Mars Confort-Aire Century VCD18 Series Installation Manual page 39

Installation and Operation Manual - VCDxxSA
Installation and Operation Manual - VCDxxSA
Function DIP switch settings:
The 24V thermostat mode needs to refer
to the following settings:
000 is the default 000/001/010/
011/100/101/110/111,internal
machines with different abilities,
electric heating and PSC
classification for use.
Indoor unit dial code
Dial Control
No.
Code Scenario
1 SW1-2 1,2
2 SW1-3 1,2,3
3 SW2-1 1
4 SW2-1 2
5 SW2-2 2
6 SW2-3 2
7 SW2-4 2
Rotary
8 2
Switch S3
9 SW3-1 1
10 SW3-2 1
11 SW3-3 1
12 SW3-3 2
13 SW3-4 1,3
14 SW4 1,2,3
15 S4-1 1,3
16 S4-2 1,3
NOTICE:
The SW4 DIP switch is only for Certified service technicians to debug and use, please do not touch it.
Function combination table of SW1-1 and SW1-4:
Function
Anti-cold blow protection option
Single cooling / heating and and cooling options
Compressor Running (demand working with heat
pump+ Electric heat)
Temperature di erential to activate first stage
auxiliary heat(the GAP of T1 and Ts),Wire
controller demand with heat pump+Electric heat
working together
Electric heat on delay
Electric auxiliary heating delay to start time
Compressor/Auxiliary heat outdoor ambient lockout
Set outdoor temperature Limitation
(for auxiliary heating or compressor)
Maximum continuous runtime allowed before
system automatically stages up capacity to satisfy
set point. This adds 1 to 5°F to the user set point
in the calculated control point to increase capacity
and satisfy user set point
Cooling and heating Y/Y2 temperature
di erential adjustment.
Compressor Running (demand working with heat
pump+ Electric heat)
Temperature di erential to activate
second stage auxiliary heating(the GAP of T1 and
Ts)Wire controller demand with heat pump+Electric
heat working together
Fan speed of cooling mode when
24V Thermostat is applied for.
Electric heat nominal CFM adjustment
Default ON
DH function selection
SW1 Control type
Free match
Wired
controller
24V
Thermostat
24V
Thermostat
ON
NO
Cooling
Compressor slower speed
2 （1 ）
YES
30 minutes
The compressor will
not operate if the
outdoor temperature
is lower than the
temperature
represented by S3
0 means that the temperature protection is not
turned on, the dial range is 1 through F, 1 equals -4°F
and it increased up to 46°F based on table "A"
30 minutes
Compressor slower speed
Compressor slower speed
4 （2 ）
Turbo
Available settings are 000/001/010/011. Each digit corresponds an indiviual swith
position.
For example [SW4-1 OFF, SW4-2 ON, SW4 -3 OFF] = 010
See table 11 for the corresponding CFM adjustment
For dual stage supplemental heat,
[Default] For single stage supplemental heat,
W1 and W2 are connected
Dehumidification feature is enabled
[Default] Dehumidi fication
control not available
38
38
38
Stand alone or full system
Free match
Full system
Full system
Stand alone
OFF Note
[Default] YES
[Default] Cooling & Heating
[Default] Faster Compressor
Only a ects compressor
and W1
[Default] 4 （2 ）
[Default]NO
[Default] 15 minutes Based on SW2-2 is ON
[Default] The heater will not
operate if the outdoor
temperature is greater
than the temperature
SW2-4 and S3 need to
represented by S3
working together
[Default] 90 minutes
[Default] Faster Compressor Only a ects compressor
Only a ects compressor
[Default] Faster Compressor
and W2
[Default] 6 （3 ）
High
W1 and W2 are
controlled independently.
through
thermostat