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HEAT-TIMER CORP.
059305–00 REV. E
ETV PLATINUM PLUS INPUTS
SYSTEM TEMPERATURE SENSOR
The ETV Platinum Plus is designed to connect to the provided Heat-Timer temperature sensor probe with enclosure (P/N 904222–00).
The sensor must be installed within 1 to 3 feet (0.3 to 0.9meters) after the mixed outlet of the motorized mixing valve, and before
any takeoffs.
AUX SENSOR/SWITCH INPUTS—OPTIONAL
Auxiliary inputs connected to the ETV Platinum Plus can configured as temperature sensors or switch sensors. When configured as a
switch sensor, the ETV Platinum Plus detects an open or close switch contact.
When configured as a temperature sensor, the sensor monitors water temperature. When placed in the COLD and HOT inlet of the
valve, the sensor can be configured as Feed-Forward to provide an additional feedback to the control for maintaining the accuracy of
the desired setpoint temperature.
Auxiliary temperature sensors must be installed at least 3 to 6 feet (1.0 to 1.8 meters) from the valve, and after the cold and return
lines join together. When using the Feed-Forward feature it is recommended to install the Auxiliary Temperature Sensors at least 6
feet (1.8 meters) from the valve.
FLOW PROVE—OPTIONAL
The Flow Prove input checks for the flow status before opening the mixing valve. If no flow status exists, the control will keep the
mixing valve closed (fully COLD). However, if the no flow status occurs during normal valve operation, the ETV Platinum Plus will keep
the mixing valve position at its latest opening percent or return the mixing valve to a predetermine position as set by the installer.
4–20MA REMOTE SETPOINT—OPTIONAL
The 4–20mA remote setpoint can be used when it is desirable to set the ETV Platinum Plus setpoint remotely using an EMS system. Any
signal that is less than 2mA or greater than 22mA will close the mixing valve and trigger an alarm (See “Alarm Messages” on page 41).
02 DETAILED OPERATION
NOTE
Alarms for auxiliary sensors are available with RINET communication option only and is accessed via Internet
through BuildingNet.
NOTE
If the current valve position is lower than the preset valve position setting, the valve will remain at the current position.
It is the responsibility of the installer to properly select the flow switch and the gpm flow rate required for the switching
needed for the application.
NOTE
The ETV Platinum Plus does not source power to the 4–20mA terminals. The EMS system must provide the
excitation voltage.
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