Tamarack TTP-4 4 Module Top of Pole Mount Installation Guide

Tamarack TTP-4 4 Module Top of Pole Mount

Disclaimer
This manual describes proper installation procedures and provides necessary standards required for product reliability. Warranty details are available on our website. www.tamaracksolar.com
All installers must thoroughly read this manual and have a clear understanding of the installation procedures prior to installation. Failure to follow these guidelines may result in property damage, bodily injury or even death.
Structural parts of this mount are made with painted steel which will show signs of rust in areas that get scratched during assembly. It is good practice to repaint scratched parts after assembly.

Installer Responsibilities

• Follow all applicable local or national building and fi re codes, including any that may supersede this manual.
• Electrical installation should be conducted by a licensed and bonded electrician or solar contractor.
• Module maintenance or removal must not break the bonding path of the system.
• Ensure all products used are appropriate for the installation and array under the site’s loading conditions.
• Use only Tamarack parts or parts approved by Tamarack; substituting parts may void any applicable warranty.
• Comply with all applicable fi re codes including, but not limited to, keeping walkways clear.
• Ensure bare copper grounding wire does not contact aluminum and zinc-plated steel components, to prevent risk of galvanic corrosion.
• If loose components or loose fasteners are found during periodic inspection, retighten immediately. If corrosion is found, replace aff ected components immediately.
• Provide an appropriate method of direct-to-earth grounding according to the latest edition of the National Electrical Code, including NEC 250: Grounding and Bonding, NEC 690: Solar Photovoltaic Systems, and CSA C22.1, Safety Standard for Electrical Installations, Canadian Electrical Code, Part 1
• Disconnect AC power before servicing or removing microinverters and power optimizers.
• Review module manufacturer’s documentation to ensure compatibility and compliance with warranty terms and conditions.
• Maximum Series Fuse Rating is 20 Amps.

TOOLS Required

• 1-1/8-inch Wrench
• 3/4-inch S ocket
• 9/16-inch S ocket
• 1/2-inch S ocket
• Ratchet to fi t Sockets
• Crescent Wrench
• Torque Wrenches (settings range from 6 to 100 foot-pounds. Th is may require multiple wrenches)
• Tape Measure
• Angle Finder
• Compass
• Ladder

Pole Mount – TTP Series

TTP-Series Pole Mount Components

| Part #| Part Description| TTPͲ4| TTPͲ4HW| TTPͲ6| TTPͲ6HW
---|---|---|---|---|---|---
Cap Assembly Ͳ 90323| 92062| Pole Cap, Pivot 6Ͳinch pipe, 2.5Ͳinch holes| 1| 1| 1| 1
92063| Pole Cap 6Ͳinch Backplate| 1| 1| 1| 1
92064| Array Tilt Adjuster Arm| 1| 1| 1| 1
92065| Pole Top Cover 6Ͳinch| 1| 1| 1| 1
92067| Pole Cap Bolts 3/4 Ͳ10 x 9Ͳinch| 2| 2| 2| 2
92068| Pole Cap Top Support Bolt 3/4Ͳ10 x 8Ͳinch| 1| 1| 1| 1
92009| Pole Cap FlangeNut 3/4Ͳ10| 3| 3| 3| 3
92010| Set Bolts 1/2 Ͳ13 x 1Ͳ1/2inch| 6| 6| 6| 6
92011| Hex Bolt 1/2Ͳ13 x 1Ͳ1/2Ͳinch for Adjuster| 1| 1| 1| 1
92012| Flange Nut ½ Ͳ 13 for Adjuster| 1| 1| 1| 1
92013| Adjuster UͲBolt д” x 3Ͳ1/8Ͳinch| 1| 1| 1| 1
HͲFrame Ͳ 90439| 92016| Rectangular Tube 3×2 x 0.12 wall| 2| | 2|
92036| Rectangular Tube 3×2 x 0.188 wall| | 2| | 2
92017| Suport Pipe 2Ͳinch Sch 40| 1| | 1|
92037| Suport Pipe 2Ͳinch Sch 80| | 1| | 1
92018| Pivot Pipe 2.5Ͳinch Sch 40| 1| | 1|
92038| Pivot Pipe 2.5Ͳinch Sch 80| | 1| | 1
92020| Hex Bolt 1/2Ͳ13 x 3Ͳ1/2Ͳinch| 4| 4| 4| 4
92021| Flat Washer 1/2Ͳinch| 4| 4| 4| 4
92022| UͲBolt w/Nuts for 2Ͳinch Pipe| 8| 8| 8| 8
93041| 5Ͳfoot x 2Ͳinch Sch 40 Pipe| 4| | 4|
92051| 5Ͳfoot x 2Ͳinch Sch 80 Pipe| | 4| | 4
92042| Pipe Coupler 2Ͳinch NPT| 2| | 2|
Module Mounting Rails| 89488| 3.1 Rail 85Ͳinch| 4| 4| 4| 4
89600| 3.1 Rail 42.5Ͳinch| 0| 0| 4| 4
89938| Module Rail Splice with Bolts and Nuts| 0| 0| 2| 2
88832| Module Mounting Clamp| 12| 12| 16| 16
88955| Pipe Mount w/UͲBolt| 8| 8| 8| 8
88788| Module Rail End Caps| 4| 4| 4| 4
88931| Ground Lug| 2| 2| 2| 2
88971| Module Lead Clips| 6| 6| 9| 9

