Prime Condensate Trap With Water; Purge Gas Lines; Furnace Setup Switch Description; Blower Off Delay Setup Switch Position - Carrier 58MVP Installation, Start-Up, And Operating Instructions Manual

Table9--FurnaceSetupSwitchDescription
SETUP SWITCH NORMAL DESCRIPTION
SWITCH NO. NAME POSITION OF USE
Turn ON to retrieve up to 7 stored status codes for trouNeshooting
SW14 Status Code Recovery OFF
assistance when R thermostat lead is disconnected.
Mows 2-stage operation with a single stage thermostat
Turn ON when using 2 stage thermostat to allow Low Heat opera-
SWI-2 Adaptive Heat Mode OFF
tion when R to W/W1 closes and High Heat operation when R to
W/W1 and W2 close.
Turn ON to increase Low Heat airflow by 18 percent This compen-
Low Heat
8W1_3 Rise Adjust OFF sates for increased return air temperature caused with bypass hu-
midifier
Turn ON to decrease Low Heat airflow by 7 percent and High Heat
SWI_4 Comfort/Efficiency Adjustment ON airflow 8 percent for maximum comfort. On 040 unit will decrease
Low-Heat Airflow 11 percent and High-Heat Airflow 10 percent.
8W1_5 CFM per ton adjust OFF Turn ON for 400 CFM per ton. Turn OFF for 350 CFM per ton
Turn ON to initiate Component Self-Test for troubleshooting assis-
8W1_¢ Component Self-Test OFF tance when R thermostat lead is disconnected
Turn OFF when Self-Test is completed.
Control blower Off Delay time Used in conjunction with SW1-8. See
8W1_7 Blower OFF delay ON or OFF
Table 10.
Control blower Off Delay time Used in conjunction with SW1-7. See
8W1_8 Blower OFF delay ON or OFF
Table 10.
Table 10--Blower Off Delay Setup Switch
Position
DESIRED HEATBNG
MODE BLOWER
OFF DELAY (SEC}
90
120
t50
180
SETUP SWITCH (SW1o7 AND SWlo8} PosmoN
SW1-7 SW1-8
OFF OFF
ON OFF
OFF ON
ON ON
Step 3--Prime Condensate Trap With Water
UNIT MAY NOT OPERATE
Failure to %llow this caution may result in intermittent unit
operation oi" per%m_ance satisfaction
Condensate trap must be PRIMED or proper draining may not
occur. The condensate trap has 2 internal chambers which can
ONLY be primed by pouring water into the inducer &ain side
of condensate trap.
1, Remove upper inducer housing drain connection cap (See
Fig. 52,)
2, (onnect field-supplied 1/2=in ID robe to upper inducer
housing &ain connection
3. Insert field=supplied funnel into robe.
4. Pour 1 quart of water into _kmnelimbe Water should mn
through inducer housing, overl]ll condensate trap, and flow
into open field drain. (See Fig. 53)
5. Remove t:imnel and robe fi'om inducer housing and replace
&ain connection cap and clamp.
Step 4--Purge Gas Lines
If not previously done_ purge the lines after all connections have
been made and check %r leaks.
3g
FIRE AND EXPLOSION HAZARD
Failure to %llow this warning could result in a fire, explosion,
personal inj_/ry, or death
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 %r the detection of
leaks to check all connections.
Step 5--Sequence of Operation
I
[TNIT MAY NOT OPERATE
Failure to %ltow this caution may result in intem_ittent unit
operation,
Furnace cmmoi must be grounded [br proper operation, or
control will tock out. (ontrol is grounded through
green yellow wire routed to gas valve and burner box screw
Using schematic diagram, %llow sequence of operation through
different modes (See Fig. 3I.) Read and follow wiring diagram
carefidly.
NOTE: If a power interruption occurs during a call for heat
(WiWI or W Wl=and-W2), the control will start a 90-second
blower-only ON period two seconds afier power is restored, if the
thermostat is still calling for gas heating. The amber LED light wilt
flash code 12 during the 90=second period, after which the LED
will be ON continuous, as long as no fitults are detected. After the
90=second period, the _./rnace will respond to the thermostat
normally
The blower door must be installed %r power to be conducted
through the blower door interlock switch ILK to the t'umace
control (PU, tIansfom_er TRAN, inducer motor IDM, blower
motor BLWM, hot=sur_hce igniter HSI, and gas valve GV.
SrNGLE=STAGE THERMOSTAT AND TWO=STAGE
HEATING (ADAPTIVE MODE)
See Fig. 28 or 6I %r thermostat connections
NOTE: Low-heat=only switch, SWl-2, selects either the low-
heat=only operation mode when ON, (see item 2 below) or
adaptive heating mode when OFF, in response to a call fbr heat.
(See Fig 32) When the W2 thermostat terminal is energized, it
will always cause l',igl'>heat operation when the R to W circuit is