L-69-80
LOAD BANK
MANUAL CONTAINS
OPERATING INSTRUCTIONS
PARTS LIST
WIRING DIAGRAMS
SERVICE INSTRUCTIONS
CANNON LOAD BANKS, INC.
502 PARK STREET
PALMETTO, GA. 30268
770 - 463 - 0504
This load bank is manufactured and protected under U. S. Patent number 4,445,047
CAUTION
THIS LOAD BANK IS DESIGNED FOR THE TESTING AND SERVICING 480/208V 60HZ
POWER UNITS. THESE UNITS HAVE THE POTENTIAL OF DELIVERING A LETHAL
SHOCK. THIS LOAD BANK SHOULD BE USED ONLY BY TRAINED AND QUALIFIED
PERSONNEL. THIS LOAD BANK IS DESIGNED FOR TEMPORARY USE ONLY. THE
LOAD RESISTORS ARE ENERGIZED WHEN THE RATE SWITCH IS OFF, THEREFORE
DO NOT INSERT ANY OBJECTS IN THE GRILL ASSEMBLY. DO NOT BLOCK THE AIR
FLOW OR USE IF THE AIR FLOW IS REVERSED.
CANNON LOAD BANKS, INC.
MANUAL FOR L-69-80 LOAD BANK
TABLE OF CONTENTS
SUBJECT
SECTION
PAGE
DESCRIPTION
PURPOSE OF LOAD BANK
RATING OF LOAD BANK
LOAD BANK DESCRIPTION
CONTROL PANEL LAYOUT
CONTROL DESCRIPTION
1-1
1-2
1-3
1
1-4
1
1
1
2
3
2
2
2
2
2
1
3
5
7
9
3
3
3
3
3
3
3
3
1
2
3
4
5
6
7
8
FIGURE 1 - 1
FIGURE 1 - 2
OPERATION
TESTING 120VAC SINGLE PHASE
TESTING 240VAC SINGLE PHASE
TESTING 208VAC THREE PHASE
TESTING 240VAC THREE PHASE
TESTING 480VAC THREE PHASE
PARTS
PARTS INFORMATION
CONTROL PANEL PARTS LAYOUT
CONTROL PANEL PARTS LIST
INTERIOR PARTS LAYOUT
INTERIOR PARTS LIST
FAN PANEL PARTS LAYOUT
FAN PANEL PARTS LIST
VENDOR LIST
FIGURE 3 - 1
FIGURE 3 - 2
FIGURE 3 - 3
SERVICING
GENERAL SERVICING
REPLACING FAN
FIGURE 4 - 1
4-1
4-2
1
2
WIRING DIAGRAMS
INTERIOR W IRING
FAN PANEL WIRING
SCHEMATIC DIAGRAM
FIGURE 5 - 1
FIGURE 5 - 2
FIGURE 5 - 3
5
5
5
1
3
5
CANNON LOAD BANKS, INC.
DESCRIPTION
1-1 PURPOSE OF LOAD BANK: The L-69-80 is a portable load bank designed to be used for field servicing
and testing 60HZ generators and UPS systems. It can be used for checking cables after they have been
replaced or repaired. The load bank can also be shipped to different locations using the carrying case.
1-2 RATING OF LOAD BANK: The L-69-80 is rated at 100 KW full load when the input voltage is 480VAC and
80 KW when the input voltage is 208VAC with all five load steps turned on. The load steps are 12.5KW,
12.5KW, 25KW, 25KW and 25KW at 480VAC, 5KW or 10KW, 10KW, 20KW, 20KW, 20KW at 208VAC.
1-3 LOAD BANK DESCRIPTION: The load bank uses a 120VAC power source to operate other than the power
being tested. The different sides of the load bank are shown in fig. 1-1. The air enters the right side (fan side)
and exits the left side.
<<<< AIR FLOW <<<<
LEFT SIDE----------------------------
--------------
RIGHT SIDE (FAN SIDE)
FIGURE 1-1
LENGTH
WIDTH
HEIGHT
WEIGH
22 IN.
8 IN.
21 IN.
60 LBS.
CANNON LOAD BANKS, INC.
