059705–00 REV. B
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47
16
STARTUP MENU—STEAM
HEATING SYSTEM MENU
Selections:
Steam Hot Water
Default:
Hot Water
Description:
Sets the type of application the Genesis Heat-Timer
®
will be controlling—
STEAM or HOT WATER.
Startup menu reference page 49
.
HEATING SYSTEM—
STEAM
Selections:
Boiler/Valve
Default:
Boiler/Valve
District Steam
Description:
When selecting the Heating System, the time required for the heating
system to fill with steam depends on several factors in most buildings. For example,
using direct burner operation (Boiler/Valve), the time it takes to generate steam
depends on the boiler OFF time length. With a valve (Boiler/Valve), the amount of time
also depends on the status of the heating plant and may additionally vary depending
on the balance of the heating zones’ valve position. However, in cases where steam
is distributed from a local power authority (district steam) or other sources where the
steam is always available at a constant pressure, the time required to fill the heating
system with steam will be relatively constant. If the steam source is of the later type,
you may decide to select the District Steam option. With the District Steam option,
the Heating System Sensor is not used. The Genesis Heat-Timer
®
uses a timer to
start the Cycle-ON. Selecting the District Steam option may result in overheating and
unnecessary energy expenses as the Thermal Lockout feature will not be available.
When selecting the District Steam option for Heating System the Genesis Heat-Timer
®
uses a timer to start the Cycle-ON. In the District Steam application a 2-way valve
with 100% shut-off is used to control the volume of steam entering the building. The
Genesis Heat-Timer
®
will provide control to this 2-way valve.
Steam
Hot Water
HEATING SYSTEM
BACK SAVE
HEATING SYSTEM
BACK SAVE
Boiler/Valve
District Steam
NOTE
Selecting the District Steam option may result in overheating and unnecessary
energy expenses as the Thermal Lockout feature will not be available.
NOTE
If Heating System of BOILER/VALVE is selected, continue Startup Menu—
Steam with
.
If Heating System is DISTRICT STEAM continue the Startup Menu—Steam
with
DISTRICT STEAM DELAY on page 48
.
