39
Filter
Clips
Aluminum
Filter
A09704
Fig. 35 -- Filter Installation (See through view)
Bottom
filter rack
Screw
(Note 4 and 5)
RIGHT SIDE
Evaporator
Coil
Top filter
rack
BENT COIL
Bottom
filter rack
Top filter
rack
Evaporator
Coil
STRAIGHT COIL
A09714
Fig. 36 -- Indoor Coil with Filter Rack
CONFIGURATION
Economizer Standard Sensors
OUTDOOR AIR TEMPERATURE (OAT) SENSOR—
The
outdoor air temperature sensor (HH57AC080) is a 10 to 20mA
device used to measure the outdoor--air temperature. The outdoor--air
temperature is used to determine when the Economizer can be used
for free cooling. The operating range of temperature measurement is
40 to 100
_
F (4.4 to 37.8
_
C). The sensor has 8 selectable temperature
changeover setpoints. The temperature changeover is set using 3 dip
switches on the sensor. The ABCD potentiometer on the controller
should be set to the “D” position. See Fig. 39.
SUPPLY AIR TEMPERATURE (SAT) SENSOR—
The supply
air temperature sensor is a 3 K
Ω
thermistor located at the inlet of the
indoor fan. See Fig. 37. The operating range of temperature
measurement is 0
_
to 158
_
F (--17.8
_
to 70
_
C). See Table 15 for
sensor temperature/resistance values. The temperature sensor looks
like an eyelet terminal with wires running to it. The sensor is located
in the “crimp end” and is sealed from moisture.
Table 15 – Supply Air Sensor Temperature/Resistance Values
TEMPERATURE
(
_
F)
CELSIUS (
_
C)
RESISTANCE (OHMS)
---22
---30
53,010
---4
---20
29,091
14
---10
16,590
32
0
9,795
50
10
5,970
68
20
3,747
77
25
3,000
86
30
2,416
104
40
1,597
122
50
1,080
140
60
746
158
70
525
Indoor
Blower
Supply Air Temperature
Sensor (SAT)
A09707
Fig. 37 -- SAT Location
604D
--
--
A
Summary of Contents for LEGACY 604D-A
Page 4: ...4 A09471 Fig 2 604D A24 36 Unit Dimensions 604D A ...
Page 5: ...5 A09472 Fig 3 604D A42 60 Unit Dimensions 604D A ...
Page 12: ...12 A10197 Fig 11 Connection Wiring Schematics 208 230 1 60 604D A ...
Page 13: ...13 A10197 Fig 11 Cont Ladder Wiring Schematics 208 230 1 60 604D A ...
Page 14: ...14 A10194 Fig 12 Connection Wiring Schematics 208 230 3 60 604D A ...
Page 15: ...15 A10194 Fig 12 Cont Ladder Wiring Schematics 208 230 3 60 604D A ...
Page 16: ...16 A10195 Fig 13 Connection Wiring Diagram 460 3 60 604D A ...
Page 17: ...17 A10195 Fig 13 Cont Ladder Wiring Diagram 460 3 60 604D A ...
Page 25: ...25 A09070 Fig 17 Cooling Charging Table Subcooling 604D A ...
Page 43: ...43 A10059 Fig 44 Economizer Wiring Diagram 604D A ...
Page 45: ...45 A10200 Fig 45 Cont Ladder Wiring Diagram 230 3 604D A ...
Page 46: ...46 A10199 Fig 46 Connection Wiring Diagram 460 3 604D A ...
Page 47: ...47 A10199 Fig 46 Cont Ladder Wiring Diagram 460 3 604D A ...
