Product #7769
L
ARGE
S
URGE
-P
ROTECTOR
S
HELTER
The weather-resistant Large Surge-Protector Shelter (simply referred to as the
shelter in this manual) provides protection from the elements for Surge Protectors (not included) when located outside. Surge Protectors (Davis Product
#7767) must be purchased separately.
CAUTION:
Davis Instruments assumes no liability for any injury or damage caused directly or indirectly by
the installation or use of this product.
C
OMPONENTS
The Large Surge Protector Shelter includes the following components. Please
make sure that you have all the components before continuing.
M
AIN COMPONENTS
Page 2 Large Surge-Protector Shelter
The hardware kit included with the shelter includes the following components.
Please make sure that you have all the components before continuing.
H
ARDWARE
K
IT
C
OMPONENTS
The ground lug kit included with the shelter includes the following components. Please make sure that you have all the components before continuing.
G
ROUND
L
UG
K
IT
C
OMPONENTS
T
OOLS
AND
M
ATERIALS
N
EEDED
FOR
I
NSTALLATION
You may need some of the following tools and materials in order to install the
shelter.
✦
Surge Protectors (Davis Product #7767)
The shelter may accommodate up to twelve surge protectors.
✦
Medium Flat Head Screwdriver
✦
Medium Phillips Head Screwdriver
✦
Wrench or 3/8” Nut Driver
✦
Large Adjustable Wrench (1 3/8” Opening)
✦
Wire Cutter
✦
Wire Stripper or Knife
✦
Pliers
✦
Electrical Tape and/or Silicone Caulking
Attaching Cable Strain Reliefs Page 3
A
TTACHING
C
ABLE
S
TRAIN
R
ELIEFS
Attach both strain reliefs to the shelter as shown below. You will need to install
the strain reliefs before running cables into the shelter. Secure the strain reliefs
by tightening the lock nuts. Do not tighten the compression nuts until you have
attached wires to the surge protectors (see “Attaching Wires to Surge Protectors” on page 8).
I
NSTALLING
S
TRAIN
R
ELIEFS
I
NSTALLING
S
URGE
P
ROTECTORS
AND
G
ROUND
W
IRES
Follow the instructions below to install surge protectors and ground wires in
the shelter.
Installing Surge Protectors
1. Attach the bottom end of each ground strap to the shelter using #6 self-tapping
screws and # 6 washers as shown below.
Do not attach the top end of the ground strap to the shelter yet.
A
TTACHING
G
ROUND
S
TRAPS
Page 4 Large Surge-Protector Shelter
2. Slide the surge protectors beneath the ground straps.
Fill in starting from the bottom of the shelter. Surge protectors install in
pairs, which should be positioned together as shown below. Position each
surge protector so the hook fits over the ridge provided on the back panel of
the shelter. Make sure the ground plates overlap.
3. Secure each pair of surge protectors in place using a #10 screw, washer, lock washer,
and hex nut as shown below.
Use the #10 x ∫ ” (12.5 mm) screws for the top surge protector pairs. Use the
#10 x 1” (25 mm) screws for the lowest surge protector pairs. The extra
screw length allows you to attach the ground wire.
P
OSITIONING
AND
S
ECURING
S
URGE
P
ROTECTORS
4. When all surge protectors are installed, secure the top end of each ground strap to
the shelter using #6 self-tapping screws and # 6 washers.
Installing Surge Protectors and Ground Wires Page 5
Installing Ground Lug and Ground Jumpers
1. Attach the ground lug to the bottom of the shelter using a #10-32 x 1” (25 mm) screw ,
washer, lock washer, and hex nut as shown below.
A
TTACHING
G
ROUND
L
UG
2. Slide the spade lug on the end of one ground jumper over the #10-32 screw joining
the lowest pair of surge protectors. Secure in place using a #10 washer, lock washer,
and hex nut.
Repeat on the other side using the second ground jumper.
3. Slide the spade lug on each ground jumper over the end of the #10 screw holding the
ground lug in place. Secure the ground jumper using a #10 washer, lock washer, and
hex nut as shown below.
C
ONNECTING
G
ROUND
J
UMPERS
TO
G
ROUND
L
UG
Page 6 Large Surge-Protector Shelter
M
OUNTING
THE
S
HELTER
The instructions below will show you how to mount the shelter against a wall
or post, on a small pipe, or on a large pipe.
Mounting the Shelter on a Wall or Post
Attach the shelter to the mounting surface in the desired location using the lag
screws and π ” flat washers as shown below.
M
OUNTING
ON
A
W
ALL
OR
P
OST
Mounting On a Small Pipe
Follow the instructions below to mount the shelter onto a pipe with outside
diameter between Ω ” and 1 π ” (19 mm and 31 mm).
1. Hold the rear of the shelter and the 1 ∫ ” U-bolt saddles against the pipe and slide the
ends of the 1 ∫ ” U-bolts through the holes in the saddles and shelter so that the
U-bolts wrap around the pipe as shown below.
2. Secure the shelter using a π ” flat washer and hex nut on each end of the U-bolts.
Tighten the hex nuts until the shelter is firmly attached to the pipe.
M
OUNTING
ON
A
S
MALL
P
IPE
Grounding the Shelter Page 7
Mounting On a Large Pipe
Follow the instructions below to mount the shelter onto a pipe with outside
diameter between 1 ∫ ” and 2 3/8” (38 mm and 60 mm).
1. Hold the rear of the shelter and the 2 π ” U-bolt saddles against the pipe and slide the
ends of the 2 π ” U-bolts through the holes in the saddles and shelter so that the
U-bolts wrap around the pipe as shown below.
2. Secure the shelter using a 5/16” flat washer and hex nut on each end of the U-bolts.
Tighten the hex nuts until the shelter is firmly attached to the pipe.
M
OUNTING
ON
A
L
ARGE
P
IPE
G
ROUNDING
THE
S
HELTER
Ground the shelter using the provided ground wire. If you anticipate heavy
surges, you may wish to use a heavier wire or multiple wires. Cut the ground
wire to the length required to reach from the shelter to a suitable ground, such
as Davis Instruments’ Grounding Kit (Product #7780). The ground wire should
be as short as possible. Strip both ends of the ground wire (remove the spade
lug if necessary) and insert one end into the ground lug. Secure in place by
tightening the ground lug screw. Attach the other end to a suitable ground.
G
ROUNDING
THE
S
HELTER
Product Numbers: 7769
Davis Instruments Part Number: 7395-
115
Large Surge Protector Shelter
Rev. B Manual (7/8/99)
This product complies with the essential protection requirements of the EC EMC
Directive 89/336/EC.
© Davis Instruments Corp. 1996. All rights reserved.
A
TTACHING
W
IRES
TO SURGE PROTECTORS
Before attaching wires to the surge protectors, route the cable into the shelter
by passing the cable up through one of the strain reliefs at the bottom of the
shelter. Consult the Surge Protector manual for instructions on attaching wires
to the surge protectors. If using shielded cable, connect drain wires to each
other or to ground, as shown below.
A
TTACHING WIRES TO THE SURGE PROTECTORS
After attaching all wires, tighten the compression nuts on the strain reliefs to
secure the wires and create a weather-resistant seal. If there is a large air space
around the wires, fill the space by wrapping the wires in electrical tape and/or
sealing with silicone caulking.
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