46 RT-SVD03G-EN
ReliaTel LED Functions
ReliaTel Dehumidification Module (RTDM)
Green system LED
• NA - No Onboard LED
Economizer Actuator Module (ECA)
Green system LED
• On: OK to economize
• Slow flash: Not OK to economize
• Fast flash: Not communicating with RTRM
• OFF: No power or system failure
• 1/2 second on, 2 seconds off: no communication
• Error codes — 1/2 second on, 1/4 second off
• 1 flash – Actuator fault
• 2 flash – CO2 sensor
• 3 flash – RA humidity sensor
• 4 flash – RA temp sensor
• 6 flash – OA humidity sensor
• 7 flash – No Communication with RTRM or OAT sensor has failed.
• 8 flash – MA temp sensor
• 9-11 flash – Internal fault
Ignition Control (IGN)
Note: See ignition control section for specific flash code schedule.
Green
• On: Normal no call for heat
• Slow flash: Active call for heat
• Fast flash: Not communicating with RTRM
• Error codes
• 2 flash – system lockout – failure to sense flame
• 3 flash – pressure switch failure to close when CBM stops or open when CBM starts (not
applicable to 12½ to 50 tons)
• 4 flash – TCO circuit open
• 5 flash – Flame being sensed yet gas valve not energized
• 6 flash - Flame Rollout (FR) circuit open (Not applicable to 12½ to 50 tons)