Heat Controller Water Source Heat Pump Aout, GNDIN51, WattMaster WHP, Section, Diagram, Overview

Models: Water Source Heat Pump

1 126
Download 126 pages 9.48 Kb
Page 119
Image 119
AOUT

WattMaster WHP

Section 4

 

 

5.4.2Checking the Loop Controller Outputs

Diagram

Overview

SET METER TO

 

 

The analog output wiring can be checked at

 

 

the Loop Controller by checking voltages on

READ DC VOLTS

 

 

 

 

 

 

 

 

 

 

the Analog Output Connector.

-

+

 

 

Note:

The Loop Controller must be pow-

 

 

ered for these tests.

 

 

 

 

 

 

 

 

 

 

12V

 

 

 

+

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

IN4

 

 

ALL READINGS ARE TAKEN

-

2

 

 

AOUT

 

 

WITH THE (-) LEAD OF THE

GNDIN51

 

 

METER ON THE GND

 

 

TERMINAL

 

 

 

 

 

Measurements

 

 

 

Meter

Ignore readings3for any Acceptableconnections whichRangeare not used in the equip-

 

 

ment.

 

 

 

AOUT1

This output will vary between 0 and 10 VDC to correspond with pump

Pump VFD

pressure setpoint.I72

 

 

 

 

 

 

AOUT2

This output will vary between 0 and 10 VDC to correspond with Heat

Mod. Heat

Addition setpoint.

 

 

 

 

 

 

Start-Up and Troubleshooting

4-37

Page 119
Image 119
Heat Controller Water Source Heat Pump manual Aout, GNDIN51, WattMaster WHP, Section, Diagram, Overview, Measurements, 4-37