Foundation Hole and Pole Guidelines

• The suggestions below are recommendations only. It is the installer’s responsibility to validate foundation parameters prior to installation, a local geotechnical report may be required to assess soil conditions. We recommend consulting with a local engineer familiar with local regulations and build site requirements, including soil conditions, terrain, and load criteria (wind, snow, seismic). All
  of these parameters may impact foundation requirements.

• If you are planning to make seasonal adjustments to the solar array angle, use the steepest angle that you plan to use for foundation and pole pipe sizing to insure that the pole and foundation are strong enough to support the array, and that the desired minimum ground clearance is maintained, at all projected angles.

• Highlighted lines in the tables on the next 2 pages require schedule 80 pipe for the main support pipe.

• Dig hole according to recommended depth and diameter. Remove or properly compact any loose material at the bottom of the hole.

• The pole length listed in the following tables are based on having the pole installed 2-3 inches from the bottom of the dug holes. Use a brick, concrete block, tiles, or other non-organic solid material at the bottom of the hole to support the pole on, allowing it to be raised above the bottom of the hole and allowing the concrete to fully encapsulate the pipe pole. If using a thicker material, be sure to allow for the added thickness when calculating the above-ground and total pole lengths.

• Set pole in hole and use a level to insure that it is straight and plumb in all directions.

• Brace pole to prevent movement while pouring concrete. Pouring so that concrete is in direct contact with the soil is recommended. If forming or using sonotube, properly compact backfi ll. Allow concrete to cure for recommended length of time.

Soil Classifi cations

• If in doubt about the soil type and holding strength, consult a local engineer.
• Class 3 – Sandy Gravel and/or Gravel – Lateral Bearing Pressure – 200 lbs/sq ft below natural grade
• Class 4 – Sand; silty sand, clayey sand, silty gravel, and clayey gravel – Lateral Bearing Pressure – 150 lbs/sq ft below natural grade
• Class 5 – Clay, sandy clay, silty clay, silt and sandy silt – Lateral Bearing Pressure – 100 lbs/sq ft below natural grade

TTPͲ4 and TTPͲ4HW for Array Ground Clearance of 3 Feet

Foundation Hole Depth, Height of Pole Above Ground and Total Pole Length for Ground Clearance of 3 Feet at Lowest Part of

the Array & Exposure Catgory B For Various Soil Class and Foundation Hole Diameter. Vertical Pipe is 6-inch Schedule 40 (Highlighted sections require 6-inch Schedule 80 Pipe)

Soil Type ї| Class 3| Class 4| Class 5
Foundation Diameter ї| 24″| 36″| 24″| 36″| 24″| 36″
Array Tilt Angle

љ

| Wind Speed (mph) љ|

Pipe Above Ground (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

20°

| 100|

4.1

| 3.3| 7.2| 2.8| 6.7| 3.6| 7.5| 3.1| 7.0| 4.3| 8.2| 3.6| 7.5
120| 3.8| 7.7| 3.2| 7.1| 4.2| 8.1| 3.6| 7.5| 5.0| 8.9| 4.2| 8.1
140| 4.3| 8.2| 3.6| 7.5| 4.8| 8.7| 4.1| 8.0| 5.6| 9.5| 4.8| 8.7

