14
Table 3: Electric furnace SUP, ECM ½ HP motor, air flow tables
AC / HP SIZE
Adjustment
BLUE wire position
A/C size
(TONS)
CFM ?
AC/HP CFM ADJUST
BLACK wire position = (NOM)
CFM ?
AC/HP CFM ADJUST
BLACK wire position = (LO)
CFM ?
AC/HP CFM ADJUST
BLACK wire position = (HI)
36 3,0 1200 1080 1320
30 2,5 1000 900 1100
24 2,0 800 720 880
18 1,5 600 540 660
AC / HP SIZE
Selection
BLUE wire position
A/C size
(TONS)
CFM ?
CONTINUOUS FAN
YELLOW wire position = (LO)
CFM ?
CONTINUOUS FAN
YELLOW wire position = (MED)
CFM ?
CONTINUOUS FAN
YELLOW wire position = (HI)
36 3,0 600 960 1200
30 2,5 500 800 1000
24 2,0 400 640 800
18 1,5 300 480 600
HEAT KW/CFM
adjustment
RED wire position
POWER
(Kw)
CFM
First stage
24 VAC on W1*
CFM
Second stage
24 VAC on W1 and/or W2*
20 20 500 1000
18 18 450 900
15 15 400 800
ON / OFF DELAY
Adjustment
WHITE wire position
ON-Delay
Time
OFF-Delay
% CFM - Time
0 / 90 0 sec. 100% - 90 sec.
30 / 90 30 sec. 100% - 90 sec.
0 / 0 0 sec. 0 sec.
ENH 30 sec. 70 % - 150 sec.
No adjustment
required
ON-Delay
Time
OFF-Delay
% CFM - Time
- 0 sec. 50% - 60 sec.
ELECTRIC HEATING MODE
24 VAC (R) input on W1 and/or W2 only
* Remove the Jumper J2 when a 2 stages thermostat is used
ON & OFF DELAY FOR COOLING AND HEAT PUMP HEATING MODE
DELAY PROFILE FOR ELECTRIC HEATING MODE
COOLING OR HEAT PUMP HEATING MODE (WITH HP-EFF SELECTED ?)
24 VAC (R) input on G, Y/Y2 and O (for cooling)
? In Cooling - Dehumidification mode (with Jumper J1 remove), with no 24 VAC input to DH, the CFMs are reduced by 15%.
? The CFMs shown are reduced by 20% if there is 24 VAC input to Y1 only (Y/Y2 not powered)
? SYSTEM TYPE select to HP-EFF corresponds to 400 CFM/TONS - HP-COMFORT corresponds to 350 CFM/TONS
CONTINUOUS FAN
24 VAC (R) input on G only
? CFM's when AC/HP CFM ADJUST at NOM position. CFM's 10% lower or higher if AC/HP CFM ADJUST at LO or HI position.
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