4.2Blink Codes for Loop Controllers

WattMaster WHP

Section 4

 

 

4.2Blink Codes for Loop Controllers

The Loop Controller uses an on board LED to indicate various diagnostic conditions during powerup and operation. The Loop Controller Unit LED is labeled “LED2”. Starting with power up the LED blink codes are as follows:

Off for five seconds

COMM LED blinks the board address (Address 14 = 14 blinks)

Five second pause

Status code is repeatedly blinked every ten seconds to indicate controller status:

 

 

 

 

PriorityLowest

No.of1Blinks

NormalStatusOperation

-

2

 

Pump and/or Flow Failure

-

3

 

Bad Water Temp Sensor

-

4

 

Single Phase Shutdown

-

5

 

Water Pressure Alarm

Highest

6

 

Fire Alarm

Figure 4-7:Diagnostic LED

Codes

Only the highest priority failure code will be shown. You must correct the highest priority alarm before other problems will be indicated.

4.3Communications Checklist

WHP Controllers are addressed from 1 to 30 on each loop except the loop with the WHP Loop Controller. This loop can only use address 1 thru 29 for the WHP Con- trollers. WHP Loop Controller is addressed as 30 on the loop it is connected to.

Power has been cycled after changing addresses

A multiple loop CommLink II is powered and connected to the communications loop.

System Manager is connected to one of the local loops.

The MiniLinks on each local loop are addressed with a unique address 1 thru 30, depending on the number of loops on your system.

Start-Up and Troubleshooting

4-15

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Heat Controller Water Source Heat Pump 4.2Blink Codes for Loop Controllers, 4.3Communications Checklist, PriorityLowest