First Co VMBE Series Variable Speed High Efficiency Variable Speed Motor Instruction Manual
The VMBE Series includes a programmable, high efficiency motor that redefines comfort and energy savings.
The VMBE Series includes a programmable, high efficiency motor that redefines comfort and energy savings. The VMBE motor automatically adjusts its torque and speed to maintain a preprogrammed level of constant airflow over a wide range of external static pressures. This variable speed technology offers better indoor air quality, more precise humidity control, quieter operation, consistent indoor air temperature, and lower utility bills.
High Efficiency – At full load conditions the VMBE motor is 20% more efficient than an induction motor and at constant fan speed it consumes only 60-80 watts of power compared to 400 watts for a standard induction motor
Quiet Operation – The versatile VMBE motor quietly “ramps up” when the unit is turned on and “ramps down” when the thermostat is satisfied, eliminating the annoying sounds of changing airflow.
Self-Regulating Constant Airflow – The VMBE motor is factory programmed to maintain a predetermined level of airflow over a wide range of external static pressures, ensuring optimum system performance and whole-house comfort. The benefits of constant fan operation are:
- Consistent air distribution (and temperature) throughout the home
- Better indoor air quality (further improved with the addition of high efficiency filter) – This allows the air to be filtered without excessive drafts and without sacrificing efficiency.
- Better humidity control – The VMBE is designed to extract much more moisture from the air than a conventional system by slowing the airflow over the cooling coil. The result is an improved summer comfort level at higher indoor temperatures.
Variable Speed ECM Motor
| PHYSICAL DIMENSIONS | |||||||||
| UNIT MODEL | A | B | C | D | E | F | G | H | FILTER SIZE |
| 8VMBE | 40 | 20 | 20 | 18-1/2 | 16 | 2 | 18 | 16 | 18 X 20 X 1 |
| 12VMBE | 42 | 23 | 20 | 21-1/2 | 16 | 2 | 18 | 17 | 20 X 22 X 1 |
| 16/20VMBE | 48 | 28 | 21-1/4 | 26-1/4 | 17-1/4 | 2 | 19-1/4 | 18 | 20 X 25 X 1 |
| AIR FLOW DATA (see “heating select taps” below each table for proper field set-up) | |||||||||||||
|
MODEL |
OPERATING MODE |
THERMOSTAT TERMINALS | CONTROL BOARD SELECT TAPS | ||||||||||
|
COOL TAP |
HEAT TAP | ||||||||||||
| “X” ENERGIZED TERMI- NALS | |||||||||||||
| (See notes below) | |||||||||||||
| Y1 | G | W1 | A | B | C | D | A | B | C | D | |||
|
8VMBE |
COOLING | X | X | 800 | 720 | 600 | 525 | ||||||
| CONTINUOUS BLOW- ER | X | 400 | 360 | 300 | 265 | ||||||||
| ELECTRIC HEAT | X | 790 | 730 | 660 | 600 | ||||||||
| Heating Select Taps
A 800 CFM unit with 0 – 15kW electric heat B 800 CFM unit with 0 – 5kW max. electric heat C 600 CFM unit with 0 – 10kW electric heat D 600 CFM unit with 0 – 5kW max. electric heat |
|||||||||||||
|
12VMBE |
COOLING | X | X | 1200 | 1050 | 950 | 850 | ||||||
| CONTINUOUS BLOW- ER | X | 600 | 525 | 475 | 425 | ||||||||
| ELECTRIC HEAT | X | 1130 | 1000 | 875 | 790 | ||||||||
| Heating Select Taps
A 1200 CFM unit with 0 – 15kW electric heat B 1200 CFM unit with 0 – 10kW max. electric heat C 950 CFM unit with 0 – 10kW electric heat D 950 CFM unit with 0 – 5kW max. electric heat |
|||||||||||||
|
16VMBE |
COOLING | X | X | 1600 | 1400 | 1250 | 1100 | ||||||
| CONTINUOUS BLOW- ER | X | 800 | 700 | 625 | 550 | ||||||||
| ELECTRIC HEAT | X | 1500 | 1360 | 1190 | 1060 | ||||||||
| Heating Select Taps
A+10% 1600 CFM unit with 20kW electric heat A 1600 CFM unit with 10 – 20kW max. electric heat B 1600 CFM unit with 0 – 10kW max. electric heat C 1250 CFM unit with 10 – 15kW electric heat D 1250 CFM unit with 0 – 10kW max. electric heat |
|||||||||||||
|
20VMBE |
COOLING | X | X | 1825 | 1700 | 1600 | 1400 | ||||||
| CONTINUOUS BLOW- ER | X | 900 | 850 | 800 | 700 | ||||||||
| ELECTRIC HEAT | X | 1825 | 1700 | 1500 | 1300 | ||||||||
| Heating Select Taps
A 2000 CFM unit with 15 – 20kW electric heat B 2000 CFM unit with 0 – 15kW max. electric heat C 1600 CFM unit with 10 – 20kW electric heat D 1600 CFM unit with 0 – 10kW max. electric heat |
|||||||||||||
Airflow shown are dry coil at 230 volts.