PAGE 1
SECTION 1
CONTROL PANEL PARTS
VOLTMETER
AMMETER
L-69-80
100KW AT 480 VAC
80KW AT 208VAC
60KW CONTINOUS
AT 208VAC
300
200
100
400
100
500
0
150
50
200
0
250
600
AC AMPS
AC VOLTS
60
58
62
55
A
B
C
L1
L2
L3
65
FREQUENCY
METER
HERTZ
POWER
INDICATOR
LIGHTS
L2-L3
L1-L2
L3-L1
480VAC
OFF
METER SWITCH
MAIN
MAIN
SWITCH
208VAC
METER
RATE
SWITCHES
LOAD
OFF
12.5KW 12.5KW
10KW
10KW
5KW
@20 8V
A
METER TEST JACKS
25KW
20KW
25KW
20KW
OFF
B
C
N
N
L1
FIGURE 1-2
POWER
RECEPTACLE
L3
CANNON LOAD BANKS, INC.
25KW
20KW
PAGE 2
L2
SECTION 1
1-4 CONTROL DESCRIPTION: The following is a description of the controls on the control panel (see figure 12 on page 2).
VOLT METER - A 600 volt meter used to measure the line to line voltage on the power cable. L1-L2,
L2-L3, L3-L1 can be selected using the meter selector switch. The meter should read approximately 480 volts
when testing 480VAC systems, and 208VAC when testing 208VAC systems.
AMMETER - A 250 amp ammeter used to measure the load being used by the load bank. It monitors “A”
phase.
FREQUENCY METER - A 55-65 HZ meter used to measure the frequency of the power unit. It should read
approximately 60HZ.
METER SWITCH - Switch used to select L1-L2, L2-L3, and L3-L1 on the voltmeter.
RATE SWITCHES - Switch used to select the desired rate on the load bank. The rates are as follows:
480VAC
1.
2.
3.
4.
5.
12.5 KW balanced load
12.5 KW balanced load
25
KW balanced load
25
KW balanced load
25
KW balanced load
208VAC
1.
2.
3.
4.
5.
5
10
20
20
20
KW
KW
KW
KW
KW
or 10 KW
balanced
balanced
balanced
balanced
balanced load
load
load
load
load
POWER INDICATOR LIGHTS - These lights will light to indicate power on A, B, and C phase. All three lights
should be on when testing three phase circuits.
METER TEST JACKS - This provides a place to connect an external meter. There is a test jack for each cable
pin.
POWER RECEPTACLE - The power cable from the equipment to be tested is plugged into the load bank
through the receptacle.
120 VOLT POWER RECEPTACLE - A power cable is provided to plug the unit into a 120VAC outlet.
(Not shown on drawing)
CANNON LOAD BANKS, INC.
PAGE 3
SECTION 1
BLANK
OPERATION
TESTING 120VAC SINGLE PHASE
2-1 SETTING UP THE LOAD BANK - Place the load bank in an area free from fuel, oil, or any other flammable
substance. The load bank should be positioned so that any strong wind or air currents will flow with the air flow
of the load bank.
2-2 APPLYING POWER - The load bank should be connected to the power unit to be tested with an output of
120VAC single phase. Make sure that the power unit is off before connecting the cable to the load bank. Use
L1, L2 and N, the blue and red plug, when testing single phase circuits. L1 should be connected to the line out,
L2 should be connected to neutral and the N cable with the green shrink should be connected to the ground of
the unit being tested. Make sure the lug on L3 is insulated. Plug the power cable plug in to the load bank.
The meter switch should be in the L1-L2 position. Turn on the output of the power unit.
2-3 CHECKING THE POWER - check the following:
A. The amber light, “A” should be on.
B. The voltmeter should read 120VAC on “A” phase.
C. The frequency meter should read approximately 60HZ.
D. The ammeter should read 0A.
2-4 APPLYING THE LOAD - If the above steps checked OK, turn on the main switch to 208VAC. The fans
should start up and the airflow should be as indicated by the airflow arrow. Next turn on the load switch. Add
the load desired with the rate switch.
A. Step 1 is 1.7 KW
B. Step 2 is 1.7 KW
C. Step 3 is 3.3 KW
D. Step 4 is 3.3 KW
E. Step 5 is 3.3 KW
Total load at 120VAC is 13.3KW.
Check to see that the voltage and frequency does not drop beyond acceptable limits under load.
2-5 SHUTTING DOWN - Turn the load switch and rate switches to the off position and allow the load bank to
cool down before turning the main switch to off. Turn the power unit off and disconnect the power cable plug.
CANNON LOAD BANKS, INC.
PAGE 1
SECTION 2
BLANK
OPERATION
TESTING 240VAC SINGLE PHASE
2-1 SETTING UP THE LOAD BANK - Place the load bank in an area free from fuel, oil, or any other flammable
substance. The load bank should be positioned so that any strong wind or air currents will flow with the air flow
of the load bank.
