Unit Installation - Hitachi DHWT200S-2.5H1E Betriebshandbuch

1 Unit installation

11
11 UNIT INSTALLATION
Transport the products as close as possible to the installation location before unpacking.
Check the contents of the package:
- DHWT Model
- Installation and Operation Manual & Documents
11.1 SELECTION PROCEDURE FOR DHWT UNITS
C A U T I O N
• DHWT appliance is intended to be installed in an indoor
place.
• DHWT installation must be done by professional insta-
llers.
• Install the DHWT with sufficient clearance around it for
operation and maintenance as shown in the following fi-
gures.
• Install the DHWT where good ventilation is available. Do
not install the DHWT where there is a high level of oil
mist, salty air or sulphurous atmosphere.
11.2 WORKING SPACE
- Check that DHWT are installed vertically.
- For cleaning, use no flammable and no toxic cleaning liquid. The use of flammable agents should cause explosion or fire.
- Cleaning liquid shall be collected after cleaning.
- Pay attention do not trap cables when closing the electrical box cover. It could cause a electric shock.
11.3 WATER SUPPLY CONTROL WARRANTY
Well water or river water could, in most cases, contain suspended
solid matter, organic matter, and scales in big quantities. There-
fore, the water should be subjected to a filtration process or to a
softener treatment by using chemical products before it's applica-
tion as a DHWT water.
It is also necessary to analyse the quality of the water by checking
pH, electrical conductivity and others.The following is the recom-
mended standard water quality:
Item
Chlorine Ion (mg C1¯/1)
Electrical Condutivity (µs/cm)
Total Hardness (mg CaCO3/1)
15 PMML0198A-rev.1 - 04/2011
DHWT Supply Water
Less than 150
100~2000
60~150
• Working with no sufficient ventilation, in an enclosed
space, should cause oxygen deficiency. Toxic gas should
be produced when cleaning agent is heated to high tem-
perature by, e.g., being exposed to fire.
• Do not install DHWT near any flammable substance.
• When installing some device next to DHWT, keep clearan-
ce between DHWT and any other obstacle of more than
500mm.
N O T E
Water range will be according s/UNE 112076:2004 IN.