Max. ext. static pressure is 0.50″ wtr
Notes: The cooling and heating speed taps are factory set on “A”. The delay profile is factory set on “A” (Arid setting). The adjust profile is factory set on Normal. If humidistat function is activated the cooling CFM will be reduced by 20%. Adjust profile (+) will increase airflow by 10%, while tap (-) will decrease airflow by 10%.
For additional sales and technical information on variable speed motors visit: www.thedealertoolbox.com
Digital thermostats for these units must have a “C” terminal.
In keeping with its policy of continuous progress and product improvement, First Operations reserves the right to make changes without notice. Maintenance for all First Co. products is available under “Product Maintenance” at www.firstco.com.
| PERFORMANCE DATA – 230V | CIRCUIT 1 | CIRCUIT 2 | CIRCUIT 3 | |||||||||
|
UNIT MODEL |
kW (@ 230V) |
MOTOR AMPS |
MO- TOR HP | L1 – L2 TOTAL AMPS 230V/208V | L1 – L2 MIN. CIR. AMPACITY 230V/208V | L1 – L2 MAX. CIR.
PROTECTION 230V/208V |
L3 – L4 TOTAL AMPS 230V/208V | L3 – L4 MIN. CIR. AMPACITY 230V/208V | L3 – L4 MAX. CIR.
PROTECTION 230V/208V |
L5 – L6 TOTAL AMPS 230V/208V | L5 – L6 MIN. CIR. AMPACITY 230V/208V | L5 – L6 MAX. CIR.
PROTECTION 230V/208V |
| 8VMBE0 | 0 | 1.9 | 1/3 | 1.9 | 3/3 | 15/15 | — | — | — | — | — | — |
| 8VMBE3 | 3 | 1.9 | 1/3 | 15/13 | 18/16 | 20/20 | — | — | — | — | — | — |
| 8VMBE4 | 4 | 1.9 | 1/3 | 17/15 | 24/20 | 25/20 | — | — | — | — | — | — |
| 8VMBE5 | 5 | 1.9 | 1/3 | 21/18 | 29/25 | 30/25 | — | — | — | — | — | — |
| 8VMBE6 | 6 | 1.9 | 1/3 | 25/22 | 36/30 | 40/30 | — | — | — | — | — | — |
| 8VMBE8 | 8 | 1.9 | 1/3 | 33/29 | 46/39 | 50/40 | — | — | — | — | — | — |
| 8VMBE10 | 10 | 1.9 | 1/3 | 42/36 | 55/48 | 60/50 | — | — | — | — | — | — |
| 12VMBE0 | 0 | 2.8 | 1/2 | 2.8 | 4/4 | 15/15 | — | — | — | — | — | — |
| 12VMBE5 | 5 | 2.8 | 1/2 | 24/21 | 30/26 | 30/30 | — | — | — | — | — | — |
| 12VMBE8 | 8 | 2.8 | 1/2 | 36/32 | 46/40 | 50/40 | — | — | — | — | — | — |
| 12VMBE10 | 10 | 2.8 | 1/2 | 45/39 | 56/49 | 60/50 | — | — | — | — | — | — |
| 12VMBE15 | 15 | 2.8 | 1/2 | 45/39 | 56/49 | 60/50 | 21/18 | 27/23 | 30/25 | — | — | — |
| 16VMBE0 | 0 | 4.7 | 3/4 | 4.7 | 6/6 | 15/15 | — | — | — | — | — | — |
| 16VMBE5 | 5 | 4.7 | 3/4 | 26/23 | 32/29 | 35/30 | — | — | — | — | — | — |
