background image

24

Relative Humidity

5% to 95% RH non-condensing
ECONOMIZER MODULE WIRING DETAILS 
Use Fig. 44 and Tables and to locate the wiring terminals for

the economizer module.

NOTE: The four terminal blocks are removable. Slide out each

terminal block, wire it, and then slide it back into place.

Fig. 44 — W7220 Wiring Terminals

*Sylk is a trademark of Honeywell International Inc.

 

S-Bus Sensor Wiring

The labels on the sensors and controller are color coded for ease of

installation. Orange labeled sensors can only be wired to orange

terminals  on the controller.  Brown  labeled  sensors  can  only be

wired to S-bus (brown) terminals. Use Fig. 45 and Table 5 to lo

-

cate the wiring terminals for each S-Bus sensor.

Use Fig. 44 and Table 5 to locate the wiring terminals for each en

-

thalpy control sensor.

Fig. 45 — S-Bus Sensor DIP Switches

Table 3 —  Economizer Module - Left Hand Terminal 

Blocks

LABEL

TYPE

DESCRIPTION

Top Left Terminal Block

MAT

MAT

20k NTC 

and COM

Mixed Air Temperature Sensor (Polarity 

Insensitive Connection)

OAT

OAT

20k NTC 

and COM

Outdoor Air Temperature Sensor (Polarity 

Insensitive Connection)

S-BUS

S-BUS

S-BUS 

(Sylk* Bus)

Enthalpy Control Sensor 

(Polarity Insensitive Connection)

Bottom Left Terminal Block

IAQ 2-10

2-10 vdc

Air Quality Sensor Input (e.g. CO

2

 sensor)

IAQ COM

COM

Air Quality Sensor Common

IAQ 24V

24 vac

Air Quality Sensor 24 vac Source

ACT 2-10

2-10 vdc

Damper Actuator Output (2-10 vdc)

ACT COM

COM

Damper Actuator Output Common

ACT 24v

24 vac

Damper Actuator 24 vac Source

NA

AUX2- 

OCC

E-GND

EXH1

AUX1-O

Y2-

Y1-

Y2-O

Y1-O

C

R

5004

88

4

8

-002

Rev. A

NA

A2

OCC

EX

A1

Y2I

Y2O

Y1I

Y1O

C

R

MAT

MAT

OAT

OAT

S

-BU

S

S

-BU

S

IAQ 2-10

IAQCOM 

IAQ 24V

ACT 2-10

ACT COM

ACT 24V

MA
MA

OA
OA

S

B

S

B

S

B

S

B

S

B

S

B

V
C
R

V
C
R

NA

50040

83

9-001

Rev. G

HJW10

www.energy.ca.gov

Certified FDD Product

California Title 24, Part 6

Table 4 — Economizer Module - Right Hand Terminal 

Blocks

LABEL

TYPE

DESCRIPTION

Top Right Terminal Blocks

AUX2 I

24 vac IN

The first terminal is not used.

OCC

24 vac IN

Shut Down (SD) or HEAT (W) 

Conventional only

and

Heat Pump Changeover (O-B) in Heat 

Pump mode.

E-GND

E-GND

Occupied/Unoccupied Input

EXH1

24 vac OUT Exhaust Fan 1 Output

AUX1 O

24 vac OUT

Programmable:

Exhaust fan 2 output

or

ERV

or

System alarm output

Bottom Right Terminal Blocks

Y2-I

24 vac IN

Y2 in - Cooling Stage 2 Input from space 

thermostat

Y2-O

24 vac OUT Y2 out - Cooling Stage 2 Output to stage 

2 mechanical cooling

Y1-I

24 vac IN

Y1 in - Cooling Stage 2 Input from space 

thermostat

Y1-O

24 vac OUT Y1 out - Cooling Stage 2 Output to stage 

2 mechanical cooling

C

COM

24 vac Common

R

24 vac

24 vac Power (hot)

DIP
SWITCH
LABEL

DIP
SWITCHES
(3)

S-BUS
2 PIN SIDE
CONNECTOR

S-BUS
TERMINALS
(1 AND 2)

Содержание 50KC04

Страница 1: ...NTERFACE OVERVIEW SETUP AND CONFIGURATION ENTHALPY SETTINGS CHECKOUT TROUBLESHOOTING Control and Power Wiring Diagrams 34 Smoke Detectors 42 ADDITIONAL APPLICATION DATA PremierLink Controller Factory...

