WaterFurnace Envision2 - Manual (Page 20)

20
ENVISION 2 COMPACT - 50 HZ INSTALLATION MANUAL
Variable Speed ECM Motor
Model
Max
ESP (Pa)
Blower
Size
Motor
kW
Airflow DIP Switch Settings
1 2 3 4 5 6 7 8 9 10 11 12
005 124.50 229 x 178 0.37
142 189 236 283 330 378
L M H
006 124.50 229 x 178 0.37
189 236 283 330 378 425 472 519 566
L M H
009 124.50 279 x 254 0.37
307 354 401 472 519 566 614 661 708
L M H
012 124.50 279 x 254 0.37
307 378 425 496 543 590 637 684 732
L M H
015 186.75 279 x 254 0.75
378 448 519 614 708 826 920 991 1085
L M H
017 187.75 279 x 254 0.75
378 448 519 614 708 826 920 991 1085
L M H
Factory settings are at recommended L-M-H DIP switch locations
M-H settings MUST be located within boldface L/s range
Lowest and Highest DIP switch settings are assumed to be L and H respectively
Air flow is controlled within ±5% up to the maximum ESP
Max ESP includes allowance for wet coil and 25.4 mm MERV 4 6/15/12
The ABC board’s Yellow Config LED will flash the current
variable speed ECM blower speed selections for low, med,
and high continuously with a short pause in between. The
speeds can also be confirmed with the AID Tool under the
Setup/ECM Setup screen. The variable speed ECM blower
motor speeds can be field adjusted with or without using
an AID Tool.
Variable Speed ECM Setup without an AID Tool
The blower speeds for Low (G only), Med (Y1), and High
(Y2/Aux) can be adjusted directly at the Aurora ABC
board which utilizes the push button (SW1) on the ABC
board. This procedure is outlined in the variable speed ECM
Configuration Mode portion of the Aurora ‘Base’ Control
System section.
Variable Speed ECM Setup with an AID Tool
A much easier method utilizes the AID Tool to change
the airflow using the procedure below. First navigate to
the Setup screen and then select ECM Setup. This screen
displays the current variable speed ECM settings. It allows
the technician to enter the setup screens to change the
variable speed ECM settings. Change the highlighted item
using the ◄ and ► buttons and then press the ◙ button to
select the item.
Setting Blower Speed - Variable Speed ECM
Variable Speed ECM Speed Setup - These screens allow
the technician to select the low, medium, and high blower
speed for the variable speed ECM blower motor. Change
the highlighted item using the ▲ and ▼ buttons. Press the
◙ button to select the speed.
After the high speed setting is selected the AID Tool will
automatically transfer back to the ECM Setup screen.
Variable Speed ECM Setup with an AID Tool cont.
Selecting YES will enter variable
speed ECM speed setup, while
selecting NO will return to the
previous screen.
ECM SPEED INFO
LOW SPEED: 3
MED SPEED: 5
HIGH SPEED: 7
WANT TO CHANGE?
YES
OPTION ◄►
NO
ENTER ◙
ECM SPEED INFO
1
2 <– LOW
3
4
5
6
7
8
9
10
11
12
OPTION ◄► ENTER ◙
ECM SPEED INFO
1
2 LOW
3
4
5 <– MED
6
7
8
9
10
11
12
OPTION ◄► ENTER ◙
ECM SPEED INFO
1
2 LOW
3
4
5 MED
6
7
8
9
10
11
12 <– HIGH
OPTION ◄► ENTER ◙
Blower Performance Data cont.