Eco Operation - Carrier 42NQV050M Service Manual

Item
When pressing [ECO] button on the remote controller, a
9. ECO
Economic operation is performed.
operation
<Cooling operation>
This function operates the air conditioner with the difference
between the set and the room temperature as shown in the
following figure.
TA
+6.5
+6.0
+5.5
+5.0
+4.5
+4.0
+3.5
+3.0
+2.5
+2.0
+1.5
+1.0
+0.5
TSC
-0.5
-1.0
-2.0
1H
<Heating operation>
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–4.0
–5.0
− 5.5
–11.0
− 11.5
Operation flow and applicable data, etc.
2H 3H
4H
* 12 (DRY max - COOL min) /6 x 5 + COOL min
* 11 (DRY max - COOL min) /6 x 4 + COOL min
* 10 (DRY max - COOL min) /6 x 3 + COOL min
* 9 (DRY max - COOL min) /6 x 2 + COOL min
* 8 (DRY max - COOL min) /6 x 1 + COOL min
Hz
42NQV050M
10
Cool min
49
DRY max
30 minutes
A
B
C
Hz
a
c
Zone Frequency
FAN
Dry Max
12
11
*12
10 *11
9 *10
8 *9
7 *8
6
5
4
3
2
Min
1
Hz
OFF
Time
42NQV060M
10
50
→ Time Compressor
speed
0Hz
A
A zone
aHz
B zone
B
a to cHz
C zone
C
cHz
42NQV050M 42NQV060M
10 10
68 72
– 34 –
Description
<Cooling operation>
1) The control target temperature
increase 0.5ºC per hour up to 2ºC
starting from the set temperature
when ECONO has been received.
2) The indoor fan speed is depend
on presetting and can change
every speed after setting ECO
operation.
3) The compressor speed is
controlled as shown in the left
figure.
<Heating operation>
1) Setting the compressor speed to
Max. aHz, the temperature zone
in which the operation can be
performed with Max. cHz is
gradually widened after 30
minutes passed when starting

ECO operation.

2) The indoor fan speed is depend
on presetting and can change
every speed after setting ECO
operation.