Jade Range W7220 用户手册

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页码 12
JADE™ ECONOMIZER MODULE
62-0331—07
10
COMMON INSTALLATION ISSUES AND CONCERNS
Table 3. Installation Issues and Concerns.
Area
Issue or Concern
Possible Cause and Remedy
Configuration
Are the old sensors in the unit 
(C7400A, C7150 or C7232) 
compatible with the economizer 
controller? 
No, the C7400A and C7150 sensors are not compatible with the W7220. The enthalpy sensor 
for the W7220 is the C7400S. The Mixed Air or Outdoor air dry bulb sensors are the C7250A. 
The C7232 CO
2
 sensor is compatible with the W7220.
The unit has a W7459 
economizer and black motor. 
Do I need to change the motor? 
If you have a W7459 economizer with a M7415 motor you will need to change to a M7215 
motor. The W7220 has a 2 to 10 Vdc out to the motor, so you will need a M7215 motor. The 
M7215 motors are used with the W7212 economizers. So if you have one of these units, you 
will not have to change the motor. 
Wiring
I have 4 terminals on my 
actuator and the wiring only 
shows 3 wires. 
The economizer 24 Vac COM can be wired to the Honeywell actuator common (
 or 
TR1). The actuators have internal ground circuits. 
There is an Earth Ground 
terminal. Do I need to wire to 
earth ground?
Yes, the economizer must be wired to earth ground. 
What are the part numbers of 
the 2 and 6 pin side 
connectors?
The 2-pin connectors are Honeywell part number 50048926-001 and the 6-pin connectors 
are Honeywell part number 50048926-002. Both are available in accessory bags of 20 each.