Installation and Maintenance
Installation and Maintenance
13
Fig 6.2
The static pressure can be freely adjusted by using specific wire remote controller.
6.2 Change of Static Pressure
Model
The Range
of
Static
Pressure
Function
Code
Set
1.0HP (9K)/
1.5HP (12K)/
2.0HP (18K)
0-0.20 in. H O
2
(0-50Pa)
0-50 function code value equals
static pressure value,
more than 50 is 0.20 in. H O (50Pa),
2
[default: 0 (0.18 in. H O or 45Pa)]
2
3.0HP(24K)
0-0.40 in. H O
2
(0-100Pa)
0-100 function code value equals
static pressure value,
more than 100 is 0.40 in. H O (100Pa),
2
[default: 0 (0.18 in. H O or 45Pa)]
2
4.0HP(36K)
0-0.56 in. H O
2
(0-140Pa)
0-140 function code value equals
static pressure value,
more than 140 is 0.56 in. H O (140Pa),
2
[default: 0 (0.23 in. H O or 57Pa)]
2
Electrical Wiring Diagram
Outdoor unit
Indoor unit
Terminal
Terminal
Power connecting cord
SI
SI
L
L
N
N
Note
:
Since there may be differences in some model’s terminal blocks, wiring connection should be done according to letters on the
terminal block. Please disregard numbers in this case.
HCWA21NEHH
Parameter code
Function code
Function revise indicator
ALARM
Static Pressure Setting (
HCWA21NEHH
):
Press and hold both “ ” and “ ” buttons for 3 seconds, symbol “ ” and parameter code
start blinking at the same time.
Press “ / ” button to adjust parameter number until “
, and press “ ” button to
17 is displayed
”
enter system parameter adaption state, symbol “ ” stops blinking.
Select desired parameter code 10 by pressing “ / ” button, and press “ ” button to confirm.
Select desired function code to rewrite the parameter values by pressing “ /
”
button, and press
“ button to confirm.
”
Press “ ” button to quit.
1
2
3
4
5
If you still have any trouble, please contact local service center of our company for further
information.
ALARM
ALARM
