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2, 3, and 4 Way Motorized Valves

Motorized Valve

Motorized Valve Radiant

Communications

Communication: BACnet	Communication: Modbus	Communication: Internet
HWR Platinum	HWRQ Platinum	MPC Platinum
MPCQ Platinum	Multi-MOD Platinum	SRC Platinum

Condensing Boiler Controls

Mini-MOD-CNC

Digital Set Point Controls

DIGI-SPAN® HWE-Elite & SEQ-3 Series	DIGI-SPAN® MC-Elite Series	DIGI-SPAN® SPC-Elite
DIGI-SPAN® TSC-Elite	DIGI-SPAN® VSP-Elite	ESV - Electronic Steam Valve Control

Domestic Hot Water Controls

DHW Energy Saver	DIGI-SPAN® HWE-Elite & SEQ-3 Series	ETV - Electronic Tempering Valves
HWR Platinum	HWRQ Platinum	Mini-MOD
Mini-MOD-CNC	Multi-MOD Platinum	Precision Tempering Valves
SQ-Elite Series

Hydronic Heating Controls

DIGI-SPAN® HWE-Elite & SEQ-3 Series	DIGI-SPAN® MC-Elite Series	DIGI-SPAN® RSM-Elite
DIGI-SPAN® VSP-Elite	HWR Platinum	HWRQ Platinum
Mini-MOD	Mini-MOD-CNC	Multi-MOD Platinum
SQ-Elite Series	ZCP

My outdoor sensor reading does not match the actual temperature.
Why is my temperature sensor reading Open on the control display?
Why is my temperature sensor reading Short on the control display?
Why does my Heat-Timer hot water reset control (HWR) flash OPN instead of the outdoor temperature?
Why doesn't my Heat-Timer Remote Communication system show the history of the space temperatures? I can communicate with the system and set any of the panel parameters, but when I go to check how well the system is holding space temperatures, I get only blanks.

Q: My outdoor sensor reading does not match the actual temperature.

A:The outdoor sensor measurement may vary based on its location and its sun exposure. In most cases it will never match a weather station that is located several miles away. most current Heat-Timer controls have a Trim feature which allows the sensor reading to be slightly modified just a few degrees to satisfy similar circumstances. If the difference was large, then check the sensor by disconnecting one of its wires from the control. The control should read OPEN. If not, contact technical support.

Related Application:

Q: Why is my temperature sensor reading Open on the control display?

A:Remove the sensor wires from the control and check for continuity across the wires with and meter. If no continuity existed, check or replace the wires. if continuity did exist, then contact technical support.

Related Application:

Q: Why is my temperature sensor reading Short on the control display?

A:Remove one of the sensor wires from the control. The control display should change and display OPEN. Then check the sensor wiring specifically around spliced areas. If wiring was good, then disconnect the sensor wires from the control and check the sensor wires with an Ohm meter. The readings should match the sensor temperature chart on the control manual. It not, then replace the sensor. If after removing one of the sensor wires the control read SHORT, then contact tech support.

Related Application: Sensors

Q: Why does my Heat-Timer hot water reset control (HWR) flash OPN instead of the outdoor temperature?

A:Heat-Timer controls use the code OPN when they can not detect a sensor. For example, if someone were working in the building and cut the wires leading to the outdoor sensor, the HWR would begin to flash OPN to signal that the sensor was no longer attached. To find the source of the OPN reading, first make sure that the outdoor sensor wires are attached to the input terminals (the IT terminals in the case of an HWR). Then place a jumper wire across the input terminals (IT). The display should change to read SH-I (the code for a shorted sensor). If the display does change, the HWR is working properly. Check the wires to make sure they are not broken, and locate the sensor to see if it has been damaged

Related Application: Steam Heating Controls | Modulating Controls | Sequencing Controls | Digital Set Point Controls | Tempering Valves

Q: Why doesn't my Heat-Timer Remote Communication system show the history of the space temperatures? I can communicate with the system and set any of the panel parameters, but when I go to check how well the system is holding space temperatures, I get only blanks.

A:To keep a record of the space temperatures (as well as the outdoor temperature and system sensor), the Remote Intercept must know what the time and date are. Use the SPT (Set Present Time) command. This will prompt for the present date and for the time of day. Once the system has this information, it will keep a log of the histories.

Related Application: Steam Heating Controls | Hydronic Heating Controls | Modulating Controls | Communications

Modulating Controls

DIGI-SPAN® MC-Elite Series	DIGI-SPAN® RSM-Elite	DIGI-SPAN® VSP-Elite
ESV - Electronic Steam Valve Control	ETV - Electronic Tempering Valves	Mini-MOD
Mini-MOD-CNC	Multi-MOD Platinum

Motorized Valves and Controls

DIGI-SPAN® HWE-Elite & SEQ-3 Series	DIGI-SPAN® MC-Elite Series	ESV - Electronic Steam Valve Control
ETV - Electronic Tempering Valves	HWR Platinum	Motorized Valve
Motorized Valve Radiant	MPC Platinum	SQ-Elite Series
SRC Platinum

OBSOLETE Products

Gold Series Controls (Obsolete)	HWE Series (Old Style) (Obsolete)	HWM Heatrol Series (Obsolete)
MCA, MCP, MCF (Obsolete)	SEQ-6, 12, 24, 6P, 12P (Obsolete)	TGC (Obsolete)
Visual Gold Plus 5.17 (Obsolete)

Pump Controls

PLL (Pump Lead-Lag Control)

SCP-6 (System Control Panel)

Radiant Controls and Valves

DIGI-SPAN® HWE-Elite & SEQ-3 Series	DIGI-SPAN® MC-Elite Series	DIGI-SPAN® RSM-Elite
DIGI-SPAN® SPC-Elite	DIGI-SPAN® TSC-Elite	DIGI-SPAN® VSP-Elite
HWR Platinum	HWRQ Platinum	Mini-MOD
Mini-MOD-CNC	Motorized Valve Radiant	SMC-Gold
SQ-Elite Series	ZCP

Sensors

MLS/MLS-A	OTM (Oil Tank Monitor)	Sensors
Sensors: Mini-MIG	Sensors: Wireless Network Sensor System

Sequencing Controls

DIGI-SPAN® HWE-Elite & SEQ-3 Series	DIGI-SPAN® TSC-Elite	HWRQ Platinum
Mini-MOD-CNC	MPCQ Platinum	SQ-Elite Series

Snow Melt Controls

DIGI-SPAN® RSM-Elite

SMC-Gold

Steam Heating Controls

DIGI-SPAN® MC-Elite Series	DIGI-SPAN® SPC-Elite	DIGI-SPAN® TSC-Elite
EPU EPU-CH	ESV - Electronic Steam Valve Control	MPC Platinum
MPCQ Platinum	Multi-MOD Platinum	SQ-Elite Series
SRC Platinum

Steam Outdoor Reset

EPU EPU-CH

MPC Platinum

MPCQ Platinum

Tempering Valves

ESV - Electronic Steam Valve Control	ETV - Electronic Tempering Valves	Precision Tempering Valves
TMC and Solenoid Valves

VARIVALVE® Radiator Air Vents

VARIVALVE®