Daikin MPS015 F Installation And Maintenance Manual page 36

Ignition Control Module for Modulating Gas Furnace (300 & 400 MBH Furnace Only)
Figure 30: Typical Modulating Gas Furnace Electrical Schematic with Sensor
L1
red
TB_L1
TB_3
R1
11 14
+
yellow
-
tan
TB_4
W
yellow
violet
R
ROS1 ROS2
SPARK IGNITOR
FLAME SENSOR
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.
IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS
black
115VAC
T3a
Class II
40VA
violet
24VAC
C
black
115VAC
T3b
Class II
40VA
tan
24VAC
C
SC30
tan 1 2
3
7(+)
8(-) 4
5
6
UTEC 1171-63
P2-4
P1-7
W2
P1-2
P2-3
yellow
W1
P2-2
P1-4
yellow
R
24 VAC
orange
C
P1-6
P1-3
orange
P1-9
P1-5
orange
HV
P1-8
orange
FS HI IND
black
L1 IND
red
GND
TB_G1
green
white
TB_2G
green
white
tan
Modulating Gas
Valve
violet
orange
R1
A1 A2
2-stage gas valve
TB_5 LOW
tan
C
green
HI
yellow
green
orange
orange TB_6
HIGH PRESSURE SWITCH
(HPS)
orange
LOW PRESSURE SWITCH
(LPS)
black
white
Inducer Fan
Motor
red
36
o
PTIonal
L2
white
TB_L2
APS Airflow Proving Switch 1/4" Quick Connect Terminal
ROS1 Roll Out Switch #1
ROS2
Roll Out Switch #2 Terminal Block
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