Mitsubishi Electric HP120TNU-A Service Handbook page 129

R410a
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[5-1 Dipswitch Functions and Factory Settings ]
Switch
SW4
1-10
SW6-10:
1:ON, 0:OFF
OFF
No.769
1000000011
No.817
1000110011
No.818
0100110011
No.832
0000001011
No.848
0000101011
No.891
1110010111
No.896
0000000111
No.897
1000000111
No.900
0010000111
No.912
0000100111
No.913
1000100111
No.915
1100100111
SW4
1-10
[0:OFF,
No.916
0010100111
1:ON]
(Note 1)
SW6-10:ON
No.918
0110100111
No.921
1001100111
No.922
0101100111
No.932
0010010111
No.933
1010010111
No.934
0110010111
No.935
1110010111
No.974
0111001111
No.982
0110101111
No.997
0011001111
No.1006
0110101111
4
- chapter 5
Function according to switch setting
Function
OFF (LED3 Unlit)
Refer to the following page(s). [10 LED Sta-
Self-diagnosis/operation
tus Indicators on the Outdoor Unit Circuit
monitor
Board]
Test run mode: ON/OFF
Stops all ICs
Starts up drive recorder
Enabled
Data collection during an
Disabled
error
Cumulative compressor
Retained
operation time deletion
Continuous heating cycle
Disabled
function
Smooth auto-shift start up
Disabled
mode
OC
Retained (IC/OC)
Clearance of error
history SW
OS
Retained (OS)
High sensible heat opera-
Depends on the combined setting with No.
tion setting
900 (Note 8)
High sensible heat opera-
Depends on the combined setting with No.
tion setting
897 (Note 8)
Pump down function
Normal control
Forced defrost (Note 3)
Normal control
Defrost start temperature
-10°C [14°F]
(Note 3)
Defrost end temperature
7°C [45°F]
(Note 3)
Changes the defrost timer
50 minutes
setting (Note 3)
Temperature/pressure unit
2
°C/kgf/cm
selection
Refrigerant amount adjust-
Normal control
ment
Heating backup
Disabled
Effective only when
TH7 5 is true or the
Snow sensor setting
snow sensor contact
input is on.
Continuous fan op-
Snow sensor setting
eration (FAN=50%)
High heating power (at low
Effective
outside temperature)
Panel heater output
Enabled
Target evaporation tem-
Refer to Note 4).
perature setting
Multiple-stage low-noise
Disabled
setting
Switch setting timing
ON (LED3 Lit)
Anytime after power on
Sends a test-run sig-
Anytime after power on
nal to all IC
Disabled
Anytime after power on
Enabled
Anytime after power on
Cleared
Anytime after power on (OFF ON)
After being energized and while the com-
Enabled
pressor is stopped
After being energized and while the com-
Enabled
pressor is stopped
Deleted (IC/OC)
Anytime after power on (OFF ON)
Deleted (OS)
Before power on
Before power on
Pump down opera-
After being energized and while the com-
tion
pressor is stopped
10 minutes after the completion of de-
Forced defrost starts
frost operation (OFF ON) or 10 minutes
after compressor start-up (OFF ON)
-5°C [23°F]
Anytime after power on
12°C [54°F]
Anytime after power on
90 minutes
Anytime after power on (OFF ON)
°F/psi
Anytime after power on
Anytime after power on (except during
Refrigerant amount
initial startup/becomes ineffective 90
adjust mode
minutes after compressor started up.)
Enabled
Anytime after power on
Effective when TH7
Anytime after power on
5 is true
Intermittent fan op-
eration (100% for 5
Anytime after power on
minutes
0% for 30
minutes)
Ineffective
Anytime after power on
After being energized and while the com-
Disabled
pressor is stopped
Anytime after power on
After being energized and while the com-
pressor is stopped
After being energized and while the com-
pressor is stopped
Units that
require
switch
setting
(Note 2)
C
A
A
A
C
A
A
C
A
A
A
D
B
B
B
C
A
A
C
C
A
D
A
A
A
HWE18220_GB

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