Carrier 59TP6B, Инструкции по установке, запуску, эксплуатации, обслуживанию и техническому обслуживанию

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82
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury
death, and/or property damage.
Never purge a gas line into a combustion chamber. Never test
for gas leaks with an open flame. Use a commercially available
soap solution made specifically for the detection of leaks to
check all connections. A fire or explosion may result causing
property damage, personal injury or loss of life.
!
WARNING
14. Check for gas leaks with a commercially available soap so-
lution made specifically for the detection of leaks.
15. Turn gas on at electric switch on gas valve and at external
shut-off or meter
16. Turn power on at external disconnect, fuse or circuit break-
er.
17. Run the furnace through two complete heating cycles to
check for proper operation
18. Install control door when complete.
2-1/2-in.
(64.4)
1-1/4-in.
(31.8)
A11405
Fig. 69 -- Igniter Position -- Top View
2 ï in.
2.5 mm
3/8 ï in.
3/16 ï in.
+0.8
ï 1.5 mm
50 mm
9.6 mm
4.6 mm
1/10 ï in.
+ 1/32
ï 1/16 ï in.
L12F041
Fig. 70 -- Igniter Position -- Side View
Servicing Hot Surface Igniter
The igniter does NOT require annual inspection. Check igniter
resistance before removal. Refer to
Fig.
69, 70 and 68.
1. Turn off gas and electrical supplies to furnace.
2. Remove control door.
3. Disconnect igniter wire connection.
4. Check igniter resistance. Igniter resistance is affected by
temperature. Only check resistance when the igniter is at
room temperature.
a. Using an ohm meter, check resistance across both igniter
leads in connector.
b. Cold reading should be between 40 ohms and 70 ohms.
5. Remove igniter assembly.
a. Using a 1/4--in. driver, remove the two screws securing the
igniter mounting bracket to the burner assembly See
Fig.
68 .
b. Carefully withdraw the igniter and bracket assembly
through the front of the burner assembly without striking
the igniter on surrounding parts.
c. Inspect igniter for signs of damage or failure.
d. If replacement is required, remove the screw that secures
the igniter on igniter bracket and remove the igniter.
6. To replace igniter and bracket assembly, reverse items 5a
through 5d.
7. Reconnect igniter harness to the igniter, dressing the igniter
wires to ensure there is no tension on the igniter itself. See
Fig. 68.
8. Turn on gas and electrical supplies to furnace.
9. Verify igniter operation by initiating control board self--test
feature or by cycling thermostat.
10. Replace control door.
Flushing Collector Box and Drainage System
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
Turn off the gas and electrical supplies to the furnace and
install lockout tag before performing any maintenance or
service. Follow the operating instructions on the label
attached to the furnace.
!
WARNING
1. Turn off gas and electrical supplies to furnace.
2. Remove control door.
3. Disconnect pressure switch tube from pressure switch port.
NOTE:
Ensure the pressure switch tube disconnected from the
pressure switch is higher than the collector box opening or water
will flow out of tube.
4. Remove the collector box plug from the top port on the up-
per corner of the collector box. See
Fig.
60.
5. Attach a funnel with a flexible tube to port on the collector
box.
6. Flush inside of collector box with water until discharge wa-
ter from condensate trap is clean and runs freely.
7. Repeat steps 4 thru 6 with bottom plug on upper corner of
collector box.
8. Remove the pressure switch tube from the collector box.
NOTE : Do NOT blow into tube with tube connected to the
pressure switch.
9. Clean pressure switch port on collect box with a small wire.
Shake any water out of pressure switch tube.
10. Reconnect tube to pressure switch and pressure switch port.
11. Remove the relief tube from the port on the collector box
and the trap.
12. Clean the relief port on collect box and the trap with a small
wire. Shake any water out of the tube.
13. Reconnect relief tube to trap and collector box ports.
Cleaning Condensate Drain and Trap
NOTE
: If the condensate trap is removed, a new gasket between
the trap and collector box is required. Verify a condensate trap