Страница 2: ...unit rating plate Unit may have more than one power switch WARNING UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could cause personal injury death and or equipment damage R 410A refr...

Страница 3: ...tric Relief F Enthalpy Economizer w Barometric Relief K 2 Position Damper U Temp Ultra Low Leak Economizer w Baro Relief W Enthalpy Ultra Low Leak Econo w Baro Relief Base unit controls 0 Electro mech...

Страница 4: ...4 Fig 2 Unit Dimensional Drawing of Units Built On and After 4 15 19...

Страница 5: ...5 Fig 3 Unit Dimensional Drawing of Units Built on and Prior to 4 15 19...

Страница 6: ...6 Fig 4 Unit Corner Weights and Clearances...

Страница 7: ...7 Fig 5 Base Rail Details...

Страница 8: ...8 Fig 6 Thru the Base Charts...

Страница 9: ...F CARRIER CORPORATION 1 DEC 2 DEC 3 DEC ANG MATERIAL AUTHORIZATION NUMBER TITLE 1041738 CURB ASY ROOF ENGINEERING MANUFACTURING 004 007 ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRA...

Страница 10: ...ng refer to Step 10 for details 5 Rig and place unit 6 Install outdoor air hood 7 Install condensate line trap and piping 8 Make electrical connections 9 Install other accessories PAD MOUNTED INSTALLA...

Страница 11: ...frame as a reference See Table 2 and Fig 9 for additional in formation Lifting holes are provided in base rails as shown in Fig 9 Refer to rigging instructions on unit Before setting the unit onto th...

Страница 12: ...e covered by the tape used to secure the insulation to the basepan and are not easily seen See Fig 11 for position of the notches in the basepan Seals around duct openings must be tight Secure with sc...

Страница 13: ...pan and remove Locate and cut the 2 plastic tie wraps securing the assembly to the damper See Fig 14 Be careful to not dam age any wiring or cut tie wraps securing any wiring Fig 14 Economizer Hood Pa...

Страница 14: ...anels Only Relocate latch shipped inside the compressor compartment behind the hinged compressor door to location shown in Fig 18 after unit installation If the unit does not have hinged panels skip t...

Страница 15: ...nnection points on contactor C or op tional disconnect switch These leads are for factory run test pur poses only remove and discard before connecting field power wires to unit connection points Make...

Страница 16: ...abel diagram for power wir ing connections to the unit power terminal blocks and equipment ground Maximum wire size is 2 ga AWG copper only per pole on contactors Provide a ground fault and short circ...

Страница 17: ...fuse lo cated in a utility box and mounted on a bracket behind the conve nience outlet access is through the unit s control box access panel See Fig 25 The primary leads to the convenience outlet tra...

Страница 18: ...e the L bracket assembly from the unit 2 Remove connector plate assembly from the L bracket and discard the L bracket but retain the washer head screws and the gasket located between the L bracket and...

Страница 19: ...ructions If the thermostat contains a logic circuit requiring 24 v power use a thermostat cable or equivalent single leads of different colors with minimum of seven leads If the thermostat does not re...

Страница 20: ...ingle point box also includes a set of power taps and pigtails to complete the wiring between the single point box and the unit s main control box terminals Refer to the accessory heater and single po...

Страница 21: ...trol To connect the Carrier humidistat HL38MG029 1 Route the humidistat 2 conductor cable field supplied through the hole provided in the unit corner post 2 Feed wires through the raceway built into t...

Страница 22: ...iring Fig 42 Typical Rooftop Unit with Humidi MiZer Adaptive Dehumidification System with EDGE Pro Thermidistat Device Rc Rh W1 G Y2 C O W2 B Y1 OAT RRS SRTN HUM D1 D2 V Vg X C G W2 W1 Y2 Y1 R EDGE Pr...

Страница 23: ...ce Provides status for normal operation setup parameters checkout tests and alarm and error conditions with a 2 line 16 character LCD display and four button keypad Electrical Rated Voltage 20 to 30 v...

Страница 24: ...Sensor Input e g CO2 sensor IAQ COM COM Air Quality Sensor Common IAQ 24V 24 vac Air Quality Sensor 24 vac Source ACT 2 10 2 10 vdc Damper Actuator Output 2 10 vdc ACT COM COM Damper Actuator Output C...