2-2 APPLYING POWER - The load bank should be connected to the power unit to be tested with an output
of240VAC single phase. Make sure that the power unit is off before connecting the cable to the load bank.
Use L1, L2 and N, the blue and red plug, when testing 240VAC single phase circuits. Plug the power cable plug
in to the load bank and connect the L1 cable to L1 on the power unit, the L2 cable to L2 on the power unit and
N to the ground on the power unit. MAKE SURE THE COPPER LUG ON L3 IS INSULATED. The meter switch
should be in the L1-L2 position. Turn on the output of the power unit.
2-3 CHECKING THE POWER - check the following:
A. The amber light, “A” and “B” should be on.
B. The voltmeter should read 240VAC on “A” and “B” phase.
C. The frequency meter should read approximately 60HZ.
D. The ammeter should read 0A.
2-4 APPLYING THE LOAD - If the above steps checked OK, turn the main switch to 208VAC. The fans should
start up and the airflow should be as indicated by the airflow arrow. Next turn on load switch. Add the load
desired with the rate switch.
A. Step 1 is 6.6 KW
B. Step 2 is 6.6 KW
C. Step 3 is 13.2 KW
D. Step 4 is 13.2 KW
E. Step5 is 13.2 KW
Total load at 240Vac single phase is 52.8KW
Check to see that the voltage and frequency does not drop beyond acceptable limits under load.
2-5 SHUTTING DOWN -Turn the load and rate switches to off. Allow the load bank to cool down before
turning the main switch to off. Turn the power unit off and disconnect the power cable plug.
CANNON LOAD BANKS, INC.
PAGE 3
SECTION 2
BLANK
OPERATION
TESTING 208VAC THREE PHASE
2-1 SETTING UP THE LOAD BANK - Place the load bank in an area free from fuel, oil, or any other flammable
substance. The load bank should be positioned so that any strong wind or air currents will flow with the air flow
of the load bank.
2-2 APPLYING POWER - The load bank should be connected to the power unit to be tested with an output
of208VAC 3 phase, plug in the 120VAC power cord. Make sure that the main switch and the load switch is set
to off before connecting the cable to the load bank. Use L1, L2, L3 and N, the blue and red plug, when testing
208VAC 3 phase circuits. Plug the power cable plug in to the load bank. Turn on the output of the power unit.
2-3 CHECKING THE POWER - check the following:
A. The amber light, “A”, “B”,”C” should be on.
B. The voltmeter should read 208VAC.
C. The frequency meter should read approximately 60HZ.
D. The ammeter should read 0A.
2-4 APPLYING THE LOAD - If the above steps checked OK, turn the main switch to 208VAC. The fans should
start up and the airflow should be as indicated by the airflow arrow. Next turn on the load switch. Add the load
desired with the rate switch.
A. Step 1 is
10 KW UP or 5KW DOWN
B. Step 2 is
10 KW
C. Step 3 is
20 KW
D. Step 4 is
20 KW
E. Step 5 is
20 KW
THIS UNIT SHOULD NOT BE RUN FOR MORE THAN ONE HOUR CONTINOUS AT 208VAC, 80KW. THE
RECEPTACLE IS RATED ONLY AT 63KW FOR CONTINOUS RUNNING.
Check to see that the voltage and frequency does not drop beyond acceptable limits under load. Return the
rate switch to the off position.
2-5 SHUTTING DOWN - Return the load and rate switches to the off position and, allow the load bank to cool
down before turning the power unit off. Turn the power unit off and disconnect the power cable plug.
CANNON LOAD BANKS, INC.
PAGE 5
SECTION 2
BLANK
OPERATION
TESTING 240VAC THREE PHASE
2-1 SETTING UP THE LOAD BANK - Place the load bank in an area free from fuel, oil, or any other flammable
substance. The load bank should be positioned so that any strong wind or air currents will flow with the air flow
of the load bank.
2-2 APPLYING POWER - The load bank should be connected to the power unit to be tested with an output of
240VAC 3 phase, plug in the 120VAC power cord. Make sure that the main switch and the load switch is set
to off before connecting the cable to the load bank. Use L1, L2, L3 and N, the blue and red plug, when testing
240VAC 3 phase circuits. Plug the power cable plug in to the load bank. Turn on the output of the power unit.
