Control System
EDMMT712101
46
VAM-HVE/HVLT Series
Pre-cooling/Pre-heating operation
Purpose
•
Functions
This is an energy saving function to reduce the ventilation load at the start of air conditioner by delaying the operation of Heat Reclaim
Ventilator Unit during the startup operation of air conditioner in early morning.
POINT
Operating conditions
Pre-cooling and pre-heating operations are available only for 1 group
interlocking control and centralized zone interlocking control.
Be sure to perform interlocked control with air conditioner.
(It does not work in independent system.)
System
Operation command
Conditions for operation
From
remote
controller
From
centralized
equipment
Heat Reclaim
Ventilator Unit
remote controller
Indoor unit operation
mode
Interlock
1 group
interlocking control
〇
—
Unnecessary
Only during cooling
or heating
Centralized
management
Zone Management
—
〇
Necessary
Do not set pre-
cooling/pre-heating
during independent
ventilation operation
as it involves a delay.
[
Indoor unit
is necessary
within the same
zone
]
Delay time can be selected from 30/45/60 minutes by field setting.
If this delay time is insufficient, it can be further extended by 30/60/90
minutes only for pre-heating operation.
N
N
N
Y
Y
Y
Operation
command
Set time
(30/45/60 minutes)
Only during
heating
⊕
(30/60/90 minutes)
Time count
Operation standby
Operation start
Preset time
elapsed
Pre-cooling/
pre-heating
setting
“ON”
Elapsed
time since
last stop:
> 2 hours
Example of control wiring
F1 F2
P1 P2
P1 P2
P1 P2
Heat Reclaim Ventilator Unit
Indoor unit
Note) The maximum length of remote controller cord is up to 500m.
Remote controller
Switch number that needs to be changed for the system
Field settings using remote controller is required.
Field settings using remote controller
Setting descriptions
Mode
No.
Setting switch
No.
Setting position
01
02
03
04
Pre-cooling
•
pre-heating operation setting
17 (27)
2
OFF
ON
—
—
Pre-cooling
•
pre-heating operation time setting
3
30 minutes
45 minutes
60 minutes
—
Pre-heating extension time setting
9
0 minutes
30 minutes
60 minutes
90 minutes
Factory default setting
Essential optional accessory
NIL.
Summary of Contents for VAM Series
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Page 4: ...EDMMT712101 2 Table of Contents 17 6 Precautions for Design and Installation 181 ...
Page 56: ...Control System EDMMT712101 54 VAM HVE HVLT Series C 3P343420 1E ...
Page 138: ...Installation Manual EDMMT712101 136 VAM HVE HVLT Series 3P607378 3C ...
Page 139: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 137 3P607378 3C ...
Page 141: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 139 C EM20A032 ...
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Page 147: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 145 3P607378 3C ...
Page 148: ...Details of Optional Accessories EDMMT712101 146 VAM HVE HVLT Series 3P607378 3C ...
Page 149: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 147 3P607378 3C ...
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Page 155: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 153 4P457318 1D ...
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