Carel heaterSteam UR Series, User Manual

Page: 12 / 72

12
ENG
“heaterSteam” +0300075EN - rel. 1.2 - 29.09.2015
2. HYDRAULIC CONNECTIONS
Attention: before making the hydraulic connections disconnect
the humidifi er from the power supply.
Models UR002..UR013 Models UR020...UR080
1
1
3
3
4
4 7
5
6
6
2
2
4
5
Fig. 2.a
HYDRAULIC CONNECTIONS:
1. install a manual valve upstream (to cut off the water supply);
2. connect the humidifi er to the water supply. For UR002...UR013 models,
use a fl exible pipe 3/4’’G connection. For UR020...UR080 models
connect the fl exible pipe with the backfl ow prevention valve
(supplid - code FWHDCV0003), to avoid the water inside the
humidifi er from making contact with the one in the mains;
3.
install a mechanical fi lter to retain any solid impurities (connect
before the inlet connection of the humidifi er.
4.
connect a section of pipe for draining (resistant to temperatures of
100 ° C (212 ° F)) and with a minimum internal diameter of 40 mm
(1.6 in) for models UR002-UR013 and 50 mm (2 in), for models UR020
UR080;
5.
provide an open drain using a funnel to interrupt drain continuity;
6. connect a trap to prevent the return of odors;
7. for models UR020...UR080: connect a drain pipe from the drain pan
at the bottom of the humidifi er (this can run into the funnel used for
draining).
8. for drain tempering versions, water temperature will be 60 °C (140 deg
F), so long as the temperature of the feed water is equal to or less than
25 °C (77 deg F) guaranteed.
Caution:
•
once the installation is complete, fl ush the supply pipe for about
30 minutes by carrying water directly in the drain and without
introducing it into the humidifi er. This will eliminate any waste or
processing residues that could clog the inlet valve and/or cause foam
when boiling water;
•
the drain pipe must run vertically downwards at least 30 cm (12 in)
(fi gure) to prevent the return of steam.
Set up for hydraulic connections:
Models UR002..UR013 Models UR020...UR080
B
A
A
D
B
C
Fig. 2.b Fig. 2.c
Key:
A Supply water inlet
B Drain water outlet
C bottom tank drain water outlet (only for models UR020-UR080)
D Drain tempering inlet (see explanation on chapter 12)