| 16VMBE8 | 8 | 4.7 | 3/4 | 33/29 | 48/42 | 50/45 | — | — | — | — | — | — |
| 16VMBE10 | 10 | 4.7 | 3/4 | 46/41 | 58/50 | 60/50 | — | — | — | — | — | — |
| 16VMBE15 | 15 | 4.7 | 3/4 | 46/41 | 58/50 | 60/50 | 21/18 | 27/23 | 30/25 | — | — | — |
| 16VMBE20 | 20 | 4.7 | 3/4 | 46/41 | 58/50 | 60/50 | 42/36 | 53/46 | 60/50 | — | — | — |
| 20VMBE0 | 0 | 7.1 | 1 | 7.1 | 9/9 | 15/15 | — | — | — | — | — | — |
| 20VMBE5 | 5 | 7.1 | 1 | 28/26 | 36/32 | 40/35 | — | — | — | — | — | — |
| 20VMBE8 | 8 | 7.1 | 1 | 41/36 | 52/46 | 60/50 | — | — | — | — | — | — |
| 20VMBE10 | 10 | 7.1 | 1 | 47/42 | 59/53 | 60/60 | — | — | — | — | — | — |
| 20VMBE15 | 15 | 7.1 | 1 | 47/42 | 59/53 | 60/60 | 21/18 | 27/23 | 30/25 | — | — | — |
| 20VMBE20 | 20 | 7.1 | 1 | 47/42 | 59/53 | 60/60 | 42/36 | 53/46 | 60/50 | — | — | — |
NOTES:
- 15kW and 20kW models require 2 supply circuits.
- Units suitable for installation with 0” clearance to combustible material.
| CHILLED WATER COOLING CAPACITY – 4 ROW | |||||||||||||||
|
UNIT MODEL |
CFM |
GPM |
P.D. (FT. WTR.) |
45oF ENTERING WATER | 42oF ENTERING WATER | ||||||||||
| 80oF DB/67oF WB ENT. AIR | 75oF DB/63oF WB ENT. AIR | 80oF DB/67oF WB ENT. AIR | 75oF DB/63oF WB ENT. AIR | ||||||||||||
| TOTAL MBH | SENS. MBH | TEMP. RISE | TOTAL MBH | SENS. MBH | TEMP. RISE | TOTAL MBH | SENS. MBH | TEMP. RISE | TOTAL MBH | SENS. MBH | TEMP. RISE | ||||
|
8VMBE |
600 |
3.0
4.5 6.0 |
2.5
5.5 9.5 |
19.0
22.4 24.4 |
13.8
15.1 15.9 |
12.7
9.9 8.2 |
14.5
17.1 18.7 |
12.1
13.1 13.7 |
9.7
7.6 6.2 |
20.7
24.4 26.6 |
14.4
15.9 16.8 |
13.8
10.8 8.9 |
15.8
18.6 20.3 |
12.6
13.7 14.4 |
10.5
8.3 6.8 |
|
800 |
3.5
5.0 6.5 |
3.4
6.7 11.0 |
23.1
26.9 29.2 |
17.3
18.7 19.6 |
13.2
10.7 9.0 |
17.6
20.5 22.3 |
15.2
16.3 17.0 |
10.1
8.2 6.9 |
25.2
29.3 31.8 |
18.1
19.6 20.6 |
14.4
11.7 9.8 |
19.2
22.4 24.3 |
15.8
17.1 17.8 |
11.0
8.9 7.5 |
|
|
12VMBE |
1000 |
4.0
6.0 8.0 |
2.4
4.8 7.9 |
28.3
33.9 37.3 |
21.6
23.7 25.0 |
14.1
11.3 9.3 |
21.6
25.9 28.5 |
19.0
20.6 21.7 |
10.8
8.6 7.1 |
30.8
36.9 40.6 |
22.5
24.8 26.3 |
15.4
12.3 10.2 |
23.6
28.2 31.0 |
19.7
21.6 22.7 |
11.8
9.4 7.8 |
|
1200 |
5.0
6.5 8.0 |
3.5
5.5 7.9 |
33.7
38.0 41.0 |
25.5
27.1 28.2 |
13.5
11.7 10.3 |
25.8
29.1 31.3 |
22.4
23.7 24.6 |
10.3
8.9 7.8 |
36.8
41.5 44.7 |
26.6
28.4 29.6 |
14.7
12.8 11.2 |
28.1
31.7 34.1 |
23.3
24.7 25.7 |
11.3
9.7 8.5 |
|
|
16VMBE |
1400 |
4.5
6.0 7.5 |
2.0
