Carrier WeatherMaster Puron 48HC D17 Service And Maintenance Instructions page 48

LEGEND
DCV — Demand Controlled Ventilation
IAQ — Indoor Air Quality
LA — Low Ambient Lockout Device
OAT — Outdoor Air Temperature
POT — Potentiometer
RAT — Return Air Temperature
RUN
DIRECT DRIVE
ACTUATOR
NOTES:
1. Switch on actuator must be in run position for economizer to operate.
2. PremierLink™ control requires that the standard 50HJ540569 out-
side-air sensor be replaced by either the CROASENR001A00 dry
bulb sensor or HH57A077 enthalpy sensor.
FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
FIELD-SUPPLIED TIME CLOCK
8
7
Fig. 59 — EconoMi$er IV Wiring
500 OHM
RESISTOR
ORANGE
Fig. 60 — EconoMi$er2 with 4 to 20 mA Control Wiring
Potentiometer
Power Exhaust
Minimum Pos.
DCV Max.
DCV Set
Enthalpy
NOTES:
1. 620 ohm, 1 watt 5% resistor should be removed only when using
differential enthalpy or dry bulb.
2. If a separate field-supplied 24 v transformer is used for the IAQ
sensor power supply, it cannot have the secondary of the trans-
former grounded.
3. For field-installed remote minimum position POT, remove black
wire jumper between P and P1 and set control minimum position
POT to the minimum position.
VIOLET
PINK
OAT SENSOR
4-20mA SIGNAL
3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a
harness with 500-ohm resistor.
48
Defaults Settings:
Middle
Fully Closed
Middle
Middle
C Setting
BLACK
4
TRANSFORMER
GROUND
3
5
BLUE
2
8
6
7
ACTULATOR
RED
FEEDBACK
1
(2-10VDC)
10
11
9
ACTULATOR
WHITE
CONTROL
12
(4-20mA)
ECONOMI$ER2 PLUG