ECR International A Series Installation, Operation And Maintenance Manual page 19

Table A-9 Direct Drive Blower Characteristics - 1/2 HP ECM Variable Speed Constant CFM Motor
Furnace Model
UMLV 65-100
SW1 HEAT
DIP SWITCH POSITION
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
SW2 COOL
DIP SWITCH POSITION
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
SW2 COOL
DIP SWITCH POSITION
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
CFM's shown are reduced by 20% if 24 VAC input is to Y1 (slow speed of 2 speed compressor) instead of Y/Y2
SW4 DELAY
DIP SWITCH POSITION
A (1=OFF, 2=OFF)
B (1=ON, 2=OFF)
C (1=OFF, 2=ON)
D (1=ON, 2=ON)
NO ADJUSTMENT
REQUIRED
N/A
APPENDIX A - CHECK OUT AND ADJUSTMENTS
Blower Motor HP
100-10T DD 1/2 HP ECM
INPUT CFM WITH SW3-ADJ
[USGPH] DIP SWITCH POSITION A
0.65 982
0.85 1500
0.75 1170
0.55 852
CONTINUOUS FAN
AC SIZE CFM WITH SW3-ADJ
[TONS] DIP SWITCH POSITION A
3.5 700
3 600
2.5 500
2 400
COOLING OR HEAT PUMP HEATING
AC SIZE CFM WITH SW3-ADJ
[TONS] DIP SWITCH POSITION A
3.5 1400
3 1200
2.5 1000
2 800
DELAY PROFILE FOR OIL HEATING
INPUT PRE RUN ON DELAY
[USGPH]
TIME - CFM LEVEL
0.65 60 SECONDS - 0%
0.85 30 SECONDS - 0%
0.75 60 SECONDS - 0%
0.55 60 SECONDS - 0%
DELAY PROFILE FOR COOLING OR HEAT PUMP HEATING
AC SIZE PRE RUN ON DELAY
[TONS] TIME - CFM LEVEL
ALL 7.5 MINUTES - 82%
Motor FLA
7.7
OIL HEATING
CFM WITH SW3-ADJ
DIP SWITCH POSITION B
1129
1500
1346
980
CFM WITH SW3-ADJ
DIP SWITCH POSITION B
805
690
575
460
CFM WITH SW3-ADJ
DIP SWITCH POSITION B
1500
1380
1150
920
SHORT RUN ON DELAY
TIME - CFM LEVEL
60 SECONDS - 50%
60 SECONDS - 63%
60 SECONDS - 50%
60 SECONDS - 50 %
SHORT RUN ON DELAY
TIME - CFM LEVEL
NONE
19
∆T
45-75°F
CFM WITH SW3-ADJ
DIP SWITCH POSITION C
835
1275
995
724
CFM WITH SW3-ADJ
DIP SWITCH POSITION C
595
510
425
340
CFM WITH SW3-ADJ
DIP SWITCH POSITION C
1190
1020
850
680
OFF DELAY
TIME - CFM LEVEL
3 MINUTES - 75%
3 MINUTES - 88%
3 MINUTES - 82%
3 MINUTES - 69%
OFF DELAY
TIME - CFM LEVEL
NONE
PN 240010964 Rev. L [10/01/2021]