30°

| 100|

4.7

| 3.8| 8.2| 3.2| 7.6| 4.2| 8.6| 3.6| 8.0| 5.0| 9.4| 4.2| 8.6
120| 4.4| 8.8| 3.7| 8.1| 4.9| 9.3| 4.2| 8.6| 5.8| 10.2| 4.9| 9.3
140| 5.0| 9.4| 4.2| 8.6| 5.6| 10.0| 4.7| 9.1| 6.6| 11.0| 5.6| 10.0

40°

| 100|

5.1

| 4.3| 9.2| 3.6| 8.5| 4.8| 9.7| 4.1| 9.0| 5.6| 10.5| 4.8| 9.7
120| 4.9| 9.8| 4.2| 9.1| 5.5| 10.4| 4.7| 9.6| 6.5| 11.4| 5.5| 10.4
140| 5.6| 10.5| 4.8| 9.7| 6.3| 11.2| 5.3| 10.2| 7.4| 12.3| 6.3| 11.2

50°

| 100|

5.5

| 4.7| 10.0| 4.0| 9.3| 5.2| 10.5| 4.4| 9.7| 6.1| 11.4| 5.2| 10.5
120| 5.4| 10.7| 4.6| 9.9| 6.0| 11.3| 5.1| 10.4| 7.1| 12.4| 6.0| 11.3
140| 6.1| 11.4| 5.2| 10.5| 6.9| 12.2| 5.8| 11.1| 8.1| 13.4| 6.9| 12.2

60°

| 100|

5.9

| 5.0| 10.6| 4.2| 9.8| 5.6| 11.2| 4.7| 10.3| 6.5| 12.1| 5.6| 11.2
120| 5.7| 11.3| 4.9| 10.5| 6.4| 12.0| 5.5| 11.1| 7.6| 13.2| 6.4| 12.0
140| 6.5| 12.1| 5.5| 11.1| 7.3| 12.9| 6.2| 11.8| 8.6| 14.2| 7.3| 12.9
TTPͲ4 and TTPͲ4HW for Array Ground Clearance of 6 Feet

Foundation Hole Depth, Height of Pole Above Ground and Total Pole Length for Ground Clearance of 6 Feet at Lowest Part of

the Array & Exposure Catgory B For Various Soil Class and Foundation Hole Diameter. Vertical Pipe is 6-inch Schedule 40 (Highlighted sections require 6-inch Schedule 80 Pipe)

Soil Type ї| Class 3| Class 4| Class 5
Foundation Diameter ї| 24″| 36″| 24″| 36″| 24″| 36″
Array Tilt Angle

љ

| Wind Speed (mph) љ|

Pipe Above Ground (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

20°

| 100|

7.13

| 3.80| 10.68| 3.30| 10.18| 4.20| 11.08| 3.60| 10.48| 4.90| 11.78| 4.20| 11.08
120| 4.40| 11.28| 3.70| 10.58| 4.90| 11.78| 4.20| 11.08| 5.70| 12.58| 4.90| 11.78
140| 4.90| 11.78| 4.30| 11.08| 5.50| 12.38| 4.70| 11.58| 6.40| 13.28| 5.50| 12.38

30°

| 100|

7.65

| 4.40| 11.80| 3.70| 11.10| 4.90| 12.30| 4.20| 11.60| 5.70| 13.10| 4.90| 12.30
120| 5.00| 12.40| 4.30| 11.70| 5.60| 13.00| 5.80| 12.20| 6.60| 14.00| 5.60| 13.00
140| 5.70| 13.10| 4.80| 12.20| 6.30| 13.70| 5.40| 12.80| 7.40| 14.80| 6.30| 13.70

40°

| 100|

8.12

| 4.90| 12.77| 4.20| 12.07| 5.40| 13.27| 4.70| 12.57| 6.40| 14.27| 5.40| 13.27
120| 5.60| 13.47| 4.80| 12.67| 6.30| 14.17| 5.40| 13.27| 7.40| 15.27| 6.30| 14.17
140| 6.30| 14.17| 5.40| 13.27| 7.10| 14.97| 6.00| 13.87| 8.30| 16.17| 7.10| 14.97

