Manual 2100-344
Page
14
FAN BLADE SETTINGS
Shown in Figure 12 are the correct fan blade setting
dimensions for proper air delivery across the outdoor coil.
Any service work requiring removal or adjustment in the fan
and/or motor area will require that the dimensions in
Figure 12 be checked and blade adjusted in or out on the
motor shaft accordingly.
SOLID STATE HEAT PUMP CONTROL
TROUBLESHOOTING PROCEDURE
1. Turn on AC power supply to indoor and outdoor units.
2. Turn thermostat blower switch to fan on. The indoor
blower should start. (If it doesn’t, troubleshoot indoor
unit and correct problem.)
3. Turn thermostat blower switch to Auto position. Indoor
blower should stop.
4. Set system switch to heat or cool. Adjust thermostat to
call for heat or cool. The indoor blower, compressor,
and outdoor fan should start.
NOTE: If there is no power to 24 volt transformer, the
compressor and outdoor fan motor will not start
for 5 minutes. This is because of the compressor
short cycle protection.
TABLE 10
The above suction line temperatures are based upon 80° F
dry bulb/67° F wet bulb (50% RH) temperature and rated
airflow across the evaporator during cooling cycle.
l
e
d
o
M
d
e
t
a
R
w
o
l
f
r
i
A
F
e
e
r
g
e
D
5
9
D
O
e
r
u
t
a
r
e
p
m
e
T
F
e
e
r
g
e
D
2
8
D
O
e
r
u
t
a
r
e
p
m
e
T
4
2
2
1
H
P
0
3
2
1
H
P
6
3
2
1
H
P
0
0
8
0
0
0
1
0
0
1
1
6
5
-
6
5
6
5
-
6
5
2
5
-
0
5
2
6
-
1
6
0
6
-
8
5
4
5
-
2
5
SERVICE AND TROUBLESHOOTING
SERVICE HINTS
1. Caution homeowner to maintain clean air filters at all
times. Also, not to needlessly close off supply and
return air registers. This reduces air flow through the
system which shortens equipment service life as well as
increasing operating costs.
2. Switching to heating cycle at 75° F or higher outside
temperature may cause a nuisance trip of the manual
reset high pressure switch.
3. The heat pump wall thermostats perform multiple
functions. Be sure that all function switches are
correctly set for the desired operating mode before
trying to diagnose any reported service problems.
4. Check all power fuses or circuit breakers to be sure that
they are the correct rating.
5. Periodic cleaning of the outdoor coil to permit full and
unrestricted airflow circulation is essential.
PRESSURE SERVICE PORTS
High and low pressure service ports are installed on all units
so that the system operating pressures can be observed.
Pressure tables can be found in Tables 11 and 12 in this
manual covering all models on both cooling and heating
cycles. It is imperative to match the correct pressure table to
the unit by model number.
REFRIGERANT CHARGE
The correct system R-22 charge is shown on the unit rating
plate. Optimum unit performance will occur with a
refrigerant charge resulting in a suction line temperature
(6” from compressor) as shown in Table 10.
FIGURE 12
FAN BLADE SETTING DIMENSIONS
MIS-1190
l
e
d
o
M
A
n
o
i
s
n
e
m
i
D
4
2
2
1
H
P
0
3
2
1
H
P
6
3
2
1
H
P
"
0
0
.
1
"
5
7
.
"
5
7
.
Содержание PH1224
Страница 15: ...Manual 2100 344 Page 13 FIGURE 11 HEAT PUMP CONTROL BOARD MIS 1191...
Страница 21: ...Manual 2100 344 Page 19 Wiring Diagram 4098 123 printed from CAD to get size needed...
Страница 22: ...Manual 2100 344 Page 20 Wiring Diagram 4098 124 printed from CAD to get size needed...
Страница 23: ...Manual 2100 344 Page 21 Wiring Diagram 4098 211 printed from CAD to get size needed...
