HAI RC-90 Installation Instructions Manual Download Page 14 | Manualshive

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HAI RC-90 Installation Instructions Manual Download Page 14

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All thermostats on an OmniLT controller are connected to the GRN (Green), BLK (Black), and YEL (Yellow)
terminals in the section marked "TSTAT".

Connect the red COMM cable wire with the black COMM cable wire. Make the connections (as shown in
Figure 9) using the supplied wire splices.

Note: Do not connect the red COMM cable wire to 12V.

Figure 9 - Hookup to an HAI system

Additional thermostats are connected in parallel. They may be connected in home-run or daisy chain
configuration.

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Summary of Contents for RC-90

Page 1: ...eptable in the country in which this equipment is to be installed INSTALLATION Before installing this thermostat 1 Read all of the installation instructions carefully Read the Owner s Manual carefully...

Page 2: ...TING When mounting the RC 90 grasp the thermostat by the sides avoiding the keys and unsnap the base from the face Holding the base to the wall so that the word TOP is upright and facing you 1 Mark th...

Page 3: ...ation See Figures 9 10 Insert the cable into the connector on the thermostat circuit board marked COMM Upon completion of wiring the thermostat push all excess wiring into the hole in the wall Plug th...

Page 4: ...check wiring be sure that there are no stray wires or wire strands at the connections 2 It is not necessary to connect the remote system COMM cable at this time 3 Connect power to the control transfo...

Page 5: ...5 5 Figure 5 Installation as a Master thermostat...

Page 6: ...6 6 Figure 6 Installation as a Slave thermostat Figure 7 Installation as a Zone thermostat with separate transformer Required by some zone panels...

Page 7: ...EAT COOL or OFF CONFIGURING THE BACKLIGHT ON THE RC 90B The backlight on the RC 90B can be configured to one of three different modes 1 on for 30 seconds when a key is pressed 2 always on or 3 always...

Page 8: ...play are the item number 2 The large blinking digits in the center of the display are the value of the item number 3 Press the Prog key to advance to the next item 4 Press the Hold key to return to th...

Page 9: ...ferent 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...

Page 10: ...minder displays add 16 to each value The default setting is 1 04 Calibration offset This item is used to raise or lower the current temperature reading by 1 degree Fahrenheit or 1 2 degree Celsius If...

Page 11: ...d heat setting is reached This is done to avoid overheating the air while the walls and furniture catch up A setting of 0 will disable this feature 0 No anticipation 3 5 Normal anticipation 10 Maximum...

Page 12: ...y 30 No change The default setting is 30 Note If an HAI automation system is being used the controller system time is sent to the thermostat every minute This adjustment will have no effect 15 Filter...

Page 13: ...ing minimum on off time 8 12 Heating minimum on off time 8 13 Not used 14 Clock adjust 30 15 Filter reminder 10 16 System runtime This week 17 System runtime Last week REMOTE SYSTEM WIRING DIAGRAMS Th...

Page 14: ...TAT Connect the red COMM cable wire with the black COMM cable wire Make the connections as shown in Figure 9 using the supplied wire splices Note Do not connect the red COMM cable wire to 12V Figure 9...

Page 15: ...be set to 24 Run a two conductor wire from the remote system or remote switch to the thermostat location Make the connections using supplied wire splices See Figure 10 Red and yellow wires are not us...

Page 16: ...at keys for test remove jumper SYMPTOM ACTION TO TAKE 1 Check COMM connector and wiring 2 Check thermostat address setting 3 Check communications mode setting Control By Remote System Not Working 4 Ch...

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