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Operation and Maintenance
Envistar Top 04-21
DSET.220501.07.en
Continuous product development may give rise to specification changes without notice.
Ziehl EC
3×400 V 2,40 / 2,50 / 2,90 kW
fan impeller 040 / 045
Sizes 16 och 21
Rotor operation (Code TXRD)
OJ Electronics
00038
+
–
2: 0-10V
1: GND
10: NO
9: C
8: NC
L
N
PE
1
2
3
1. Supply 1x230V
~
50Hz
2. Control
3. Alarm (closed in case of alarm)
4.2 MK – Fans and heat exchangers electrically connected to terminal
Code MK - units supplied without control equipment but with fans and heat ex-
changers connected electrically to terminals.
Connections to terminal blocks are located on each unit section.
For wiring instructions and recommended fuses, refer to Order Unique Docu-
mentation at
(Terminal Connection and Technical Data).
Safety switch
A safety switch must be fitted and wired on each power supply.
4.3 HS, US - Without control and without electrical connection
• Code HS - for units without control equipment and without electrical con-
nection, control diagrams are available for the heat exchanger and cooling
unit under order unique documentation at
, for other
connection instructions, see below.
• Code HS - for units without control equipment and without electrical con-
nection, control diagrams are available for the cooling unit under order uni-
que documentation at
, for other connection instructions,
see below.
Recommended fuse protection refers to fuses with type C characteristics.
Safety switch
A safety switch must be fitted and wired on each power supply.
Fans (code ELFF)
Ziehl EC
1×230 V 0.50 / 0.78 kW
fan impeller 025 / 028 / 031
Sizes 04, 06, 09 and 10
