Carrier 58SP0A, Инструкции по установке, запуску, эксплуатации, обслуживанию и техническому обслуживанию

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58SP0A/58SP1A: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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b. When thermometer readings stabilize, subtract return-air
temperature from supply-air temperature to determine air
temperature rise.
NOTE: If the temperature rise is outside this range, first check:
(1.) Gas input for heating operation.
(2.) Derate for altitude if applicable.
(3.) Return and supply ducts for excessive restrictions causing
static pressures greater than 0.50-in. w.c.
(4.) Ensure Comfort/Efficiency SW 1-4 on furnace control is in
OFF=Efficiency position when a bypass humidifier is used,
see Fig. 27 for switch location.
(5.) Make sure proper model plug is installed.
c. Turn thermostat down below room temperature and remove
blower access door.
d. To increase heating airflow, set Comfort/Efficiency SW1-4 of
furnace control to OFF=Efficiency position.
e. Careful not to put tension on any wire connections
f. Repeat steps a through e.
g. When correct input rate and temperature rise is achieved, turn
gas valve ON/OFF switch to OFF.
h. Remove manometer or similar device from gas valve.
i. Reinstall manifold pressure tap plug in gas valve.
j. Turn gas valve ON/OFF switch to ON.
7. Set thermostat heat anticipator.
a. Mechanical thermostat - Set thermostat heat anticipator to match
the amp. draw of the electrical components in the R-W circuit.
Accurate amp. draw readings can be obtained at the wires
normally connected to thermostat subbase terminals, R and W.
The thermostat anticipator should NOT be in the circuit while
measuring current.
(1.) Remove thermostat from subbase or from wall.
(2.) Connect an amp. meter as shown in Fig. 48 across the R and
W subbase terminals or R and W wires at wall.
(3.) Record amp. draw across terminals when furnace is in
heating and after blower starts.
(4.) Set heat anticipator on thermostat per thermostat
instructions and install on subbase or wall.
b. Electronic thermostat: Set cycle rate for 4 cycles per hr.
A96316
Fig. 48 – Amp. Draw Check with Ammeter
8. Adjust blower off delay The blower off delay has 4 adjustable
settings from 90 sec to 180 sec. The blower off delay jumpers are
located on the furnace control board, see Fig. 27 .
To change the blower off delay setting, move the jumper from one
set of pins on the control to the pins used for the selected blower off
delay. Factory off delay setting is 120 sec, see Table 12 .
9. Set Airflow for Air Conditioning-Single Stage and High Stage
Cooling
The ECM blower can be adjusted for a range of airflow for Low
Speed or High Speed cooling. See Table 13 -Air Delivery-CFM
(With Filter).
The cooling airflow is adjusted by turning Setup switches SW2-6,
SW2-7 and SW2-8 either ON or OFF. Select the required airflow
from Fig. 46 .
NOTE:
5.5 ton airflow will truncate at 2200 CFM on applicable models.
For a complete explanation of cooling airflow, refer to the section titled
“Sequence of Operation.”
10. The Continuous Fan airflow selection via Setup switches SW2-3,
SW2-4, SW2-5 is also the switch setting for low-speed cooling
when the furnace is used with a two-speed cooling or heat pump
unit. Refer to Fig. 45 and Fig. 46 and the Adjustments section for
setup switch configurations. This setup feature allows continuous
fan airflow or low-cooling airflow to be adjusted.
The continuous fan speed can be further adjusted at the thermostat
using the Continuous Blower Speed Selection from Thermostat
function. Changing the continuous fan speed at the thermostat
DOES NOT change the low speed cooling airflow selected at the
control board. See the section titled Continuous Blower Speed
Selection from Thermostat in the Sequence of Operation section of
this document.
Check Safety Controls
The flame sensor, gas valve, and pressure switch were all checked in the
Start-up procedure section as part of normal operation.
1. Check Main Limit Switch
This control shuts off combustion system and energizes
air-circulating blower motor, if furnace overheats. By using this
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal injury, death,
and/or property damage.
Reinstall manifold pressure tap plug in gas valve to prevent gas leak.
CAUTION
!
FURNACE OVERHEATING HAZARD
Failure to follow this caution may result in reduced furnace life.
Recheck temperature rise. It must be within limits specified on the
rating plate. Recommended operation is at the mid-point of rise range
or slightly above.
Table 12 – Blower Off Delay Setup Switch
DESIRED HEATING MODE
BLOWER OFF DELAY (SEC.)
SETUP SWITCH
(SW-7 AND -8)
POSITION
SW1-7 SW1-8
90 OFF OFF
120 ON OFF
150 OFF ON
180 ON ON
R Y W G
10 TURNS
THERMOSTAT SUBBASE
TERMINALS WITH
THERMOSTAT REMOVED
(ANITICIPATOR, CLOCK, ETC.,
MUST BE OUT OF CIRCUIT.)
HOOK-AROUND
AMMETER
EXAMPLE:
5.0 AMPS ON AMMETER
10 TURNS AROUND JAWS
=
0.5 AMPS FOR THERMOSTAT
ANTICIPATOR SETTING
FROM UNIT 24-V
CONTROL TERMINALS