Страница 25: ...220 Controller Navigation Buttons To use the keypad when working with Setpoints System and Ad vanced Settings Checkout tests andAlarms 1 Navigate to the desired menu 2 Press the Enter button to displa...

Страница 26: ...lled system The setup process uses a hierarchical menu structure that is easy to use Press the and arrow buttons to move forward and back ward through the menus and press the button to select and conf...

Страница 27: ...nd displays measured discharge temperature Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F or _ _ _ C 40 F to 140 F 40 C to 60 C OUTSIDE AIR TEMP D...

Страница 28: ...isplays only if CO2 sensor is connected Set point for Demand Controlled Ventilation of space Above the set point the OA dampers will modulate open to bring in additional OA to maintain a space ppm lev...

Страница 29: ...ON Damper position when freeze protection is active closed or MIN POS CO2 ZERO 0ppm 0 to 500 ppm Increment by 10 CO2 ppm level to match CO2 sensor start level CO2 SPAN 2000ppm 1000 to 3000 ppm Increme...

Страница 30: ...nge or become disconnected check wiring then replace sensor if the alarm continues OA SYLK T ERR N A N A OUTSIDE AIR S BUS SENSOR ERROR Outdoor air enthalpy sensor has failed or become disconnected ch...

Страница 31: ...or 2 Speed unit operation EQUIPMENT CONV AUX2 I W FAN SPEED 2SPEED For damper minimum position settings and checkout menu read ings see Table 8 For dry bulb operation with or without DCV see Tables 9...

Страница 32: ...High 24 v On 24 v On VENTMIN to VENTMAX Closed Yes Off Off High 0 v Off 0 v Off VENTMIN to VENTMAX Closed On Off High 0 v Off 0 v Off VENTMIN to Full Open Closed to Full Open On On High 24 v On 0 v Of...

Страница 33: ...sion of the software appears on the first line and the second line will be blank Power Loss Outage or Brownout All set points and advanced settings are restored after any power loss or interruption NO...

Страница 34: ...g Alarms Once the alarm has been identified and the cause has been re moved e g replaced faulty sensor the alarm can be cleared from the display To clear an alarm perform the following 1 Navigate to t...

Страница 35: ...35 Fig 49 Electro Mechanical Control Wiring Diagram...

Страница 36: ...36 Fig 50 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...

Страница 37: ...37 Fig 51 Electro Mechanical Power Wiring...

Страница 38: ...38 Fig 52 PremierLink Wiring Schematic...

Страница 39: ...39 Fig 53 PremierLink Wiring Schematic with Humidi MiZer System...

Страница 40: ...40 Fig 54 RTU Open System Control Wiring Diagram...

Страница 41: ...41 Fig 55 RTU Open System Control Wiring Diagram with Humidi MiZer System...

Страница 42: ...See Fig 57 Step 3 4 Connect the flexible tube on the sampling inlet to the sam pling tube on the basepan ADDITIONAL APPLICATION DATA Refer to the application data document Factory Installed Smoke Dete...

Страница 43: ...CO2 sensor DDC interface PremierLink Louvered hail guard Motormaster head pressure controls Phase monitor control Refer to separate installation instructions for information on in stalling these acces...

Страница 44: ...and Maintenance Instructions Pre Start and Start Up This completes the mechanical installation of the unit Refer to the unit s Service Manual for detailed Pre Start and Start Up instruc tions Downloa...

Страница 45: ...45 Fig 61 50KC A B Sizes 04 05 Metering Devices ACCUTROL NOTE Each feeder tube in the liquid header has a metering device...

Страница 46: ...46 Fig 62 50KC A B Sizes 06 Dual Metering Devices ACCUTROL ACCURATER NOTE Each feeder tube in the liquid header has a metering device...

Страница 47: ...47 Fig 63 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...

Страница 48: ......

Страница 49: ......

Страница 50: ...o discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500239 01 Printed in U S A Form 50KC 4 6 03SI Pg 50 3 2020 Replaces 50KC...

Страница 51: ...location in housing orifice and verify setscrew is tight Y N _____ Verify that fan sheaves are aligned and belts are properly tensioned Y N _____ Verify that scroll compressors are rotating in the co...

Страница 52: ...fan motor as condenser coil warms Y N _____ 4 Check unit charge per charging chart Y N _____ Jumper 32L Motormaster temperature sensor during this check Remove jumper when complete 5 Switch unit to hi...

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