Limits To The Length And Height Difference Of Coolant Pipes - Ferroli MIDAS PC10 Manual Del Instalador

Exterior unit high and interior unit low.
The maximum difference in height between the interior unit
and exterior unit must not exceed the value given in the
table. In this case, traps (6) must be installed for every
three meters of height difference. The purpose of these
traps is to allow oil to return to the compressor. The con-
nection pipes must be insulated.
Key:
1. Exterior unit
2. Interior unit
3. Pipe on gas side
4. Pipe on fluid side
5. Treated air duct
6. Trap

LIMITS TO THE LENGTH AND HEIGHT DIFFERENCE OF COOLANT PIPES

The length of the coolant pipes between the interior and exterior units must be as short as possible and is in any case
limited by compliance with the maximum height difference values between the units.
Diminution of the difference in height between the units (H1,H2) and the pipe lengths (L) will limit the load losses, con-
sequently increasing the overall efficiency of the machine.
Comply with the limits given in the following tables.
SPECIFICATIONS
LIQUID
DIAMETER
MAXIMUM LENGTH
Exterior unit low (H1)
MAXIMUM
DIFF.IN
HEIGHT
Exterior unit high (H2)
Maximum pipe length with standard
charge
Type of coolant
Quantity of additional cooland per
meter
Contact our technical department for the required modifications if the units must operate beyond the speci-
fications given above.
INSTALLATION
MODEL
UM 12000
"
1/4
"
1/2
GAS
m 15
m
m
m
g/m 30
18000 24000
1/4 3/8
1/2 5/8
15 20
7 9 11
5 7 9
5 5 7
30 50
30000 30000-3 36000 36000-3 48000-3
3/8 3/8 1/2
5/8 5/8 3/4
20 20 25
11 11 12
9 9 10
7 7 10
R410A
50 50 100
1/2 1/2
3/4 3/4
25 25
12 12
10 10
10 10
100 100
17