Carrier 30PA, Инструкции по установке, эксплуатации и обслуживанию, Страница: 20 / 36

Ductable air-cooled scroll
chillers and heat pumps
20
The installer must prepare the other accessories for completion of the
hydraulic circuit: thermal buffer tank, air bleeder valve (except models
160HEE and 180HEE), regulation, cut-off and draining valves, etc.
Both at the inlet and the outlet of the unit, install thermal pressure
gauges which enable supervising the operation of the installation,
or at least plan the installation of these.
Note: optionally, a kit can be supplied with :
- Cut-off and water regulation valves.
- Flexible hydraulic connections of 500 mm.
Circulation pumps available for 30PAC/PHC
1 3 4 5 7 8 9 10 15
10
20
30
40
Available pressure (m.w.c.)
Flow (m
3
/h)
3.171
3.172
3.173
2 6
3.229
3.174
3.175
Note: These pumps can operate with glycol water (mono-ethylene
glycol), although with a reduction of the available pressure (due to the
fl
ow variation with glycol water). The correction coef
fi
cients for operation
with glycol water can be referred to in the technical brochure for these
units (No. 10056).
30PAC/PHC
Versión STD
90STD 100STD 120STD 160STD 180STD
Number
of pump
Standard 3.171 3.172 3.172 3.173 3.174
High-pressure (opt.) 3.173 3.173 3.174 3.174 3.175
Low-pressure (opt.) -- 3.171 3.171 3.171 3.229
30PAC/PHC
Versión HEE
90HEE 100HEE 120HEE 160HEE180HEE
Number
of pump
Standard
3.171 3.172 3.172 3.173 3.174
High-pressure (opt.) 3.173 3.173 3.174 3.174 3.175
Low-pressure (opt.) -- 3.171 3.171
--
3.229
Number of pump 3.171 3.172 3.173 3.174 3.175 3.229
Motor output (kW) 0,37 0,55 0,75 0,9 1,5 0,55
Maximum abs. current (A) 1,4 2,0 2,3 2,7 4,0 2,0
Minimum water
fl
ow (m
3
/h) 1,2 1,2 1,2 3,0 4,8 3,0
Maximum pressure (m.w.c.) 20,7 28,0 30,3 29,5 31,6 20,6
Maximum water
fl
ow (m
3
/h) 5,4 4,8 6,6 9,6 15,0 9,6
Minimum pressure (m.w.c.) 15,0 20,5 19,5 19,5 23,0 13,7
CONNECT SIPHON
METTRE SIPHON
PONER SIFON
V220014
Siphon installation norms
All water drain tubes must be provided with a siphon to avoid bad smell
and water spills.
• Pan in underpressure:
Water must be suctioned from the pan because of the depression
with respect to the motorfan assembly.
Perform the siphon assembly as per the scheme of the attached
starting diagram:
- For the correct siphon design, the "A" height must be at least twice
that of the underpressure (mm.w.c) where the condensate pan is
placed.
- Check that the condensate outlet is not clogged.
- The drain piping must be slightly sloped to ease circulation towards
the drain.
- The original diameter of the piping must be respected. No reduction
can be made.
- With outdoor temperatures which are lower than 0°C, the necessary
precautions must be taken to prevent the water in the drain ducts
from freezing.
A
Condensates pan
in depression
A
Siphon drain
Slight slope
5/1000
To drainage
Check the watertightness of the connection.
Attention
: With low outdoor temperatures, the electrical heater-based
anti-freeze protection option for the pan is recommended. Mandatory
when outdoor temperatures are below 3°C.
Condensate drain connection
In 30PA/PH/PAC/PHC units, the condensate drain pan includes a 3/4”
M bronze, bleeding trunk for draining condensates.
• Pan in overpressure:
It is installed to avoid the access through the drain piping of bad
smells.