2-3 CHECKING THE POWER - check the following:
A. The amber light, “A”, “B”,”C” should be on.
B. The voltmeter should read 240VAC.
C. The frequency meter should read approximately 60HZ.
D. The ammeter should read 0A.
2-4 APPLYING THE LOAD - If the above steps checked OK, turn the main switch to 208VAC. The fans should
start up and the airflow should be as indicated by the airflow arrow. Next turn on the load switch. Add the load
desired with the rate switch.
A. Step 1 is
12.5 KW
B. Step 2 is
12.5 KW
C. Step 3 is
25 KW
D. Step 4 is
25 KW
E. Step 5 is
25 KW
Check to see that the voltage and frequency does not drop beyond acceptable limits under load.
WHEN OPERATING AT 240 THREE PHASE, THE LOAD BANK SHOULD NOT BE
OPERATED MORE THAN THIRTY MINUTES AT MAXIMUM LOAD. THE LOAD BANK
CAN OPERATED CONTINUOUS AT 70KW.
2-5 SHUTTING DOWN - Return the load and rate switches to the off position and, allow the load bank to cool
down before turning the power unit off. Turn the power unit off and disconnect the power cable plug.
CANNON LOAD BANKS, INC.
PAGE 7
SECTION 2
BLANK
OPERATION
TESTING 480VAC THREE PHASE
2-1 SETTING UP THE LOAD BANK - Place the load bank in an area free from fuel, oil, or any other flammable
substance. The load bank should be positioned so that any strong wind or air currents will flow with the air flow
of the load bank.
2-2 APPLYING POWER - The load bank should be connected to the power unit to be tested with an output of
480VAC 3 phase, plug in the 120VAC power cord. Make sure that the main switch and the load switch is set
to off before connecting the cable to the load bank. Use L1, L2, L3 and N, the blue and red plug, when testing
480VAC 3 phase circuits. Plug the power cable plug in to the load bank. Turn on the output of the power unit.
2-3 CHECKING THE POWER - check the following:
A. The amber light, “A”, “B”,”C” should be on.
B. The voltmeter should read 480VAC.
C. The frequency meter should read approximately 60HZ.
D. The ammeter should read 0A.
2-4 APPLYING THE LOAD - If the above steps checked OK, turn the main switch to 480VAC. The fans should
start up and the airflow should be as indicated by the airflow arrow. Next turn on the load switch. Add the load
desired with the rate switch.
A. Step 1 is
12.5 KW
B. Step 2 is
12.5 KW
C. Step 3 is
25 KW
D. Step 4 is
25 KW
E. Step 5 is
25 KW
Check to see that the voltage and frequency does not drop beyond acceptable limits under load.
2-5 SHUTTING DOWN -Return the load and rate switches to the off position and allow the load bank to cool
down before turning the power unit off. Turn the power unit off and disconnect the power cable plug.
CANNON LOAD BANKS, INC.
PAGE 9
SECTION 2
BLANK
PARTS INFORMATION
The following pages list the parts used in the load bank. All of the major parts are shown. Wire, screws, bolts,
and small miscellaneous hardware are not listed. Parts that are purchased from a vendor will show a vendor
name. These names refer to the vendor list is on page 8. Parts manufactured for or by Cannon Load Banks will
not show a vendor name.
A part number can be found by first locating the part on a drawing. After finding the part use the number to refer
to the parts list on the opposite page. Each part will have a drawing number, Cannon Load Banks part number,
description and the number used for each load bank.
Parts should be ordered from the address below giving the machine model number, part number and the
description.
CANNON LOAD BANKS, INC.
502 PARK STREET
PALMETTO, GA. 30268
PHONE: 770-463-0504
FAX: 770-463-2717
EMAIL: clbi@bellsouth.net
CANNON LOAD BANKS, INC.
PAGE 1
SECTION 3
CONTROL PANEL PARTS
1
2
200
300
100
400
100
150
50
200
500
0
0
250
600
AC AMPS
AC VOLTS
4
60
58
62
55
A
B
C
L1
L2
L3
65
3
7
HERTZ
L2-L3
L1-L2
L3-L1
480VAC
OFF
MAIN
5,6
8
208VAC
10
METER
9
LOAD
OFF
12.5KW 12.5KW
10KW
10KW
25KW
20KW
5 KW
@20 8V
25KW
20KW
25KW
20KW
OFF
A
B
C
N
11
N
L1
12
FIGURE 3 - 1
13
L3
CANNON LOAD BANKS, INC.
