WattMaster Water Source Heat Pump, Installation & Operation Manual

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Section 4
Start-Up and Troubleshooting
Table of Contents
1.0 Communications Overview........................................ 1
1.1 How It Works...........................................................................................................1
1.2 WattMaster WHP System ........................................................................................1
2.0 WHP Controller Overview .......................................... 4
2.1 How It Works...........................................................................................................4
2.1.1 Initialization .....................................................................................................4
2.1.2 Operating Summary .........................................................................................4
2.2 Becoming Familiar with the WHP Controller .........................................................5
2.2.1 24 VAC Power Connector ...............................................................................5
2.2.2 Analog Inputs ...................................................................................................6
2.2.3 Analog Output Description ..............................................................................6
2.2.4 Relay Output Descriptions ...............................................................................6
2.2.5 RS-485 Communications Connector ...............................................................7
2.2.6 WHP Controller Wiring...................................................................................8
3.0 Loop Controller Overview......................................... 9
3.1 How It Works...........................................................................................................9
3.1.1 Initialization .....................................................................................................9
3.1.2 Operating Summary .........................................................................................9
3.2 Loop Controller Inputs & Outputs .........................................................................10
3.2.1 Analog Inputs .................................................................................................10
3.2.2 Analog Output................................................................................................10
3.2.3 Binary Output.................................................................................................11
3.2.4 Relay Expansion Board - Outputs..................................................................11
3.2.5 Analog Input Expansion Board......................................................................11
3.2.6 Comm Connector - Communications ............................................................12
3.2.7 Power Terminal..............................................................................................12
4.0 Start-Up.................................................................... 14
4.1 Blink Codes for WHP Controllers .........................................................................14
4.2 Blink Codes for Loop Controllers..........................................................................15
4.3 Communications Checklist ...................................................................................15
4.4 Installation and Commissioning Information ........................................................16
4.5 Setting Address Switches.......................................................................................19
4.5.1 Setting the MiniLink Address Switch............................................................19
4.5.2 Loop Controller Addressing...........................................................................20
4.5.3 WHP Controller Addressing ..........................................................................20