D&L Parts Co.Vol. 3

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Furnace Controls & Air Switches
358 This information is provided “as is” without warranty of any kind by any person,
including without limitation, the owner and the publisher.
Unit#2498030
Hot Surface Ignition – Non-Integrated
Features program keys for multiple timing selections, tri-colored LED
indicator for diagnostics, direct and indirect flame sense compatibility
and universal design.
Unit#2498030
Hot Surface Ignition – Universal Integrated
Silicon carbide ignition. Controls gas burner, ignitor, blower, inducer, air
cleaner and humidifier. 30-second prepurge.
FurnaceControls&AirSwitchesUnit#2498030
Nitride Hot Surface - Integrated
Nitride ignition. Controls gas valve, igniter, blower, inducer, humidifier
and air cleaner. Features replaceable 3A fuse, 60-minute auto reset
and single-channel flame sense. Includes diagnostic indicator flash
codes.
Unit#2948042
Hot Surface Ignition – Integrated
Replaces single-stage carbide and nitride hot surface ignition systems.
Control module features 3 fan speeds, color-coded thermostat connec-
tion, onboard system diagnostics with LED indicator, and low-voltage
fuse protection. Includes quick-connect wiring harnesses, universal
nitride ignitor and instructions. Operating temperature: -40°F to 176°F
(-40°C to 80°C).
Unit#2498030
Silicon Carbide - Integrated
Controls gas valve, ignitor, two-speed blower motor, inducer, humidifier-
and air cleaner. Features flash code diagnostics, twinning and adjust-
ableblower relay. Includes mounting hole template.
U
Unit#2498019
Dual Purpose
Reduces potential for vibration or shock. Responds to positive, nega-
tive or differential air pressure. Includes 12” L x 1/4” OD flex tubing with
nuts and ferrules. Enclosed diaphragm. Mounts any position except for
upside-down. Rated ambient -40°F to 180°F, max. pressure 1/2 PSI.
Rated 15.0A resistive (noninductive) at 120/240/277V AC; 300 VA at
125V to 277V AC. UL listed, CSA certified.
FURNACE CONTROLS
Order
No.
Operating Temp.
°F
50E47-843 -40 to 175
FURNACE CONTROLS
Delay Sec.
Order Heat Cool
No. On Off On Off
50A55-843 30/45 60/90/120/180 5 45/90
FURNACE CONTROLS
Order
No. Input Voltage
50A65-843 25V AC
FURNACE CONTROL KITS
Order
No.
Input
Volts AC
Dim. In.
H x W x D
50M56U-843 25 7 x 5.25 x 1.25
FURNACE CONTROLS
Order
No.
Operating Temp.
°F
50T35-743 -40 to 176
AIR SWITCHES
Order
No.
Pressure
In. WC
Switch
Action
770-1 0.05-12 SPDT