3.3 4.8 |
36.2
42.4 46.9 |
29.2
31.4 33.1 |
16.1
14.1 12.5 |
27.7
32.4 35.8 |
25.8
27.6 28.9 |
12.3
10.8 9.6 |
39.5
46.2 51.1 |
30.3
32.8 34.7 |
17.5
15.4 13.6 |
30.1
35.3 39.0 |
26.7
28.7 30.2 |
13.4
11.8 10.4 |
|
1600 |
6.0
8.0 10.0 |
3.3
5.4 7.9 |
44.2
51.0 55.7 |
34.1
36.6 38.4 |
14.7
12.7 11.1 |
33.8
38.9 42.5 |
30.0
32.0 33.4 |
11.3
9.7 8.5 |
48.2
55.5 60.7 |
35.5
38.3 40.3 |
16.1
13.9 12.1 |
36.8
42.4 46.3 |
31.2
33.4 34.9 |
12.3
10.6 9.3 |
|
|
20VMBE |
1600 |
6.5
8.5 10.5 |
3.8
6.0 8.6 |
46.1
52.3 46.6 |
34.8
37.1 38.7 |
14.2
12.3 10.8 |
35.2
39.9 43.2 |
30.6
32.4 33.7 |
10.8
9.4 8.2 |
50.3
57.0 61.7 |
36.3
38.8 40.7 |
15.5
13.4 11.8 |
38.4
43.5 47.1 |
31.8
33..8 35.2 |
11.8
10.2 9.0 |
|
2000 |
7.0
10.0 13.0 |
4.3
7.9 12.5 |
52.4
61.7 67.5 |
40.9
44.3 46.5 |
15.0
12.3 10.4 |
40.0
47.1 51.6 |
36.1
38.8 40.5 |
11.4
9.4 7.9 |
57.1
67.3 73.6 |
42.6
46.4 48.8 |
16.3
13.5 11.3 |
43.6
51.4 56.2 |
37.4
40.5 42.4 |
12.5
10.3 8.6 |
|
3-WAY AIRFLOW
(Standard Harizontal Position)
(Alternate Horiziontal Position) ( Field convertible )
| ACCESSORIES: (for chilled water coil) | ||
| Power Heads: | ||
| E50131180 | 24V | |
| Separate Valve Bodies: (order power heads separately) (mount outside cabinet) | ||
| E421317 E431317 E421417 E431417 | 3/4″ 2-way – For 8-12VMBE-2773/4″ 3-way – For 8-12VMBE-2771″ 2-way – For 16-20VMBE-2771″ 3-way – For 16-20VMBE-277 | |
| Hand Valves: (Combination balance / shut-off) (2 usually req’d per coil) | ||
| CP90 CP905 | For 8-12VMBE-277 For 16-20VMBE-277 | |
NOTE:
- Power head leads are 18”.
WARNING AVERTISSEMENT ADVERTENCIA Cancer and Reproductive Harm Cancer et Troubles de l’appareil reproducer Cancer y Dart° Reproductivo www.P65Warnings.ca.flOVLOYOOS7
| ACCESSORIES: (field installed) (all components mount outside the cabinet) | |
| POWER HEADS: | |
| E50131180 | 24V |
| SEPARATE VALVE BODIES: (order power heads separately) | |
| E421317 E431317 E421417 E431417 | 3/4″ 2-way – For 8-12VMB3/4″ 3-way – For 8-12VMB1″ 2-way – For 16-20VMB1″ 3-way – For 16-20VMB |
| HAND VALVES: (Combination balance / shut-off) (2 usually req’d per coil) | |
| CP90 CP905 | 3/4″ – For 8-12VMB1″ – For 16-20VMB |
NOTE:
- Power head leads are 18”.
FIRST CO.
P.O. BOX 270969 – DALLAS, TEXAS 75227
PH. 214-388-5751 | SALES@FIRSTCO.CO
WWW.FIRSTCO.COM
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