HAI OMNISTAT RC-122, Installation Instructions Manual

Page: 8 / 16

8
8
01 Communications mode
The thermostat can communicate with remote systems in 4 different modes. These modes are:
0
300 baud, RS-232 mode (for use with personal computers)
1 100 baud, System mode (OmniLT, Omni, Omni II, OmniPro, and OmniPro II systems)
8 PESM mode, (use with Model 1503 automation systems)
24 Day/Night mode (for use with remote setback switch)
The default setting is 1.
02 System
options
The thermostat can be configured with the following system options:
WITH NO
EEC
EEC*
0
8 Auto changeover no fan with heat
1 9 Auto changeover fan on with heat
4 12 Manual changeover no fan with heat
5 13 Manual changeover fan on with heat
* Energy Efficient Control (EEC): In most two-stage installations, stage 2 is less efficient than stage 1. In this
case, Energy Efficient Control (EEC) should be turned on (settings 0, 1, 4, and 5). If the system is equipped
with a highly efficient second stage, you may want to turn EEC off (settings 8, 9, 12, and 13). The thermostat
will act like a conventional two- stage thermostat.
See Owner's Manual for description of EEC.
The default setting is 0.
03 Display
options
The thermostat can be configured to display the following attributes:
0 Celsius am/pm time format programmable
1 Fahrenheit am/pm time format programmable
2 Celsius 24-hour time format programmable
3 Fahrenheit 24-hour time format programmable
4 Celsius am/pm time format non-programmable
5 Fahrenheit am/pm time format non-programmable
6 Celsius 24-hour time format non-programmable
7 Fahrenheit 24-hour time format non-programmable
When connected to an HAI controller, the thermostat should be configured as "non-programmable". To disable
the clock and filter reminder displays, add “16” to each value.
The default setting is 1.