32615
TEST
LED
1
SW1
BLOWER
OFF DELAY
P5
HUM C W Y R G
SEC-1 SEC-2
3
COOL SPARE-1
HEAT SPARE-2
9404
L2
PR2
COM
P3
P2
PR1L1
HUM COM
24V
W Y R G
LINE VOLTAGE
L1 PR1
120 VAC
2 1
HS1
PL2
IND
PL3
1
2
3
LINE
VOLTAGE
NEUTRAL
COM
PR2
L2
BLOWER MOTOR
COOL
HEAT
SPARE-1
SPARE-2
EAC-1
EAC-2
CONTROL POWER - 24VAC,
465 mA, 60Hz.
ANSI Z21.20 AUTOMATIC IGNITION SYSTEM
F
U
S
E
3
A
SEC-1 SEC-2
TEST
STATUS
PL1
STATUS LED CODE:
(1) OFF
(2) CONTINUOUSLY ON
(3) RAPID FLASHING
-CHECK FOR 115 VAC AT L1&L2, ALSO 24VAC AT SEC-1 & SEC-2
-POWER IS O.K.
-LINE VOLTAGE POLARITY REVERSED, IF TWINNED, LOW
VOLTAGE POLARITY MAY BE OUT OF PHASE.
NOTE: SEE SEPARATE SERVICE LABEL FOR ADDITIONAL STATUS CODES.
TO INITIATE COMPONENT TEST SEQUENCE, DISCONNECT
THERMOSTAT CONNECTIONS OR TURN OFF AND
BRIEFLY SHORT (TEST) TERMINAL TO (C) TERMINAL.
STATUS LED WILL FLASH CODE AND THEN TURN ON THE
INDUCER MOTOR, HSI, BLOWER HEAT, BLOWER-COOL
RELAYS FOR APPROXIMATELY 10 TO 15 SECONDS.
INTEGRATED FURNACE CONTROL
HUM
C W Y R G
320791-101
REV. C
BLOWER-OFF DELAY
SWITCH SETTING
225 180 135 90
UNITED
TECHNOLOGIES
ELECTRONIC
CONTROLS
HUNTINGTON, IN 46750
MODEL HK42FZ004
FOR USE WITH ALL GASES
1012-940
3 2 1
6 5 4
9 8 7
Model number nomenclature
58RAV 050
Downflow/Horizontal
Induced-Combustion
Gas-Fired Furnace
Input Capacity
050 — 46,000 Btuh
070 — 69,000 Btuh
095 — 92,000 Btuh
115 — 115,000 Btuh
135 — 135,000 Btuh
131 08
Cooling Size (Airflow)
(400 CFM per 12,000 Btuh)
08 — 800 CFM
12 — 1200 CFM
16 — 1600 CFM
20 — 2000 CFM
Series Number
MEETS DOE RESIDENTIAL CONSERVATION SERVICES
PROGRAM STANDARDS.
Before purchasing this appliance, read important
energy cost and efficiency information available
from your retailer.
A92074
A94151
A89217
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