50°

| 100|

8.53

| 5.30| 13.58| 4.50| 12.78| 5.90| 14.18| 5.00| 13.28| 6.90| 15.18| 5.90| 14.18
120| 6.10| 14.38| 5.20| 13.48| 6.80| 15.08| 5.80| 14.08| 8.00| 16.28| 6.80| 15.08
140| 6.80| 15.08| 5.80| 14.08| 7.70| 15.98| 6.50| 14.78| 9.00| 17.28| 7.70| 15.98

60°

| 100|

8.86

| 5.60| 14.21| 4.80| 13.41| 6.20| 14.81| 5.30| 13.91| 7.30| 15.91| 6.20| 14.81
120| 6.40| 15.01| 5.50| 14.11| 7.20| 15.81| 6.10| 14.71| 8.40| 17.01| 7.20| 15.81
140| 7.20| 15.81| 6.20| 14.81| 8.10| 16.71| 6.90| 15.51| 9.50| 18.11| 8.10| 16.71
TTPͲ6 and TTPͲ6HW for Array Ground Clearance of 3 Feet

Foundation Hole Depth, Height of Pole Above Ground and Total Pole Length for Ground Clearance of 3 Feet at lowest part of the array & Exposure Catgory B For Various Soil Class and Foundation Hole Diameter. Vertical Pipe is 6-inch Schedule 40 (Highlighted sections require 6-inch Schedule 80 Pipe)
Soil Type ї| Class 3| Class 4| Class 5
Foundation Diameter ї| 24″| 36″| 24″| 36″| 24″| 36″
Array Tilt Angle љ| Wind Speed (mph) љ|

Pipe Above Ground (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

20°

| 100|

4.71

| 3.9| 8.4| 3.3| 7.8| 4.3| 8.8| 3.7| 8.2| 5.1| 9.6| 4.3| 8.8
120| 4.5| 9.0| 3.8| 8.3| 5.0| 9.5| 4.2| 8.7| 5.9| 10.4| 5.0| 9.5
140| 5.0| 9.5| 4.3| 8.8| 5.7| 10.2| 4.8| 9.3| 6.7| 11.2| 5.7| 10.2

30°

| 100|

5.50

| 4.6| 9.9| 4.0| 9.3| 5.2| 10.5| 4.4| 9.7| 6.1| 11.4| 5.2| 10.5
120| 5.4| 10.7| 4.6| 9.9| 6.0| 11.3| 5.1| 10.4| 7.1| 12.4| 6.0| 11.3
140| 6.1| 11.4| 5.2| 10.5| 6.8| 12.1| 5.8| 11.1| 8.1| 13.4| 6.8| 12.1

40°

| 100|

6.21

| 5.3| 11.3| 4.5| 10.5| 5.9| 11.9| 5.0| 11.0| 6.9| 12.9| 5.9| 11.9
120| 6.2| 12.1| 5.2| 11.2| 6.8| 12.8| 5.8| 11.8| 8.0| 14.0| 6.8| 12.8
140| 6.9| 12.9| 5.8| 11.8| 7.7| 13.7| 6.6| 12.6| 9.1| 15.1| 7.7| 13.7

50°

| 100|

6.83

| 5.7| 12.3| 4.8| 11.4| 6.4| 13.0| 5.4| 12.0| 7.5| 14.1| 6.4| 13.0
120| 6.6| 13.2| 5.6| 12.2| 7.4| 14.0| 6.3| 12.9| 8.7| 15.3| 7.4| 14.0
140| 7.4| 14.0| 6.3| 12.9| 8.3| 14.9| 7.1| 13.7| 9.9| 16.5| 8.3| 14.9

60°

| 100|

7.33

| 6.1| 13.2| 5.2| 12.3| 6.8| 13.9| 5.8| 12.9| 8.0| 15.1| 6.8| 13.9
120| 7.0| 14.1| 6.0| 13.1| 7.8| 14.9| 6.7| 13.8| 9.2| 16.3| 7.8| 14.9
140| 7.9| 15.0| 6.7| 13.8| 8.9| 16.0| 7.5| 14.6| 10.5| 17.6| 8.9| 16.0

