Q-tran Qoms 60w-750w Ac Power Supply Installation Guide (+ PDF)

Contents hide

1 INSTALLATION QOMS/QOMD

1.3.2 Selecting the Right Tap

1.3.3 Warnings

2 Documents / Resources

2.1 References

3 Related Posts

INSTALLATION QOMS/QOMD

QOMS 60W-750W

1 CONTROL ZONE

Front View
Bottom View
PRIMARY
Line Voltage
Land Ground
Land Hot
Land Neutral
Chose either tap 1 (switch) or 2 (dimmer; long primary run or low input voltage (115V or less))
*Must test all voltage readings with a True RMS Voltage Meter when controlled by a dimmer. Do not exceed secondary voltage!
SECONDARY
Low Voltage
If 12V Taps are
12V, 13V, 14V, 15V
*Up to 5 Sec. Breakers can be used

BKR COLOR 12V 24V

5 A       Orange     60w    120w
10 A     Red          120w    240w
12.5 A Yellow      150w    300w
15 A    Yellow      180w    360w
20 A    Blue         240w    480w
25 A    Purple      300w    600w

Step 1.
Connect line side or “hot” side of the low voltage connection.
Start with position # 1.
Step 2.
Connect common side to one of the low voltage terminal blocks.
* Repeat step 1 & 2 for every new lead connection.
L.V. Secondary feeds go to a 85 AMP rated terminal block. Each terminal is UL listed to have the following capacity:
6 #14
4 #12
4 #10
2 #8
*For longer runs you may need to go to a higher tap & or larger wire gauge on secondary side.

QOMD 60W-300W

2 CONTROL ZONES

Front View
Bottom View
PRIMARY
Line Voltage
Land Ground
Land Hot
Land Neutral
Chose either tap 1 (switch) or 2 (dimmer; long primary run or low input voltage (115V or less))
*Must test all voltage readings with a True RMS Voltage Meter when controlled by a dimmer. Do not exceed secondary voltage!
SECONDARY
Low Voltage
If 12V Taps are
12V, 13V, 14V, 15V
*Up to 5 Sec. Breakers can be used

BKR COLOR 12V 24V

Step 1.
Connect line side or “hot” side of the low voltage connection.
Start with position # 1.
Step 2.
Connect common side to one of the low voltage terminal blocks.
* Repeat step 1 & 2 for every new lead connection.
L.V. Secondary feeds go to a 85 AMP rated terminal block. Each terminal is UL listed to have the following capacity:
6 #14
4 #12
4 #10
2 #8
*For longer runs you may need to go to a higher tap & or larger wire gauge on secondary side.

Wiring Diagram

120V (60Hz) – 12/24V

PRIMARY SECONDARY
120VAC 12 VAC

( * ) CONNECT TO ANY TAP

– USE SECONDARY TERMINAL BLOCKS FOR LOAD CONNECTIONS
– DASHED LINES INDICATE ELECTRICAL CONTRACTOR WIRING
– MULTIPLE LOADS CAN BE CONNECTED TO THE SAME OR DIFFERENT TAPS, DEPENDING ON DESIRED OUTPUT VOLTAGE, TO COMPENSATE FOR VARYING LOAD DISTANCES.

230V (50Hz) – 12/24V-
277V (60Hz) – 12/24V

PRIMARY SECONDARY
230/277VAC 12 VAC

( * )CONNECT TO ANY TAP

Selecting the Right Tap

Conclusion:
With a simple ﬁeld adjustment, the contractor was able to recover his voltage drop and light output by switching from Tap 12 to Tap 15.

A 12V Lamp Operating at 10V = 50 % Light Output!

Rating	Excellent	Good	Poor	Bad	Very Bad
Light Output
Lamp Volts	24.0V	22.8V	21.6V	20.4V	19.2V
Voltage Drop	0%	-5%	-10%	-15%	-20%
Lamp Volts	12.0V	11.4V	10.8V	10.2V	9.6V
Light Output
Rating	Excellent	Good	Poor	Bad	Very Bad

The Impact of Voltage Drop on Light Output

*For longer runs you may need to go to a higher tap & or larger wire gauge on secondary side.

* Use a True RMS Volt Meter when a dimmer is used.
(RMS = Root Mean Squared)

The “line side” of the load is connected to secondary circuit breakers.
[4 AMP – 25 AMP]

Warnings

WARNING

FOR CONDUIT CONNECTION
RISK OF ELECTRIC SHOCK.
Install power unit 5 feet (1.5 m) or more from the pool or spa and 10 feet (3.05 m) or more from a fountain. Where the power unit is installed within 10 feet (3.05 m) of a pool or spa, connect unit to GFCI protected branch circuit.