PAGE 2
L2
SECTION 3
CONTROL PANEL PARTS
FIGURE 3-1
DRAWING
NUMBER
PART
NUMBER
DESCRIPTION
VENDOR NO.
NUMBER
USED
1
MR-62
0 - 600V VOLT METER
1
2
MR-25
0 - 250A AMMETER
1
3
MR-60
55-65 HERTZ FREQUENCY METER
1
4
HD-25
HANDLE
2
5
KN-48
POINTER KNOB
1
6
SW-48
ROTARY SWITCH 3 POSITION METER SWITCH
(KRAUS & NAIMER CA11 A23-000 E SOG521)
1
7
LT-25
250VAC AMBER LIGHT
3
8
SW-69
TOGGLE SWITCH DPDT, DELAY
1
9
SW-22
TOGGLE SWITCH DPST
6
10
SW-23
TOGGLE SWITCH DPDT, MID OFF
1
11
TP-10
TEST PIN
4
12
SB-13
SB CONNECTOR -2PIN-BLUE
1
13
SB-11
SB CONNECTOR-2PIN-RED
1
CANNON LOAD BANKS, INC.
PAGE 3
SECTION 3
INTERIOR PARTS LAYOUT
1
2
10
16
14
15
7
5
4
3
6
13
12
9
8
11
FIGURE 3 - 2
CANNON LOAD BANKS, INC.
PAGE 4
SECTION 3
INTERIOR PARTS
FIGURE 3-2
DRAWING
NUMBER
PART
NUMBER
DESCRIPTION
VENDOR NO.
NUMBER
USED
1
HD-10
FOLDING HANDLE
1
2
BX-27
20" X 21" X 8" ALUM BOX
1
3
SB-11
SB CONNECTOR-2PIN-RED-175A
1
4
SB-13
SB CONNECTOR-2PIN-BLUE-175A
1
5
FS-62
250 FUSE, 600V
3
6
FT-10
GLIDES
8
7
RC-12
100Ω, 5W RESISTOR
2
8
RY-35
RELAY, 120VAC, 30A, MAGNACRAFT
16
9
RC-75
7.5KΩ, 25W RESISTOR
1
10
RY-21
RELAY, 120VAC, 2PDT, 10A
1
11
SW-11
AIR FLOW SWITCH
1
12
CT-15
250:5 CURRENT TRANSFORMER
1
13
LR-25
25Ω RESISTOR
48
14
ZN-20
200V, 5W ZENER DIODE
2
15
RC-14
12KΩ, 11W RESISTOR
1
16
RC-39
39KΩ, 2W RESISTOR
2
*
GL-24
RESISTOR GRILL
1
CANNON LOAD BANKS, INC.
PAGE 5
SECTION 3
FAN PANEL PARTS LAYOUT
9
1
8
3
2
4
5
6
7
FIGURE 3 - 3
CANNON LOAD BANKS, INC.
PAGE 6
SECTION 3
FAN PANEL PARTS
FIGURE 3-3
DRAWING
NUMBER
PART
NUMBER
DESCRIPTION
VENDOR NO.
NUMBER
USED
1
FS-11
FUSE 10A GLASS
1
2
TM-20
8 POSITION TERMINAL STRIP
V-BEAU PRODUCTS (78008)
1
3
PS-30
30VDC 400W POWER SUPPLY
RICHARDSON (NL3271)
1
4
FP-57
ALUM. FAN PANEL
1
5
GL-10
FAN GRILL CHROME
V-MERRILL (B-22662)
12
6
FN-25
24VDC FAN
EBM (W2G110-AK43-31)
12
7
TS-15
THERMAL SWITCH
GEMLINE (L-155)
1
8
SW-12
TILT SWITCH
1
9
AC-12
120VAC PLUG CONNECTION
1
CANNON LOAD BANKS, INC.
PAGE 7
SECTION 3
VENDOR LIST
The following is a list of vendors for parts shown in the parts list.
VENDOR
Anderson Power Products
145 Newton St.
Boston MA. 02135
Allied Electronics, Inc.
3425 Corporate Way, Suite A
Duluth, Ga. 30136
Bussmann Manufacturing
Distributed by Allied
Control Design Supply
1939-F Parker CT
Stone Mountain, GA. 30087
Cutler-Hammer
Distributed by Peerless
EBM Industries, Inc.
Distributed by Peerless
E.F. Johnson
Distributed by Peerless
Electric Supply Co.
433 Bishop St.
Atlanta, Ga. 30325
Gemline Products, Inc.
