Electrical Wiring - Lennox LT-B3021HW Installation Operating & Maintenance Manual

ELECTRICAL WIRING

1. All wiring must comply with LOCAL REGULATIONS.
2. Select a power source that is capable of supplying the current required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport.
Check the screws for loose connection.
(Running the air conditioner with loose connection can overload and damage electrical components.)
5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.
Main power source
Use circuit breaker or time delay fuse.
GROUP CONTROL(OPTIONAL)
It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent
over current.
Design
Internal Main PCB
Yellow
Red
ID
#1
Brown
AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION
Room Temp
HI AUTO Heater Preheat
MED JET Defrost Humidify
LO Filter Out door
Time ZONE 1 2 3 4
Operation unit Program set
Timer
On Off
Set no. Time 01 03 05 07 09 11 13 15 17 19 21 23
Circuit Breaker
Switch box
(24K, 28K, 30K Btu)
Yellow Yellow
ID ...... ID
#2 #16
Brown Brown
Wired Remote Controller
(Standard)
Refrigerant pipe
Features
• Use Only One Wired Remote Controller with several
air conditioners (max. 16 Units).
• Sequential starting to prevent overcurrent.
• You can use a group control after connecting the
brown and yellow wire of each air-conditioner.
• You must remove the resistor "OP 7" in remote control.
–28–
(36K Btu)