This article applies to the following CoolMaster products:
- CoolMaster *
- CoolMasterPro
- CoolMasterNet
- CloudBox
Configuring the CoolMaster DIP switches are essential for a proper device operation and IDU discovery.
Different HVAC brands require different configurations.
The following article specifies the guidelines for the DIP switch configuration.
DIP Switches are located under the small access door on the front plastic cover of your device
DIP Switches order
The DIP Switches rows are referenced by the letter P, Q, R, and S - as shown below.
DIP Switch P
Switch | ON | OFF |
---|---|---|
P1, P2 | Link L6,L7 and enable polarity auto-detection on L7 | Separate L6,L7 |
P3 | L6 Enabled, L2 Disabled | L2 Enabled, L6 Disabled |
P4 | N/A | Normal Operation Mode |
Note!
- Switches P1 and P2 should always be in the same position. If they are both in ON position, HVAC Lines L6 and L7 are linked into one line with option to auto-detect line polarity. Otherwise, if both P1 and P2 are in OFF position HVAC Lines L6 and L7 are separate independent lines.
-
If L6 and L7 are linked into L7, enabling of the L2 with P3 will not influence on L7 operation.
-
Switch P4 must be in OFF position for normal operation of CoolMaster.
DIP Switches Q, and R
DIP Switches Q and R are used to adjust HVAC Lines L1 and L2 internal parameters to meet specific HVAC type requirements.
HVAC Type | DIP Switch Q - HVAC Line L1 | |||
---|---|---|---|---|
Q1 | Q2 | Q3 | Q4 | |
DK | ON | OFF | ON | OFF |
ME | OFF | OFF | OFF | OFF |
TO | OFF | ON | OFF | ON |
SA | OFF | ON | OFF | ON |
PN | OFF | ON | OFF | ON |
HT | OFF | ON | OFF | ON |
HA | OFF | ON | OFF | ON |
HVAC Type | DIP Switch R - HVAC Line L2 | |||
---|---|---|---|---|
R1 | R2 | R3 | R4 | |
DK | ON | OFF | ON | OFF |
ME | OFF | OFF | OFF | OFF |
TO | OFF | ON | OFF | ON |
SA | OFF | ON | OFF | ON |
PN | OFF | ON | OFF | ON |
HT | OFF | ON | OFF | ON |
HA | OFF | ON | OFF | ON |
Note!
-
If all four Dip Switches R1, R2, R3, and R4 are in ON position during a CoolMaster power reset, the CoolMaster will be forced into BOOT Mode.
DIP Switch S
Switch | ON | OFF |
---|---|---|
S1, S2 | Enable DC Output on HVAC Line L1 | Disable DC Output on HVAC Line L1 |
S3, S4 | Enable DC Output on HVAC Line L2 | Disable DC Output on HVAC Line L2 |
Note!
- Switches S1 and S2 should be in the same position.
- Switches S3 and S4 should be in the same position.
-
DC Output on HVAC Line L1 or L2 is required only in case when the line is configured as DK or ME and non-VRF equipment is connected to this line (via KRP, MAC or similar adapter). And only if no other DC source is present on this line!