12472 Edison Way
Garden Grove, Ca. 92641
Merrill Manufacturing Corpation
236 South Genesee Street
Merrill, WI. 54452
Peerless Radio Corporation
3101 towercreek Pkwy, Suite 590
Atlanta, GA. 30339
Syrelec Electronics Corp.
Distributed by Control Design
Vemaline Products
333 Strawberry Field Rd.
Warwick, RI. 0288
CANNON LOAD BANKS, INC.
PAGE 8
SECTION 3
GENERAL SERVICE
There is no regular maintenance required on the load bank. There are no adjustments inside the load bank. It
should however be checked periodically for defective fans, burned out light bulbs, and defective meters.
To remove the fan panel, remove the screws around the outer edge.
The meters can be removed and replaced from the front panel.
The fan grills should be kept free of any trash.
Do not place any objects in the fan or resistor grill.
CANNON LOAD BANKS, INC.
PAGE 1
SECTION 4
FAN REPLACEMENT
The following are steps to take to replace a defective fan.
1. Remove the screws holding the fan panel to the load bank.
2. Remove the wires on the terminal strip coming from the load bank.
3. Drill out the rivets holding the fan (four on each side).
4. Lift up the fan and unplug the wires to the fan. Connect the plug to the new fan.
5. Rivet the new fan back to the fan panel and install the fan guard.
6. Install the wires back on the terminal strip and place the fan panel back on the load bank. Make sure
that the wires are on the proper terminals.
WHITE
G-RED
W-RED
FAN 7,8,9,
10,11,12 FAN1,2
3,4,5,6 FAN 7,8,9,
10,11,12 +
FAN1,2
3,4,5,6 +
FIGURE 4 - 1
CANNON LOAD BANKS, INC.
WIRES TO LOAD
BANK
PAGE 2
SECTION 4
L-69-80 INTERIOR WIRING
RESISTOR PANEL
106 WHT
10 GRY
138 RED
5 VLT
105,106 WHT
1 GRY
4 BRN
2 ORG
3 BLU
7 GRN
5 VLT
6 YEL
9 RED
8 WHT
16 GRN
LR1
115 W-GRY
140 YEL
K3
13 BRN
2 ORG
114 BRN
139 BLU
K2
8 WHT
LR2
10 GRY
LR3
101,102 WHT
LR7
LR8
K6
19 GRY
LR9
21 BLU
117,118 W-ORG
LR14
28 GRY
30 BLU
K9
K8
LR20
43 GRN
39 BLU
53 WHT
167 YEL
47 ORG
LR31
48 BLU
50 VLT
49 BRN
176 YEL
56 O RG
127,128 GRN
62 WHT
LR38
64 BLU
LR43
LR39
LR44
61 GRN
LR45
36 RED
LR24
45 RED
LR30
54 RED
LR36
180 RED
62 WHT
LR40
LR41
68 GRN
66 VLT
LR18
53 WHT
LR35
60 YEL
65 BRN
63 ORG
52 GRN
59 VLT
27 RED
44 WHT
LR29
LR34
58 BRN
181 GRY
43 GRN
51 YEL
LR33
57 BLU
56 ORG
K15
175 BLU
94,95 WHT
59 VLT
68 GRN
173 YEL
174 RED
65 BRN
K14
181 GRY
172 BLU
125,126 W-GRN
171 RED
93,94 WHT
55 GRY
LR23
LR28
LR12
35 WHT
42 YEL
LR27
LR32
34 GRN
41 VLT
LR26
47 ORG
123,124 VLT
166 BLU
K12
50 VLT
38 ORG
124 VLT
164 YEL
165 RED
K11
44 WHT
163 BLU
46 GRY
LR17
LR22
18 RED
26 WHT
33 YEL
40 BRN
LR25
25 GRN
LR16
LR21
38 ORG
95,96 WHT
41 VLT
96,97 WHT
158 YEL
29 ORG
162 RED
119,120 ORG
155 YEL
37 GRY
LR11
32 VLT
LR6
17 WHT
24 YEL
31 BRN
LR19
16 GRN
15 YEL
23 VLT
LR15
29 ORG
121,122 W-VLT
40 BRN
LR13
LR5
LR10
22 BRN
20 ORG
LR37
LR4
12 BLU
14 VLT
13 BRN
11 ORG
100,101 WHT
157 BLU
149 YEL
34 G RN
37 GRY
31 BRN
156 RED
148 BLU
