Secondary temperature display – tekmar 557 Thermostat Installation User Manual

Page 45

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557_D - 09/14

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A Watts Water Technologies Company

Recommendation on How to Use Scenes

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Choosing how to use scenes depends on the needs and lifestyle of the customer using
the building.

Multi-Tenant Apartments

Scenes should be disabled (None) in multi-tenant buildings where each occupant has
differing heating requirements.

Residential Homes

Some residential customers may not require scenes, in which case, scenes can be
disabled (None). Home owners that wish to save on energy costs should consider
using the Away scene to save energy while away from the property (example: vacation
or holidays).
The use of the Guest scene is useful in residential applications where there are a number
of spare bedrooms that are occupied on an infrequent basis. Each spare bedroom would
be setup to operate on the Guest scene. The remaining thermostats can be setup to
operate on the None, Away or All scene configuration. Normally, the spare bedrooms
would operate at the moon temperature settings. When guests arrive, scene 5 can be
activated through the use a User Switch or Gateway. The spare bedroom then operates
at the temperature settings or operates on a programmable schedule if a schedule
has been setup. When guests depart, the scene can be changed back to scene 1 and
the spare bedrooms resume operation at the temperature settings.

Commercial Buildings

Commercial buildings are typically in use on a predictable schedule and normally the
building can operate in scene 1. In order to accommodate staff working overtime or
cleaning staff, a 3 or 8 hour temporary override is available when installed in conjunction
with a User Switch or Gateway. In these cases, the thermostats should be setup to use
the All scene configuration. At the touch of a button, the whole building changes from
operating on a programmable schedule (typically at the temperature setting when
not occupied) to operating at the temperature settings for 3 hours (scene 6) or 8
hours (scene 8). After the timer counts down and expires, the scene changes back to
the previous scene.

Secondary Temperature Display

Section L

This thermostat can display the outdoor, floor, relative humidity, or the room heating
and cooling temperature settings in the smaller number area at the top right of the
screen. To toggle the item currently displayed, touch the secondary temperature.

Display of the floor or outdoor temperature requires a connection to an outdoor or
floor temperature sensor, or the thermostat is connected to a tekmarNet

®

system that

includes an outdoor sensor. The reading of the outdoor sensor connected directly to
the thermostat takes precedence over any outdoor sensor reading available on the
tekmarNet

®

system.

or

or

or

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