HAI OMNISTAT RC-112, Руководство по установке, Страница: 10 / 16

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10 Stage 2 differential
This item specifies the temperature difference between stage 1 (or low speed) heat pump operation and stage 2
(or high speed) heat pump operation. The default setting of 1 (degree F) is recommended for most applications.
If energy efficiency is more important than precise temperature control, this can be raised to 2 or 3 degrees.
This setting affects stage 2 operation for both heating and cooling.
In this thermostat, the automatic anticipator will compensate for the temperature "droop" caused by the stage 2
differential under cold weather conditions.
The default setting is 1.
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Cooling minimum on/off time (minutes)
This item is used to limit the on and off times of the cooling system. When the cooling system starts, it must
remain on for the minimum time set by this item. When the cooling system turns off, it must remain off for a
minimum time set by this item.
Setting Cycles per hour (maximum)
5 6
6 5
7 4
8 3.7
10 3
The recommended setting is 8 minutes. A higher setting may be appropriate for buildings with low heat
loss/gain.
The default setting is 8.
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Heating minimum on/off time (minutes)
This item is the same as the “Cooling minimum on/off time”, but for the heating system.
The default setting is 8.
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Auxiliary heat differential
This item specifies the temperature difference between stage 1 and the auxiliary heat in heating mode. The
default setting of 2 degrees F is suitable for most applications. Note that auxiliary heat is also subject to control
by the EEC routines, which will prevent the use of auxiliary heating if the heat pump is able to provide a
sufficient heating rate. If energy efficiency is more important than precise temperature control, this can be
raised to 3 or 4.
The default setting is 2.