YORK VRF Air-Conditioner IOM
7
Fig. 10 Duct Connection
z
Wrap both the inlet-side and outlet-side flange and
the duct connection area with aluminium tape for
something similar to prevent air escaping.
z
Please attach an air filter inside the air passage on
the inlet-side. (Use an air filter which duct
collection efficiency (in a gravimetric technique) is
higher than 50%)
z
Be sure to insulate the duct to prevent condensate
water from forming. (Material: glass wool or
polyethylene foam, above 25mm thickness)
z
Duct pressure drop of YDCC06~18/YDCC018~053
indoor unit models cannot be higher than 30 Pa;
YDCC25~45/YDCC066~115 indoor unit models
cannot be higher than 80 Pa;
YDCC50~60/YDCC140~175 indoor unit models
cannot be higher than 100 Pa.
z
The air outlet cannot be too high and be positioned
at the place where it directly blows the people for a
long period.
z
To reduce vibration and noise, it is better to use
flexible connection to connect the air inlet and
outlet duct with indoor unit.
9
SET THE ESP
z
YDCC06~18/YDCC018~053 indoor unit models’ ESP
(External Static Pressure) can be divided as 3 types
– 0 Pa, 15 Pa and 30 Pa;
YDCC25-45/YDCC066-115 indoor unit models’ ESP
(External Static Pressure) can be divided as 3 types
– 15 Pa, 40 Pa and 100 Pa;
YDCC50~60/YDCC140~175 indoor unit models’ ESP
(External Static Pressure) can be divided as 3 types
– 15 Pa, 50 Pa and 100 Pa;
Out factory state, YDCC indoor unit ESP is 15 Pa
(default value). User can adjust the ESP according
to the actual pressure drop of the air duct.
z
Indoor unit ESP can be adjusted by changing the
connection site of fan wiring in the control board.
For detail setting method of different indoor ESP,
please refer to the wiring diagram attached to the
control box lid.
10
ELECTRIC WIRING WORK
10.1 General introduction
z
Shut off the power before doing any work.
z
All field supplied parts and materials and electric
works must conform to local laws.
z
All wiring works should be performed by specially
qualified electricians.
z
Install a wiring interrupter or ground-fault circuit
interrupter for the power supply wiring.
z
Be
z
Be sure the air-conditioner is well grounded. Never
connect the ground line with gas pipe, water pipe,
lightning conductor or telephone lines.
z
Do not turn on the power sully unless all the work
has been done.
z
Wiring of different thickness or diameter cannot be
connected to one power supply wiring terminal.
z
For wiring, please use the designated power supply
wiring and connect firmly, then secure to prevent
external pressure being exerted on the terminal
board.
z
The terminal screw should not be tightened too
hard or too loose. Too hard may damage the
terminal board and too loose may result in bad
connection and danger due to terminal board
overheating.
10.2 Electrical parameters
Indoor unit power supply and Max operation current
Indoor Unit Model
Power Supply
Max Operation Current(A)
BTU type
kW type
H0 type
(or Cooling Only)
H2 type
H4 type
YDCC06
̚
09 YDCC018
̚
025
220V
̚
50Hz
0.26 4.76 -
YDCC12
̚
25 YDCC034
̚
066
0.85 8.15 9.85
YDCC30
̚
45 YDCC078
̚
115
1.31 10.31 15.81
YDCC50 YDCC140
2.8
-
-
YDCC60 YDCC175
3.18
-
-
NO
TE
CAUTION
