Installation Instructions; Control Cabinet Installation; Power Loss; Unit Size 13 - Keb Combivert F1 Betriebsanleitung

Installation Instructions

Control Cabinet Installation

GB
Control Cabinet Surface
Self-Ventilation
E 8
Direction of cooling fins
KEB
COMBIVERT/
COMBIDRIVE
Cool air inlet
Calculation of control cabinet surface:
P
V
A = [m
∆T • K
A = Control cabinet surface
∆T = Temperature difference
(Standard value = 20 K)
K = Heat transfer coefficient
(Standard value = 5
P = Power loss (see table below page E9)
V
V = Air flow rate of fan
Refer to the catalogs of the control cabinet manufacturers for more detailed
information.

Unit size 13...23

At a heat sink temperature of approx. 55 °C the indoor fan and
the heat sink fan of the KEB COMBIVERT/COMBIDIRVE are
activated automatically. When the heat sink temperature has
dropped below 50°C the fans are switched off!
Unit size 24...28 Independent from the heat sink or room temperature, both
fans are constantly in operation.
Warm air outlet
Rate of air flow with fan cooling:
2
]
[m 2 ]
[K]
W
[ ]
2
m • K
W
)
m 2 • K
150
KEB
COMBIVERT /
COMBIDRIVE
100
Minimum distances
3.1 • P
V
V = [m 3 /h]
∆T