Daikin Rebel DPS003 Installation And Maintenance Manual page 37

DOT-ITB-21-8041-AC
Variable Furnace Controller
Daikin's furnace controller is an electronic device that delivers
full control of the modulating furnace. Control includes
sequencing, ignition, safety, modulation of the control valve,
and the induced draft motor. Inputs to the furnace control board
are an a 0-10V signal. The analog signal will modulate the
burner down to 25% of full load. Safety inputs include pressure
line and electrical connection from the airflow proofing switch
and electrical connection from the rollout switches. Control
board outputs are to the igniter board, modulating gas valve,
and to the induce draft motor.
VB-1200 Trouble Shooting Guide
Table 20: Furnace I.D. Plug Information (Displayed on Power-up)
Display Information (example)
C
CAb
400
nAt or LP
6AS or LP
1.01
Table 21: Normal Furnace Operation
Display Information
Off
PVr
I9n
HEA
WARM-UP Mode
rVn
rEt
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Furnace series or model name, for example, C cabinet series.
Furnace size in 1000's of BTU, for example, 400 kBTU.
Burner fuel type, for example, natural gas or LP.
Software version, for example, v1.01
Mode
System Idle - Control board has power, no faults found, no call for heat.
OFF Mode
System is purging the heat exchanger – No gas on, no flame, inducer runs for the
specified purge timings. Purge cycles occur immediately before and after each
PURGE Mode
burner operation .
System is initiating burner operation – Igniter energized, modulating valve moved
to ignition setting, gas on. Maintained for the trial-for-ignition period and the five
IGNITION Mode
second flame stabilization period.
Period between Ignition and Run – System checks completed before modulation
control begins.
Normal modulating operation.
RUN Mode
System has had a failed ignition attempt or has lost flame during burner operation
Ignition Retry
and is beginning another ignition cycle.
Modulating Furnace Diagnostics
The Rebel furnace control that operates the furnace has
built-in, self-diagnostic capability. The control continuously
monitors its own operation and the operation of the system.
The LED on the control indicates the current system state,
warnings, failures and test modes.
Description
Description
37
FPID: 437300-3-7B-01
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