Installation Preparations; Transport; Requirements At The Ew-K; Installation Site - Maico EW-S Montage- Und Betriebsanleitung

9. Installation preparations

9.1 Transport

● Adhere to the valid safety and accident
prevention regulations for transportation.

9.2 Requirements at the EW-K 225

installation site

● Rooms with an ambient temperature from
+10... +40 °C, e.g. in the cellar or in the loft
are permissible.
● A fixed installation of the EW-K 225 on the
wall or ceiling is prescribed (use fixing
brackets).
● Permitted installation position with the
condensation run-off at the bottom.
● Once it has been lined up horizontally, the
EW-K 225 must be screwed into place
using the supplied mounting material.
● Siphon in the condensation drain tube and
sufficient incline for the condensation run-
off. Condensation drain with drain tap.
● Working space for maintenance work such
as filter change: Allow for at least 70 cm
space for removing the housing cover.
10. Installation (Specialist
installer)

10.1 Procedure

 Install the ground collectors. See Planning
documents in Chapter 8.
 Bring the EW-K 225 brine register to the
installation site.
 Connect the condensation run-off and fill
the siphon up with water.
 Connect the DN 224 ventilation channels
and install protective grilles at the external
connections.
 Install the EW-PG pump assembly.
 Connect the ground connector ducts
(pressure ducts EW-D, forward and return
flow) with the pump assembly.
 Connect the pump assembly to the
EW-K 225.
 Fill up the ducting system a 25 % glycol-
water mix. Bleed the air from the system.
 Entlüften Sie die Anlage.
 Carry out a pressure test on the ducting
system, → Chapter 8.7.
 Install the EW-S controller and connect it to
the pump. The EW-S controller should be
installed at a suitable location close to the
unit (no splash water protection).
 Install the two PT 1000 temperature
sensors before and after the EW-K 225, for
recording the air temperature.
 Connect the mains power.
 Start-up the EW-System.
 Set up the basic settings in the EW-S
controller Operator menu. Carry out a
system test in the Service menu (P5...P15).
 Give the user instructions about using the
system.
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