36
EconoMi$er
®
IV Standard Sensors
A functional view of the EconoMi$er is shown in Fig. 67. Typ-
ical settings, sensor ranges, and jumper positions are also
shown. An EconoMi$er IV simulator program is available to
help with EconoMi$er IV training and troubleshooting.
OUTDOOR AIR TEMPERATURE (OAT) SENSOR
The outdoor air temperature sensor (HH57AC074) is a 10 to
20 mA device used to measure the outdoor-air temperature.
The outdoor-air temperature is used to determine when the
EconoMi$er IV can be used for free cooling. The sensor is fac-
tory-installed on the EconoMi$er IV in the outdoor airstream.
See Fig. 68. The operating range of temperature measurement
is 40°F to 100°F (4°C to 38°C).
Fig. 67 — EconoMi$er IV Functional View
Fig. 68 — Supply Air Sensor Location
SUPPLY AIR TEMPERATURE (SAT) SENSOR
The supply air temperature sensor is a 3 K thermistor located at
the inlet of the indoor fan. See Fig. 68. This sensor is factory
installed. The operating range of temperature measurement is
0°F to 158°F (-18°C to 70°C). See Table 66 for sensor tem-
perature/resistance values.
The temperature sensor looks like an eyelet terminal with wires
running to it. The sensor is located in the “crimp end” and is
sealed from moisture.
OUTDOOR AIR LOCKOUT SENSOR
The EconoMi$er IV is equipped with an ambient temperature
lockout switch located in the outdoor airstream which is used
to lock out the compressors below a 42°F (6°C) ambient tem-
perature. See Fig. 60.
EconoMi$er IV Control Modes
Determine the EconoMi$er IV control mode before set up of
the control. Some modes of operation may require different
sensors. The EconoMi$er IV is supplied from the factory with
a supply-air temperature sensor and an outdoor-air temperature
sensor. This allows for operation of the EconoMi$er IV with
outdoor air dry bulb changeover control. Additional accesso-
ries can be added to allow for different types of changeover
control and operation of the EconoMi$er IV and unit.
OUTDOOR DRY BULB CHANGEOVER
The standard controller is shipped from the factory configured
for outdoor dry bulb changeover control. The outdoor air and
supply air temperature sensors are included as standard. For
this control mode, the outdoor temperature is compared to an
adjustable set point selected on the control. If the outdoor-air
temperature is above the set point, the EconoMi$er IV will ad-
just the outside air dampers to minimum position. If the out-
door-air temperature is below the set point, the position of the
outside air dampers will be controlled to provided free cooling
using outdoor air. When in this mode, the LED next to the free
cooling set point potentiometer will be on. The changeover
temperature set point is controlled by the free cooling set point
potentiometer located on the control. See Fig. 69. The scale on
the potentiometer is A, B, C, and D. See Fig. 70 for the corre-
sponding temperature changeover values and Fig. 71 for damp-
er leakage.
Fig. 69 — EconoMi$er IV Controller Potentiometer
and LED Locations
SUPPLY
AIR TEMPERATURE
SENSOR MOUNTING
LOCATION
SUPPLY AIR
TEMPERATURE
SENSOR
(SEALED
INSIDE CRIMP
END)
IMPORTANT: The optional EconoMi$er2 does not
include a controller. The EconoMi$er2 is operated by a
4 to 20 mA signal from an existing field-supplied control-
ler. See Fig. 62 for wiring information.
Содержание WeatherMaster 50HC04
Страница 32: ...32 Fig 63 RTU Open Overlay for Economizer Wiring ...
Страница 33: ...33 Fig 64 VFD Overlay for W2770 Controller Wiring ...
Страница 85: ...85 Fig B 50HC A04 A06 PAC Control Diagram 208 1 60 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 86: ...86 Fig C 50HC A07 PAC Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 89: ...89 Fig F 50HC D08 D09 PAC Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 90: ...90 Fig G 50HC D11 PAC Control Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 91: ...91 Fig H 50HC D12 PAC Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 92: ...92 Fig I 50HC D14 PAC Control Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 93: ...93 Fig J 50HC A04 A06 PAC Power Diagram 208 230 1 60 APPENDIX D WIRING DIAGRAMS ...
Страница 94: ...94 Fig K 50HC A04 A06 PAC Power Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 95: ...95 Fig L 50HC A07 PAC Power Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 98: ...98 Fig O 50HC D07 PAC Power Diagram 575 3 60 6 Ton 2 Stage with Dehumidification APPENDIX D WIRING DIAGRAMS ...
Страница 99: ...99 Fig P 50HC D08 D09 PAC Power Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 100: ...100 Fig Q 50HC D11 PAC Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 101: ...101 Fig R 50HC D11 PAC Power Diagram 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 102: ...102 Fig S 50HC D12 PAC Power Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 103: ...103 Fig T 50HC D14 PAC Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 104: ...104 Fig U 50HC D14 PAC Power Diagram 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 109: ...109 Fig Z 50HC D12 PAC Control Diagram 230 460 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 110: ...110 Fig AA 50HC D14 PAC Control Diagram 230 460 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 111: ...111 Fig AB 50HC A04 A06 PAC Power Diagram 208 230 1 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 112: ...112 Fig AC 50HC A04 A06 PAC Power Diagram 208 230 460 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 113: ...113 Fig AD 50HC A04 A06 PAC Power Diagram 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 114: ...114 Fig AE 50HC A07 PAC Power Diagram 208 230 460 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 115: ...115 Fig AF 50HC A07 PAC Power Diagram 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 116: ...116 Fig AG 50HC D08 D09 PAC Power Diagram 208 230 460 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 117: ...117 Fig AH 50HC D08 D09 PAC Power Diagram 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 118: ...118 Fig AI 50HC D11 PAC Power Diagram 208 230 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 119: ...119 Fig AJ 50HC D11 PAC Power Diagram 460 3 60 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 121: ...121 Fig AL 50HC D14 PAC Power Diagram 208 230 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 122: ...122 Fig AM 50HC D14 PAC Power Diagram 460 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 123: ...123 Fig AN 50HC D14 PAC Power Diagram 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...
Страница 124: ...124 Fig AO PremierLink System A04 A06 Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 125: ...125 Fig AP RTU Open System Control A04 A06 Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 126: ...126 Fig AQ PremierLink System A07 D14 Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 127: ...127 Fig AR RTU Open A07 D14 Wiring Diagram APPENDIX D WIRING DIAGRAMS ...