Emerson White-Rodgers 50M56-820 Directives D'installation

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS MODULE COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
The 50M56-820 is an Integrated Furnace Control for aftermarket
service of Trane Single-Stage furnace products with PSC blower
motor. The kit includes a 120V Silicon Nitride Igniter and can
service systems with both 80V and 120V HSI Ignition.
The kit also includes a cover to replace both covered and
non-covered controls.
ELECTRICAL RATINGS [@ 77°F (25°C)]:
Input Voltage: 25 VAC 50/60 Hz
Max. Input Current @ 30 VAC: 500 mA
Relay Load Ratings:
Valve Relay: 1.5 A @ 25 VAC 60 Hz 0.6 pf
Ignitor Relay: 6.0 A @ 120 VAC 60 Hz (resistive)
Inducer Relay: 2.8 FLA–3.5 LRA @ 120 VAC
Circulator Relay: 14.5 FLA–25.0 LRA @ 120 VAC
Flame Current Requirements:
Min current to insure flame detection: 1 μa DC*
Max current for non-detection: 0.1 μa DC*
Max allowable leakage resistance: 100 M ohms
*Measured with a DC microammeter in series with the flame
probe lead
OPERATING TEMPERATURE RANGE:
-40° to 176°F (-40° to 80°C)
HUMIDITY RANGE:
5% to 93% relative humidity (non-condensing)
MOUNTING:
Surface mount multipoise
TIMING SPECS: (@ 60 Hz)
Flame Establishing Time:
Flame Failure Response Time:
GASES APPROVED: Natural, Manufactured, Mixed, Liquid
Petroleum, and LP Gas Air Mixtures are all approved for use.
maximum
0.8 sec
2.0 sec
emerson.com/white-rodgers
50M56-820
Integrated Single Stage
Hot Surface Ignition Control
INSTALLATION INSTRUCTIONS
Parts included:
• 50M56-820 Integrated Furnace Control
• 789A-820 Ignitor Kit (120V HSI Ignitor,
Mounting Bracket, 3 Screws)
• Ignitor Adapter Harness for Older 80V HSI Units
• Cover
• 4 Standoffs
• 4 Screws
• 2 Wire Ties
• Installation Instructions
• 4 Wiring Extensions
CAUTION
!
Risk of Electric Shock.
Disconnect electric power
to system until installation
is complete. Do not use
on circuit exceeding
specified voltage. Higher
voltage will damage the
module and could cause
shock or fire hazard.
Not intended for use in
locations where it may
come in contact with
water.
May cause flame rollout.
Shut off main gas to
heating
installation is complete.
DESCRIPTION
SPECIFICATIONS
system until
PART NO. 37-7808001
2004