
49
Fig. 61 — Supply Air Sensor Location
Fig. 62 — Outside Air Temperature Changeover Setpoints
OUTDOOR AIR LOCKOUT SENSOR
The EconoMi$er IV system is equipped with an ambient tempera-
ture lockout switch located in the outdoor airstream which is used
to lock out the compressors below a 42°F (6°C) ambient tempera-
ture. (See Fig. 53.)
ECONOMI$ER IV CONTROL MODES
Determine the EconoMi$er IV control mode before set up of the
control. Some modes of operation may require different sensors.
(See Table 21.) The EconoMi$er IV system is supplied from the
factory with a supply-air temperature sensor and an outdoor-air
temperature sensor. This allows for operation of the EconoMi$er
IV system with outdoor air dry bulb changeover control. Addition-
al accessories can be added to allow for different types of change-
over control and operation of the EconoMi$er IV system and unit.
* CRENTDIF004A00 and CRTEMPSN002A00 accessories are
u
sed on
many different base
u
nits. As s
u
ch, these kits may contain parts that will
not be needed for installation.
† 33ZCSENCO2 is an accessory CO
2
sensor.
** 33ZCASPCO2 is an accessory aspirator box re
qu
ired for d
u
ct-
mo
u
nted applications.
†† CRCBDIOX005A00 is an accessory that contains both 33ZCSEN-
CO2 and 33ZCASPCO2 accessories.
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 setpoint, the EconoMi$er IV system will adjust the out-
side air dampers to minimum position. If the outdoor-air tempera-
ture is below the setpoint, the position of the outside air dampers
will be controlled to provided free cooling using outdoor air.
When in this mode, the LED next to the free cooling setpoint po-
tentiometer will be on. The changeover temperature setpoint is
controlled by the free cooling setpoint potentiometer located on
the control. (See Fig. 63.) The scale on the potentiometer is A, B,
C, and D. See Fig. 64 for the corresponding temperature change-
over values.
Fig. 63 — EconoMi$er IV Controller Potentiometer and
LED Locations
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 controller. See
Fig. 55 for wiring information.
SUPPLY
AIR TEMPERATURE
SENSOR MOUNTING
LOCATION
SUPPLY AIR
TEMPERATURE
SENSOR
(SEALED
INSIDE CRIMP
END)
LED ON
LED ON
LED ON
LED ON
LED OFF
19
1
8
LED OFF
LED OFF
LED OFF
17
16
15
14
1
3
12
11
10
9
40
45
50
55
60
65
70
75
8
0
8
5
90
95
100
DEGREE
S
FAHRENHEIT
mA
D
C
B
A
Table 21 — EconoMi$er IV Sensor Usage
APPLICATION
ECONOMI$ER IV WITH OUTDOOR-AIR
DRY BULB SENSOR
Accessories Required
Outdoor Air
Dry Bulb
None. The outdoor air dry bulb sensor
is factory installed.
Differential
Dry Bulb
CRTEMPSN002A00*
Single Enthalpy
HH57AC078
Differential Enthalpy
HH57AC078 and CRENTDIF004A00*
CO
2
for DCV
Control using a
Wall-Mounted
CO
2
Sensor
33ZCSENCO2
CO
2
for DCV
Control using a
Duct-Mounted
CO
2
Sensor
33ZCSENCO2† and
33ZCASPCO2**
OR CRCBDIOX005A00††
Содержание 581J 17-28 Series
Страница 18: ...18 COOLING CHARGING CHARTS Fig 21 Cooling Charging Chart 15 Ton ...
Страница 19: ...19 Fig 22 Cooling Charging Chart 17 5 Ton ...
Страница 20: ...20 Fig 23 Cooling Charging Chart 20 Ton ...
Страница 21: ...21 Fig 24 Cooling Charging Chart 25 Ton ...
Страница 36: ...36 Fig 47 Unit Control Box IGC Location IGC Board IGC Board Side view Front view ...
Страница 39: ...39 Fig 50 Integrated Gas Control IGC Board RED LED STATUS ...
Страница 45: ...45 Fig 56 RTU Open Overlay for Economizer Wiring ...
Страница 46: ...46 Fig 57 VFD Overlay for W2770 Controller Wiring ...
Страница 84: ...84 Fig B 581J 17 28 Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 85: ...85 Fig C 581J 17 28 Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 86: ...86 Fig D 581J 17 28 Power Diagram 460 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 87: ...87 Fig E 581J 17 28 Power Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 88: ...88 Fig F 581J 17 28 Control Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 89: ...89 Fig G 581J 17 28 Power Diagram 208 230 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 90: ...90 Fig H 581J 17 28 Power Diagram 460 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 91: ...91 Fig I 581J 17 28 Power Diagram 575 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 92: ...92 Fig J RTU OPEN Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 93: ...93 Fig K RTU OPEN Wiring Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...