phase connections. If single-phase operation is required, please proceed according to the specified instructions.
Single-phase operation only applies to the RLT Flat WITHOUT electric heating register!
All changes for the three-phase/single-phase conversion must be made on the power supply side of the circuit-breaker.
No changes may be made on the unit side!
The single-phase option is not suitable for units equipped with electric heat registers!