32 VLT
99,100 WHT
35 WHT
25 GRN
154 BLU
118 W-ORG
153 RED
28 GRY
K5
22 BRN
146 YEL
147 RED
19 GRY
102,103 WHT
145 BLU
K13
61 GRN
L3
C
126 W-G RN
L2
B
170 YEL
6,15,24,33,42,51
FS3 ,60,67,134,137,
140,143,146,149,
152,155,158,
161,164,167,170,
173,176,179,103
YEL
RP1
FS2
58 BRN
73 GRN
N
L1
A
55 GRY
TP1
FS1
180,93 WHT
TP2
71 RED
52 GRN
TP3
75,77
BLU
122 W-VLT
TP4
79
YEL
168 RED 169 BLU
3,12,21,30,39,48
,
57,64,133,136,
139,142,145,148,
151,154,157,160,
163,166,169,172,
175,178,102
BLUE
83 GRN
129 BLK
161 YEL
9,18,27,36,
45,54,70,101,
132,135,138,
141,144,147,
150,153,156,
159,162,165,
168,171,174,
177,180 RED
92 WHT
K10
SW3
115 W-GRY
125 W-GRN
121 W-VLT
113 W-BRN
117 W-ORG
127 GRN
114 BRN
119 ORG
123 VLT
116 GRY
49 BRN
SW4
SW5
46 GRY
SW6
SW7
97,98 WHT
91 WHT
109 BRN
SW8
20 ORG
110 ORG
120 ORG
80,82 YEL
54,55YEL
160 BLU
6
5
159 RED
152 YEL
112 G-RED
109 BRN
8
144 RED
3
76,78
BLU
137 YEL
7
SW1
136 BLU
4
135 RED
108 ORG
107 W-RED
K7
26 WHT
1
K4
151 BLU
2
72,74
RED
SW2
23 VLT
150 RED
87,130 WHT
81,85
BLK
98,99 WHT
D4
D3
11 ORG
74 RED
116 GRY
78 BLU
143 YEL
82 YEL
14 VLT
L3
142 BLU
L2
17 WHT
L1
131 WHT
141 RED
M1
81 BLK
103,104 WHT
129 BLK
K1
87 WHT
7 GRN
86 BLK
134 YEL
89 WHT
113 W-BRN
88 BLK
4 BRN
M3
1GRY
133 BLU
M2
104,105WHT
132 RED
FRONT PANEL
67 YEL
69 WHT
LR46
LR47
LR42
70 RED
LR48
RELAY PANEL
K16
92,180 WHT
112 G-RED
5
107 W-RED
6
86 BLK
90 WHT
7
85 BLK
R7
69 WHT
63 ORG
177 RED
178 BLU
179 YEL
R6
D2
84 W-RED
TO T5
ON FAN
PANEL
D1
79,80
YEL
75,76
BLUE
71,72
RED
R3
130 WHT
88 BLK
89 WHT
103 YEL
R2
R4
102 BLU
R5
101 RED
GND
91 WHT
NC
77 BLU
CANNON LOAD BANKS, INC.
BOTTOM PANEL
108 ORG
COM
73,83 GRN
SW9
NO
CT1
SIDE PANEL
131 WHT
R1
9,18,27,36,
45,54,61,70,
132,135,138,
141,144,147,
150,153,156,
159,162,165,
168,171,174,
177,101RED
110 ORG
FIGURE 5-1
LEGEND
128 GRN
66 VLT
90 WHT
CT1
D1-D2
D3-4
FS1-3
K1-16
K17
L1-3
LR1-48
M1
M2
M3
RP1
R1
R2
R3-5
R6,7
SW1
SW2
SW3
SW4
SW5-8
SW9
TP1-4
CURRENT TRANSFORMER 250:5
ZENER DIODE , 200V, 5W
ZENER DIODE , 150V, 5W
FUSE, 250A, 600V
RELAY, 120VAC 3PDT 30A, MAG
RELAY, 120VAC 2PDT MIDTEX
LIGHT, NEON 250V
LOAD RESISTOR 25
METER,55-65 HERTZ
METER, 0-250A
METER, 0-600 VOLT
RECEPTACLE, 4 POLE 175A
7.0K RESISTOR 25W
RESISTOR, 12K 11W
RESISTOR, 100 , 5W
RESISTOR 39K , 2W
SWITCH, ROTARY 3 POS METER
SWITCH, TOGGLE DPDT, DELAY
SWITCH, TOGGLE SPST
SWITCH, TOGGLE DPDT MID OFF
SWITCH, TOGGLE DPST
SWITCH, AIR FLOW
TEST PINS
84 W-RED
PAGE 1
SECTION 5
BLANK
FAN PANEL WIRING
8 W-R ED
9 G-GR N
3 G-GR N
FS4
+F1,F2,F3,
F4 ,F5,F6
+F7 ,F8 ,F9,
F10 ,F11,F12
-F1,F2 ,F3 ,
F4,F5,F6
-F7 ,F8,F9,
F10 ,F11,F12
2 ,4 RED
6 ,7 BLK
FROM L OAD
BAN K
V
W-R ED
8 W-R ED
G-R ED
1 G-R ED
WH T
10 WHT
AL L WIR ES FR OM FAN S ARE BL AC K
1 0A
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
3 G-GR N
5 G-GR N
SW 11
11 WH T
1 G-R ED
5 G-GR N
N
L
PS- 1
–
+
6,7 2,4
BL K R ED
F12
SW1 0
1 0-WH T
11 -WHT
FIGURE 5 - 2
CANNON LOAD BANKS, INC.
