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Table 28 — EconoMi$er IV Sensor Usage
*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units. As such, these kits may contain parts that will not be needed
for installation.
†CGCDXSEN004A00 is an accessory CO
2
sensor.
**CGCDXASP001A00 is an accessory aspirator box required for duct-mounted applications.
APPLICATION
ECONOMI$ER IV WITH OUTDOOR AIR
DRY BULB SENSOR
ECONOMI$ER IV WITH SINGLE
ENTHALPY SENSOR
Accessories Required Accessories Required
Outdoor Air Dry Bulb None. The outdoor air dry bulb sensor is factory installed. CRTEMPSN002A00*
Differential Dry Bulb CRTEMPSN002A00* (2) CRTEMPSN002A00*
Single Enthalpy HH57AC078 None. The single enthalpy sensor is factory installed.
Differential Enthalpy
HH57AC078
and
CRENTDIF004A00*
CRENTDIF004A00*
CO
2
for DCV Control using a
Wall-Mounted CO
2
Sensor
CGCDXSEN004A00 CGCDXSEN004A00
CO
2
for DCV Control using a
Duct-Mounted CO
2
Sensor
CGCDXSEN004A00†
and
CGCDXASP001A00**
CGCDXSEN004A00†
and
CGCDXASP001A00**
DAMPER
ACTUATOR
PL7
WIRE TIES
DAMPER
ASSEMBLY
WIRE
HARNESS
ECONOMIZER
BLOCK OFF
PL7
OUTSIDE AIR
ENTHALPY
SENSOR
INDOOR AIR
ENTHALPY
SENSOR
OUTDOOR AIR
TEMPERATURE
SENSOR
Fig. 23 — EconoMi$er IV Component Locations (Exploded View)
SAT LOCATION
Fig. 24 — Supply-Air Temperature Sensor Location
LED ON
LED ON
LED ON
LED ON
LED OFF
19
18
LED OFF
LED OFF
LED OFF
17
16
15
14
13
12
11
10
9
40
45
50
55
60
65
70
75
80
85
90
95
100
DEGREES FAHRENHEIT
mA
D
C
B
A
Fig. 25 — Outdoor-Air Temperature Changeover
Set Points