FOR POWER SUPPLY CORD CONNECTION
RISK OF ELECTRIC SHOCK.
Install power unit 5 feet (1.5 m) or more from the pool, spa, or fountain. Where the power unit is installed (a) indoors within 10 feet (3.05 m) of a pool, spa, or fountain or (b) outdoors, connect power unit to a receptacle protected by a GFCI.

RISK OF FIRE. If installation requires running wire through a building structure, special wiring methods are needed. Contact a qualified electrician.

OUTDOOR CORD – connected unit shall be connected to a GFCI protected hooded flush type cover plate recepticle marked “Wet Location.

DO NOT USE EXTENSION CHORDS.

The main Secondary Wiring is intended for shallow burial – less than 6 inches (152 mm) For Supply connections use wire rated for at least 60C.

* To order additional lengths of wire for connection in the secondary, contact your local distributor or Q-Tran at 203-367-8777 and inquire about Q-Wire.

LISTED 5F78

LOW VOLTAGE LIGHTING POWER SUPPLY CENTER

LANDSCAPE LIGHTING POWER UNIT
SUITABLE FOR WET LOCATION
SUITABLE FOR INDOOR/OUTDOOR USE
UL 1838 & 2108 LISTED
ISOLATION TOROIDAL TRANSFORMER
USE DIMMERS RATED FOR MAGNETIC LOW VOLTAGE LOADS
50/60 CYCLE
MADE IN THE U.S.A.

For model series:

QOM-60, QOM-100, QOM-150, QOM-300, QOM-500, QOM-600, QOM-750, QOM-2X150, QOM-2X300 and QOM-150/300, all field installed conductors, both primary and secondary, shall have insulation suitable for the highest voltage potential of the equipment.

WIRE TYPE	PRI. WIRE COLOR
HOT NEU (TAP 1) NEU (TAP 2) GROUND	BLACK RED ORANGE GREEN

BREAKER	MINIMUM AWG	12V
5A 10A 15A 20A 25A	14 14 14 12 10	60W 120W 180W 240W 300W

	QOM
	Model	Input Voltage (V)	Input Current (A)	Frequency	Nominal Output Voltage (VDC)	Max Output Wattage (W)
	QOM-60 QOM-60X2 QOM-60/100 QOM-60/150 QOM-60/300 QOM-100 QOM-100X2 QOM-100/150 QOM-100/300 QOM-150 QOM-150X2 QOM-150/300 QOM-300 QOM-300X2 QOM-500 QOM-600 QOM-750	120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277 120 / 277	.56 / .25 1.12 / .49 1.48 / .64 1.93 / .84 3.28 / 1.42 .92 / .40 1.84 / .80 2.29 / .99 3.64 / 1.58 1.37 / .59 2.74 / 1.19 4.09 / 1.77 2.72 / 1.18 5.44 / 2.36 4.48 / 1.94 5.32 / 2.30 6.58 / 2.85	50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60	12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24 12/24	60 60X2 60/100 60/150 60/300 100 100X2 100/150 100/300 150 150X2 150/300 300 300X2 500 600 750
CAUTION: USE ONLY WITH MAXIMUM OUTPUT LOAD PER ABOVE TABLE. This product must be installed in accordance with the applicable installation code by a person familiar with the construction and operation of the product and the hazards involved. SUITABLE FOR USE WITH SUBMERSIBLE LUMINAIRES OR SUBMERSIBLE PUMPS SUITABLE FOR WET LOCATIONS WALL MOUNT ONLY FOR SUPPLY CONNECTIONS USE WIRE RATED FOR AT LEAST 60 C. SUITABLE FOR INDOOR OR OUTDOOR USE SUITABLE FOR MOUNTING WITHIN 1.2m (4 ft.) OF THE GROUND ISOLATION TOROIDAL TRANSFORMER DIMMER, IF USED, MUST BE A MAGNETIC LOW-VOLTAGE DIMMER. 50/60 CYCLE A.C. ONLY MADE IN THE U.S.A. KEEP ENCLOSURE COVER CLOSED READ INSTALLATION INSTRUCTIONS BEFORE WIRING LOW VOLTAGE LUMINAIRE POWER SUPPLY CENTER QOM Series tested to: UL-2108, UL-1838 CSA C22.2 NO. 250.0-08 CSA C22.2 NO. 250.7-07 CLASS: 120V 3425 01 CLASS: 120V/277V 3425 81 3425 15 3425 95 WARNING: RISK OF FIRE. IF INSTALLATION INVOLVES RUNNING WIRE THROUGH A BUILDING STRUCTURE, SPECIAL WIRING METHODS ARE NEEDED. CONSULT A QUALIFIED ELECTRICIAN.