PAGE 3
SECTION 5
BLANK
L-69-80 SCHEMATIC
AC1
RP1
Ln1
FS1
Ln2
FS2
Ln3
N
FS3
L2
L1
L3
GND
FS4
GND
CT1 M2
R5
K2
LR 1
LR 2
K2
LR 3
LR 4
K2
LR 5
LR 6
K4
LR 7
LR 8
K4
LR 9
LR 10
K4
LR 11
LR 12
K7
LR 13
LR 14
D2
K1
R4
K1
TP4
TP1
TP2
K17
TP3
R3
K1
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
K3
K3
-+
K3
PS-1
N
L
SW2
K5
K5
L3 SW1
L2
L1
SW11
SW10
M3
K5
D4
R6
L3
L1
K6
K6
K9
K9
K17
L2
SW4 12.5KW(10 KW)
K1
K2
SW5 12.5KW(10 KW)
K3
K4
K9
K10
SW6 25KW(20 KW)
K5
K6
K7
K10
K8
K10
SW7 25KW(20 KW)
K9
K10
K13
K11
K13
K13
M1
SW3
R7
K6
R1
SW9
D3
K7
LR 15
LR 16
K7
LR 17
LR 18
K8
LR 19
LR 20
K8
LR 21
LR 22
K8
LR 23
LR 24
K11
LR 25
LR 26
K11
LR 27
LR 28
K11
LR 29
LR 30
K12
LR 31
LR 32
K12
LR 33
LR 34
K12
LR 35
LR 36
K15
LR 37
LR 38
K15
LR 39
LR 40
K15
LR 41
LR 42
K16
LR 43
LR 44
K16
LR 45
LR 46
K16
LR 47
LR 48
D1
R2
LEGEN D
AC 1
CT1
D1 -D2
D3 -4
FN1-1 2
FS1-3
FS4
K1 -16
K1 7
L1-3
LR1-4 8
M1
M2
M3
Ps1
RP1
R1
R2
R3 -5
R6 ,7
SW1
SW2
SW3
SW4-8
SW9
SW10
SW11
TP1-4
12 0VAC RECEPTACLE
CU RREN T TRAN SFORMER 25 0:5
ZENER DIODE, 2 00V, 5W
ZENER DIODE, 1 50V, 5W
FA N 2 4VDC
FUSE, 2 50A , 60 0V
FUSE, 1 0A
RELAY, 1 20VAC 3 PDT 30 A
RELAY, 1 20VAC 4 PDT 5A
LIGHT, NEON 250 V
LOA D RESISTOR 25
METER,50-6 5 HERTZ
METER, 0 -250 AMP
METER, 0 -600 VOLT
POWER SU PPLY
REC EPTACLE, 4 POLE
RESISTOR,7.0K ,25 W
RESISTOR, 12K , 11W
RESISTOR, 100 , 5W
RESISTOR, 39K , 2W
SWITCH , ROTAR Y 3 POS METER
SWITCH , TOGGLE DPDT, DELAY
SWITCH , TOGGLE DPDT, MID OFF
SWITCH , TOGGLE DPST
SWITCH , AIR FLOW
THERMA L SWITCH 15 5°
MERC URY SWITCH
TEST PINS
K12
SW8 25KW(20 KW)
K13
K14
K14
K15
K14
K14
CANNON LOAD BANKS, INC.
K16
( ) IND IC ATES KW AT 20 8 VOLTAGE
FIGURE 5-3
PAGE 5
SECTION 5
BLANK