Aprilaire 8570 Premium Programmable Thermostat Instruction Manual
10. CHECK EMERGENCY HEAT OPERATION (Heat Pumps Only)
2. Set the thermostat to the EMERGENCY HEAT mode.
TROUBLESHOOTING – EMERGENCY HEAT OPERATION
Notes:
• With the O/B configuration setting in the B position (ON),
the O/B terminal will be on in the Emergency Heat mode. In
the O position (OFF), the O/B terminal will not be on in the
Emergency Heat mode.
Symptom
Cause
• To avoid the minimum on and off times during system
checkout, always start and end the check out
procedure in the OFF mode.
Minimum-off times. Change the mode to OFF first, then change the mode
to EMERGENCY HEAT and make a call for heat.
Thermostat does not call for heat
3. Raise the temperature setting above the room temperature to
activate Emergency Heat. The mode display will change from
“EHEAT MODE” to “HEATING”, which will flash, when the
thermostat is calling for heat. Fifteen (15) seconds must
elapse between each stage. Verify the correct outputs are on
according to the configuration settings shown below:
RH terminal not connected – see wiring diagrams.
Heating equipment power not on.
1. Set the thermostat to the OFF mode.
Emergency Heat does not come on at all
Change position of ELECT/GAS dip switch – ELECT for electric heat systems
(fan on with heat call) or to GAS for fossil fuel systems where the fan is
controlled internally by the heating equipment.
Fan comes on before heat starts, or
Fan does not come on with heat
Single/Multi
The same outputs come on
regardless of how these are set.
HP/HC
Configuration Settings
Elect/Gas
Elect
Gas
Aux. Ht. Stages
The same outputs come on regardless of how these are set.
1st Stage Emer. Heat
Outputs Energized
2nd Stage Emer. Heat
W1, G
W1
W1, W2, G
W1, W2
- 34 -
- 35 -
| General | Details |
|---|---|
| Name | Aprilaire 8570 Premium Programmable Thermostat Instruction Manual |
| Make | Aprilaire |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.57 MB |
(1 votes, average: 5.00 out of 5)
Loading...
Aprilaire 8538 Digital Heat Cool Thermostat Owner’s Manual
AprilAire S86W MUPR WiFi Thermostat User Guide
Aprilaire S86N MU Multi Stage Universal Thermostat Instruction Manual
Aprilaire S86WMUPR Programmable Wi-Fi Multi Stage Universal Thermostat Installation Guide
Aprilaire S86N MUPR Multi Stage Universal Thermostat Owner’s Manual
Aprilaire S84N 1H1C Programmable Single Stage Universal Thermostat Owner’s Manual
TELLUR TLL331441 Thermostat Instructions
EBECO EB500 Electric Floor Heating Thermostat Instruction Manual
GENERAL SENNA 300 Digital Room Thermostat User Manual
HEATIT Z-TRM6 Matt Z-Wave Thermostat User Guide
beca BAC-2000-ML Modulating Touch Button Thermostats User Guide
Danfoss VIMCA20F 24V RT Room Thermostat Installation Guide
Honeywell PRO 4110D Programmable Thermostat Installation Guide
Honeywell TH6320WF2003 Lyric T6 Pro Wi-Fi Programmable Thermostat User Guide
Danfoss RT 2 Series Capillary Tube Thermostat Installation Guide
Hive B011B3J6B8 Active Heating Thermostat Owner’s Manual