56
FOR OCCUPANCY CONTROL
REPLACE JUMPER WITH
FIELD-SUPPLIED TIME CLOCK
LEGEND
DCV—
Demand Controlled Ventilation
IAQ —
Indoor Air Quality
LA —
Low Ambient Lockout Device
OAT —
Outdoor-Air Temperature
POT —
Potentiometer
RAT —
Return-Air Temperature
Potentiometer Defaults Settings:
Power Exhaust Middle
Minimum Pos.
Fully Closed
DCV Max.
Middle
DCV Set
Middle
Enthalpy
C Setting
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 transformer 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.
8
7
C06028
Fig. 72 -- EconoMi$er IV Wiring
4
3
5
2
8
6
7
1
10
11
9
12
PINK
VIOLET
BLACK
BLUE
YELL
O
W
NOTE 1
NOTE 3
RUN
500 OHM
RESISTOR
50HJ540573
ACTUATOR
ASSEMBLY
RED
WHITE
ECONOMISER2 PLUG
DIRECT DRIVE
ACTUATOR
4-20mA SIGNAL
OAT SENSOR
4-20 mA
TO J9 ON
PremierLink
BOARD
24 VAC
TRANSFORMER
GROUND
NOTES:
1. Switch on actuator must be in run position for economizer to operate.
2. PremierLink™ control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sen
sor or HH57A077 enthalpy sensor.
3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.
C08310
Fig. 73 -- EconoMi$er2 with 4 to 20 mA Control Wiring
48TC
Summary of Contents for WeatherMaker 48TC*A04
Page 10: ...10 COOLING CHARGING CHARTS cont C08204 C08228 Fig 12 cont Cooling Charging Charts 48TC ...
Page 11: ...11 COOLING CHARGING CHARTS cont C08229 C08437 Fig 12 cont Cooling Charging Charts 48TC ...
Page 12: ...12 COOLING CHARGING CHARTS cont C08438 C08439 Fig 12 cont Cooling Charging Charts 48TC ...
Page 35: ...35 C08248 Fig 42 PremierLink Wiring Schematic 48TC ...
Page 43: ...43 C07129 Fig 59 RTU MP Multi Protocol Control Board 48TC ...
Page 44: ...44 44 C08458 Fig 60 RTU MP System Control Wiring Diagram 48TC ...
Page 64: ...64 C08308 Fig 83 48TC Typical Unit Wiring Diagram Power A06 208 230 3 60 48TC ...
Page 65: ...65 C08317 Fig 84 48TC Unit Wiring Diagram Control A06 48TC ...