Installation

ManualsBrandstekmar ManualsSensors364 Universal Reset Control

In cases where a slab sensor has not been or cannot be installed in the snow melting slab, it is possible for the Universal Reset

Control 364 to operate the snow melting system. This mode of operation is not recommended since the control can no longer regulate

the slab temperature. Instead, the control supplies a calculated mixed supply water temperature to the slab. This method of operation

can cause the slab to operate at surface temperatures that are either higher or lower than required. A higher surface temperature can

lead to excessive energy usage and fuel costs. A lower surface temperature can cause the slab to freeze over.

WARM WEATHER SHUT DOWN (WWSD)

Since a slab sensor is not in use, the Warm Weather Shut Down is determined only from the outdoor temperature. Once the outdoor

temperature rises above the MELTING setting, the control goes into WWSD and ignores any demand for melting or idling.

MELTING MODE (MELTING)

The Universal Reset Control 364 is a manual snow melting control. In order for the snow melting system to be started, one of the

three methods described in section E4 must be used. When the control is in the melting mode, the Melting pointer is visible in the

View menu and either EXT, INF or a running time can be read when viewing the SNOWMELT item in the View menu. The MELTING

setting in the Adjust menu sets the theoretical slab surface temperature that is maintained while the control is in the melting mode.

IDLING MODE (IDLING)

When the snow melting system starts from a cold temperature, the time required for the slab to reach the “Melting” temperature

may be excessive. To decrease the start up time, the slab can be maintained at an “Idling” temperature. The Idle feature is also

useful for preventing frost and light ice formation. When the control is in idling mode, the word IDLE can be read when looking at

the SNOWMELT item in the View menu. The IDLING setting in the Adjust menu sets the theoretical slab surface temperature that

is maintained while the control is in the idling mode.

There are three methods in which the snow melting system can be enabled on the Universal Reset Control 364. Either an external

demand, Remote Start / Stop Module 039 or a Remote Display Module 040 can be used to start the snow melting system.

EXTERNAL DEMAND

An external snow melting demand is generated when a voltage between 24 and 240 V

(ac) is applied across the Mix Demand terminals (1 and 2). An external demand must be

present for at least 4 seconds in order to start the snow melting system. Once started,

the slab temperature is increased to the MELTING setting and maintained at the MELT-

ING temperature until the RUN TIME reaches 0:00. If the RUN TIME reaches 0:00 and

the external demand is still present, the control continues at the MELTING temperature

until the external demand is removed or the system is otherwise stopped.

REMOTE START / STOP MODULE 039

A Remote Start / Stop Module 039 can be used to start and stop the snow melting system. The snow melt-

ing system is enabled by pressing the button on the front of the 039. While the slab is coming up to tem-

perature, a green indicator light flashes on the front of the 039. Once the slab is at the melting temperature

and the RUN TIME is counting down, the green indicator light on the front of the 039 is on solid.

To disable the snow melting system when it is in melting mode, press the button on the face of the 039.

When the system is stopped, a solid red indicator light is displayed on the face of the 039 for 5 seconds.

If the snow melting system is disabled while there is still an external demand for snow melting, the 039

displays a solid red indicator light until the external demand is removed.

REMOTE DISPLAY MODULE 040

A Remote Display Module 040 can be used to start and stop the snow melting system. The snow melting

system is enabled by pressing the ▲ button on the 040 while in the View menu. Once the snow melting

system is enabled, the word STRT is displayed in the LCD for at least five seconds. The 040 then displays

the RUN TIME setting to allow the user to adjust it.

To disable the snow melting system when it is in the melting mode, press the ▼ button on the 040 while in

the View menu. The word STOP is displayed for five seconds.

Section E3: Without Slab Sensor

Section E4: Snow Melting Enable

Mix

Demand

24 to 240 V (ac)