Indoor Unit Functional Concept
ESIE05-03
2–32
Part 2 – Functional Description
3
1
2
4
5
2.5
Draft Avoidance Control 1
Purpose
Avoid draft for the customer by delaying transfer of the flap to the Po0 (horizontal) position for a certain
amount of time when defrosting and in heating thermostat OFF.
Heating thermostat
OFF
The time chart below illustrates the draft avoidance control 1 in heating thermostat OFF.
Defrosting
The time chart below illustrates the draft avoidance control 1 in defrosting.
Used inputs
The draft avoidance control 1 uses the following inputs:
When the flap starts to move, there can be
a draft. The fan speed decreases to LL
speed but it takes some time because of
its inertia.
Fan
Flap
Thermostat
Setting
LL
Setting
Po0
ON
OFF
Flap motor starts
to drive the flap.
20 s
Flap moves from
setting position to Po0
Po0
When the flap starts to move, there can be
a draft. The fan speed decreases to LL
speed but it takes some time because of
its inertia.
Fan
Flap
Defrosting
Setting
Off
Setting
Po0
Yes
No
Flap motor starts
to drive the flap.
20 s
Flap moves from
setting position to Po0
Po0
Input
Connection on
indoor PCB
Connection on
outdoor PCB
Limit switch for flap
33S
—
No. of fan turns
X26A
—
Outdoor heat exchanger thermistor (defrost control)
—
R2T
ESIE05-03.book Page 32 Wednesday, April 6, 2005 4:09 PM
Summary of Contents for RZQ100B7W1B
Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Page 2: ......
Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Page 58: ...ESIE05 03 1 36 Part 1 System Outline...
Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...