RHOSS TCHEY 115 Instrucciones De Uso página 35

II.5 WATER CONNECTIONS
II.5.1 CONNECTION TO THE SYSTEM
IMPORTANT !
The layout of the h yd raulic system and connection
of the system to the unit must be carried out in
conformity with local and national rules in force.
IMPORTANT !
It is advisable to install inter cept valves that isolate
the unit from the rest of the system. It is also
advisable to install elastic connection joints.
Mesh filters with a squar e section (longest sid e =
0.8 m m), of a suitable siz e and pr essure drop for the
system, must b e inst alled . Clean the filter from time
to time.
Once the connec tions to the unit ar e made, c hec k that none of the
pipes l eak, and bl eed the air from the s ystem. The water flow rate
through the heat exchanger must not dr op below the value
corresponding with the temperature c hange of 8°C ( with both
compressors on where present or 1 c ompressor).
in the cas e of models without pump, he pump mus t be installed with the
pressing deli ver y towards the water input to the machine.
It is recommended to mount the air bl eed val ve.
II.5.2 HYDRAULIC CIRCUI T CONTENT
II.5.2.1 Minimum contents of w ater circuit
The el ectronic c ontrol equipped with the AdaptiveFunction Plus makes
it possibl e to reduce the amount of water i n the s ystem. For proper
operation of the unit, a minimum amount of water must be ensured in
the water s ystem.
Model
Minimum content with
adapti vefunc tion plus
Model
Minimum content with
adapti vefunc tion plus
Refer to the maxi mum power that c an be envisioned (als o in heating
mode if THHEY). A s pecific c apacity of 2l/kW. is considered as
indicated in the documentation If the amount of water i n the s ystem is
less than the indicated amount, it is nec essar y to install an additional
storage tank.
II.5.2.2 Maximum contents of w ater circuit
The P1/P2 units are equi pped with an expansi on tank and s afety val ve
that limits the maxi mum amount of water contai ned in the s ystem.
Maximum contents
Water
Mixture with ethylene glycol at 10%
Mixture with ethylene glycol at 20%
Mixture with ethylene glycol at 30%
Maximum contents
Water
Mixture with ethylene glycol at 10%
Mixture with ethylene glycol at 20%
Mixture with ethylene glycol at 30%
If the water content exceeds the values indicated, an additional
expansion tank must be added.
Expansion tank
Capacity
Pre-loading
Expansion tank maximum press ure
Calibration
115 118 122
l 31,2 37,0 45,7
125 230 240
l 52,7 61,2 83,8
115 118 122
l
243 243 243
l
212 212 212
l
196 196 196
l
182 182 182
125 230 240
l
243 243 243
l
212 212 212
l
196 196 196
l
182 182 182
115÷240
l 7
barg 1
barg 3
barg 3
SECTION II: INST ALL ATION AND MAINTEN ANCE
Model
Expansion tank
Safety val ve calibration
Maxi mum admissibl e press ure
Water connec tion dimensions
Load connection di mensions (whole)
Model
Expansion tank
Safety val ve calibration
Maxi mum admissibl e press ure
Water connec tion dimensions
Load connection di mensions (whole)
II.5.3 PROTECTION AGAINST CORROSION
Do not us e corrosi ve water c ontaining deposits or debris in the
hydraulic circuits who insist on unity; below is the corrosion range:
pH
SO4--
HCO3-/SO4--
Total hardness
CI-
PO43-
NH3
Fe+++
Mn++
CO
2
H S
2
Temperature
Oxygen content
Alkalinity (HCO
Electrical Conducti vity
Nitrate (NO
3
The us e of demineralized water contai ning chlorine or requires the
adoption of specific exc hangers (indicated in the documentation where
availabl e). If it is reas onabl y certain water quality within the tabl e above,
or you are uns ure about the pres ence of different materials that could
cause over time a gradual c orrosion of the heat exchanger, it is
necess ary to insert an i nter mediate heat exchanger ins pecti on and in
material suitable to withstand these c omponents or a heat exc hanger
sacrificial. In water/water units, pit and aqueduct water mus t be us ed in
compliance with the l aws in force in the country where the machi nes are
installed. Regarding the well water, if there is no ris k of corrosion and
do not want to use an intermediate heat exc hanger is nec essar y to
insert upstream of the exchanger a self-cleaning filter with a mesh of 80
microns.
II.5.3.1 Recommended installation
2
1
Cock
2
Water filter (KFA access ory)
3
Primar y s ystem water outlet
4
Primar y s ystem water inl et
5
Rejection devic e outlet
6
Rejection devic e inlet
35
Hydr aulic data
115
l 7
kPa 300
kPa 300
Ø
Ø
125
l 7
kPa 300
kPa 300
Ø
Ø
7.5 ÷ 9.0
< 70 ppm
> 1.0 ppm
4.0 ÷ 8.5 dH
< 50 ppm
< 2.0 ppm
< 0.5 ppm
< 0.2 ppm
< 0.05 ppm
< 5 ppm
< 50 ppb
< 65
< 0.1 ppm
) 70 ÷ 300 ppm
3
10 ÷ 500 µS/cm
) < 100 ppm
2
118 122
7 7
300 300
300 300
1-½"GM
½"GF
230 240
7 7
300 300
300 300
1-½"GM
½"GF
°C