Heat Controller Water Source Heat Pump manual Make Up Air Controller, WattMaster WHP, Section

WattMaster WHP Section 1

Pump Reset and Aux. Heating or Cooling. An internal seven day schedule and holiday schedule functions are also built into each WHP Controller.

With the WHP system the sometimes complex control requirements of a large water source heat pump system can be handled with an off the shelf controls system that has most of the features of a full blown building automation system but at a much lower cost. Included with the WHP system is a communications interface module, which allows you to connect a computer to the system onsite and a modem connection for remote monitoring.

Prism, a Windows based software package is available at no additional charge. Some of Prism’s features include graphics, trend logging, and remote alarm call out capabilities. WHP Loop Controller

The Water Source Heat pump Loop Controller can be supplied with the system to control the water loop and its various pieces of equipment. The Loop Controller can operate stand-alone or used with the Water Source Heat Pump Controller (WHP) and in this configuration communicates common data, such as outside air temperature, proof of flow etc., over a network. A System Manager is connected to the Loop Controller to provide a central operator’s interface to the Loop Controller’s setpoints and operating configurations. The Loop Controller is designed with inputs for Supply and Return Water Temperature, Outdoor Air Temperature, Loop Water Pressure Switch or 0-50 PSI Loop Pressure Sensor (4-20ma), Manual Reset Contact, Phase Loss Contact, Request to Run Relay, and Fire/Smoke Relay. Analog outputs (0-10VDC) are supplied for Pump VFD and Proportional Heat. Binary outputs are provided for Compressor Enable, Main Pump Relay, Standby Pump Relay, Alarm Contacts and (8) Relays that can be configured for Heat Rejection or Heat Addition.

Make Up Air Controller

A Make Up Air Controller, for treating 100% outdoor air, is available for use with the Water Source Heat Pump system. Please consult factory for more information on this product.

Design Guide 1-5