Nortec ME Control - Manual (Page 73)

73 Product specifications
9 Product specifications
9.1 Technical data
Nortec ME Control
Supply voltage control unit 100...240 VAC/50...60 Hz
Supply voltage circulation pumps 24 Vdc/50...60 Hz
Power consumption 1) < 278 W (5 stages, no options fitted)
Control signals 0...5 VDC
1...5 VDC
0..10 VDC
2...10 VDC
0...16 VDC
3.2...16 VDC
0..20 mA
4..20 mA
On/Off (via volt-free contact)
Control accuracy Control accuracy depends on air conditions, control
distance, water quality and on the number of On/Off
cycles
Max. admissible matric face velocity 3.5 m/s (689 fpm)
4.5 m/s (886 fpm) with droplet separator
Water supply ø15mm (0.625") compression fitting
Water drain (outside diameter) ø 54 mm (2.125") - Tank /
ø 28 mm (1.125") - Hydraulic module
Admissible water supply pressure 2...5 bar (29...72.5 psi)
Admissible water temperature 5...20 °C (41...68 °F)
Water quality Tap water, softened or fully demineralised water with a
max. of 100 cfu/ml
Admissible operating air temperature 10...60 °C (50...140 °F)
Admissible ambient temperature (Control unit) 1...40 °C (33.8...104 °F)
Admissible ambient humidity (Control unit) max. 75 %rh
Degree of protection of Control unit IP21
Degree of protection of Hydraulic module IP42
Conformity CE marking
Fire classification of evaporative media glass fibre media: A2-S2,-D0 (UL Class 1)
polyester media: DIN EN 53438 Class F1
1) Power consumption depending on the number of vertical evaporative cassettes banks and the options fitted