Robertshaw 9720i User Manual download pdf (Page 23)

When would I need to change the INSTALLER settings?

NEVER! The INSTALLER SETTINGS are selected based on the type of equipment you have in your home. This feature should be

set only by a certified HVAC technician. Changing these settings could result in higher energy costs and may even damage your

equipment. There is a security lock on this feature to prevent tampering. USE IT!

How does Energy Efficient Recovery™ (EER™) work?

Energy Efficient Recovery™ is an energy saving feature. During a set back period (or set up in cooling), it allows the thermostat to

look ahead two hours to determine when to turn on the heating (cooling) system. During this period, the second stage is locked out to

allow the first (and most efficient stage) to bring your home to the desired temperature.

How does my remote indoor sensor work?

The remote indoor sensor (part # 9020i) can be used to improve the comfort of your home. When used in conjunction with the local

sensor on the thermostat, the two sensors average the sensed temperature and control to that average temperature.

You also can use the remote sensor in a stand-alone situation when you want to control the temperature in a remote room but have

the thermostat in a secure location.

When would I need a remote indoor sensor?

Large rooms are ideal for remote sensors. Installing a remote sensor across from the thermostat will provide constant comfort

throughout the living space.

How does my remote outdoor sensor work?

The remote outdoor sensor (part # 9025i) can be used to aid in the comfort of your home or simply as a sensing device to inquire

about outdoor conditions. In most applications, the thermostat will have a display of the temperature sensed by the remote outdoor

sensor. With your heat pump system, the remote outdoor sensor can help determine when to turn on the second stage of heating for

optimal comfort.

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Robertshaw 9720i User Manual Page 23