tekmar 363 User Manuals

- User Brochure

Universal Reset Control 363

U 363

06/99

Vie

Universal Reset Control 363

Mixing, Boiler & DHW

Mix Demand Boiler Demand

DHW Demand Setpoint Demand WWSD

Minimum

Maximum

Item

NRTL/C

LR 58223

The Universal Reset Control 363 is a microprocessor based control designed to maximize the comfort and efficiency provided by a hydronic heating system. The control automatically adjusts the boiler and mixed loop water temperatures that are delivered to the heating system by using an outdoor reset. Outdoor reset increases the water temperature in the heating system as the outdoor temperature becomes colder. Outdoor reset also increases the energy efficiency of the heating system by not allowing more heat into the building than the building normally loses to the outside. Another benefit of outdoor reset is the reduction of indoor temperature swings - especially in the fall and spring months. The 363 can intelligently integrate indirect fired Domestic Hot Water (DHW) and tekmar zone controls into the heating system.

User Interface

Access Level(s) The tekmar Universal Mixing Control 363 has four access levels which are LTD (limited), USER, INST (Installer),

and ADV (advanced). This brochure only covers the LTD (Limited) and USER levels. Only qualified service people should make adjustments in the INST (Installer) and ADV (advanced) access levels.

Item Field

Displays an abbreviated name of the selected item

Menu Field

Displays the current menu

View Adjust Monitor

Schd Misc

Open Close

°F°

UnOcc

DHW

Aux

Number Field

Displays the current value of the selected item

Mix Demand Boiler Demand

min

sec

Ovr

DHW Demand

Setpoint Demand WWSD

Minimum

Maximum

Status Field

Displays the current status of the control’s inputs, outputs and operation

Item

Buttons

Selects Menu,

{

Items and adjusts settings

The tekmar Universal Reset Control 363 has a Liquid Crystal Display (LCD) and four push buttons (

Menu, Item

, , ) which are used to view and adjust the settings.

All of the items displayed by the control are organized into various menus. These menus are listed on the left hand side of the display (Menu Field). To select a menu, use the

button. By pressing and releasing the next available menu. Once a menu is selected, there will be a group of items that can be viewed within that menu.

button, the display will advance to the

Open

Aux

UnOcc

Occ

Open / Close

Displays when the actuator is opening or closing the valve.

Mixing Device Output Scale

Shows output of injection pump or mixing valve. Arrows show

whether the output is increasing or decreasing.

Burner

Displays when the boiler relay is turned on.

Pump

Displays boiler pump 1 and/or mixing pump 2 is operating.

DHW Pump / Valve

DHW

Displays when the DHW pump or valve is on.

Storage Operation

Displays when the variable speed driven injection pump is drawing heat from the storage tank.

Boost

Displays when the control is in boost after setback.

UnOccupied Mode

Displays when control is in unoccupied mode.

Occupied Mode

Displays when the control is in occupied mode.

Item

The abbreviated name of the selected item will be displayed in the item field of the display. To view the next available item, press and release the reached the last available item in a menu, pressing and releasing the

Item

button. Once you have

Item

button will

return the display to the first item in the selected menu.

Adjust

To make an adjustment to a setting in the control, begin by selecting the appropriate menu using the use the

Additional information can be gained by observing the Status and Pointers fields of the LCD. The status field will indicate which of the control’s outputs are currently active. Most symbols in the status field are only visible when the View Menu is selected.

button. Then select the desired item using the

and/or button to make the adjustment.

Item

button. Finally,

Ovr

F, °C, sec,

min, hr

Override

Displays when the control is in override mode.

Warning

Displays when an error exists or a limit has been reached.

Lock - Unlock

Displays whether access levels are locked or unlocked.

°F, °C, sec, min, hr,

Units of measurement.

Pointer

Displays control operation as indicated by text.

Note: Depending on the settings the installer makes in the control, certain menu items may not appear.

Item

LTD

• •

•

• •

•

• •

•

• •

USER

Current outdoor air temperature as measured by the outdoor sensor. This is the default display for the control.

Target room air temperature. “— — —” denotes no heat is required. Will not display if RTU is connected.

Measured room air temperature at the indoor sensor. Will not display if RTU is connected.

Current mixed supply water temperature as measured by the mixing sensor.

Current boiler supply water temperature as measured by the boiler sensor.

Current storage tank water temperature as meassured by the storage tank sensor.

Target DHW tank temperature. This item can only be viewed if a tekmar sensor is used to measure the DHW tank temperature.

Current DHW tank temperature as measured by the DHW tank sensor.

363 View Menu

Range

-67 to 149˚F (-55 to 65˚C)

- - -, 35 to 100˚F (2 to 38˚C)

-58 to 167˚F (-50 to 75˚C)

-31 to 266˚F (-35 to 130˚C)

- - -, OFF, 70 to 190˚F (21 to 88˚C)

-31 to 266˚F (-35 to 130˚C)

Item

Occ

UnOcc

Occ

UnOcc

Occ

UnOcc

LTD

• •

•

• •

•

363

USER

The desired room air temperature during an Occupied period for mixing zone(s). Will not display if RTU is connected. In LTD access level, this setting can only be adjusted ±3°F (±1°C).

The desired room air temperature during an UnOccupied period for mixing zone(s). Will not display if RTU is connected.

The minimum temperature at the slab sensor, provided the control is not in Warm Weather Shut Down. This item can only be adjusted if a tekmar sensor is connected.

Mixing Water Temperature Setback. The amount that the mixing supply temperature will be reduced when the control is in an UnOccupied mode.

The desired room air temperature during an Occupied period for the boiler zones in the heating system. In LTD access level, this setting can only be adjusted ±3°F (±1°C).

The desired room air temperature during an UnOccupied period for

•

the boiler zone(s) in the heating system.

Boiler Water Temperature Setback. The amount that the boiler supply temperature will be reduced when the control is in an

•

UnOccupied mode.

The DHW storage tank’s temperature during the Occupied period. This item can only be adjusted if a tekmar sensor is used to measure

•

the DHW tank temperature.

The DHW storage tank’s temperature during the UnOccupied period.This item can only be adjusted if a tekmar sensor is used to measure the DHW tank temperature.

Adjust

Range

35 to 100˚F (2 to 38˚C)

OFF, 35 to 120˚F (2 to 49˚C)

0 to 50˚F (0 to 28˚C)

35 to 100˚F (2 to 38˚C)

0 to 50˚F (0 to 28˚C)

OFF, 70 to 190˚F (OFF, 21 to 88˚C)

OFF, 70 to 190˚F (21 to 88˚C)

The system’s warm weather shut down during the Occupied period.

Occ

UnOcc

•

The system’s warm weather shut down during the UnOccupied period.

•

35 to 100˚F, OFF (2 to 38˚C)

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