TTPͲ6 and TTPͲ6HW for Array Ground Clearance of 6 Feet

Foundation Hole Depth, Height of Pole Above Ground and Total Pole Length for Ground Clearance of 6 Feet at lowest part of the

array & Exposure Catgory B For Various Soil Class and Foundation Hole Diameters. Vertical Pipe is 6-inch Schedule 40 (Highlighted sections require 6-inch Schedule 80 Pipe)

Soil Type ї| Class 3| Class 4| Class 5
Foundation Diameter ї| 24″| 36″| 24″| 36″| 24″| 36″
Array Tilt Angle љ| Wind Speed (mph) љ|

Pipe Above Ground (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

| Hole Depth (ft)|

Total Pipe Length (ft)

20°

| 100|

7.71

| 4.4| 11.9| 3.8| 11.3| 4.9| 12.4| 4.2| 11.7| 5.8| 13.3| 4.9| 12.4
120| 5.1| 12.6| 4.4| 11.9| 5.7| 13.2| 4.9| 12.4| 6.7| 14.2| 5.7| 13.2
140| 5.7| 13.2| 4.9| 12.4| 6.4| 13.9| 5.5| 13.0| 7.5| 15.0| 6.4| 13.9

30°

| 100|

8.5

| 5.3| 13.6| 4.5| 12.8| 5.9| 14.2| 5.0| 13.3| 6.9| 15.2| 5.9| 14.2
120| 6.0| 14.3| 5.2| 13.5| 6.8| 15.1| 5.8| 14.1| 7.9| 16.2| 6.8| 15.1
140| 6.8| 15.1| 5.8| 14.1| 7.6| 15.9| 6.5| 14.8| 9.0| 17.3| 7.6| 15.9

40°

| 100|

9.21

| 5.8| 14.8| 4.9| 13.9| 6.4| 15.4| 5.5| 14.5| 7.5| 16.5| 6.4| 15.4
120| 6.6| 15.6| 5.7| 14.7| 7.4| 16.4| 6.3| 15.3| 8.7| 17.7| 7.4| 16.4
140| 7.5| 16.5| 6.4| 15.4| 8.4| 17.4| 7.1| 16.1| 9.8| 18.8| 8.4| 17.4

50°

| 100|

9.83

| 6.3| 15.9| 5.4| 15.0| 7.1| 16.7| 6.1| 15.7| 8.3| 17.9| 7.1| 16.7
120| 7.3| 16.9| 6.2| 15.8| 8.2| 17.8| 7.0| 16.6| 9.6| 19.2| 8.2| 17.8
140| 8.2| 17.8| 7.0| 16.6| 9.2| 18.8| 7.8| 17.4| 10.8| 20.4| 9.2| 18.8

60°

| 100|

10.33

| 6.7| 16.8| 5.8| 15.9| 7.5| 17.6| 6.4| 16.5| 8.8| 18.9| 7.5| 17.6
120| 7.7| 17.8| 6.6| 16.7| 8.7| 18.8| 7.4| 17.5| 10.2| 20.3| 8.7| 18.8
140| 8.7| 18.8| 7.4| 17.5| 9.8| 19.9| 8.3| 18.4| 11.5| 21.6| 9.8| 19.9

Pole Mount – TTP Series

Step One – Pole Cap Assembly

• Place the Pole Cover on top of the mounting pole.
• Put the 3/4 x 9-inch Cap Support Bolt through the two top holes in the rear half of the Pole Cap and install nut and tighten firmly. This bolt keeps the Pole Cap at the top of the post.
• Put the two 3/4 x 8-inch bolts into the back half of the Pole Cap, then through the front half, and put the nut loosely on the bolt.
• Slide the assembled Pole Cap over the 6-inch vertical pole.
• Rotate the Pole Cap on the post so that the front (larger) half of the Pole Cap is on the side of the pole the array will be facing.
• Loosely install the four 1/2-inch set screws in the threaded holes on the rear half of the Pole Cap. Do not tighten at this time.
• Securely tighten the two 3/4” bolts in the Pole Cap assembly, but do not fully torque to spec until fi final assembly is complete.

Step Two – Assemble H-Frame

• Slide the 2-1/2-inch Pivot Pipe (2-7/8” O.D.) through the holes on the side of the front half of the Top Cap and center it in the front half of Top Cap.
• Bolt a 2 x 3-inch Tube to each side of the Pivot Pipe with a 1/2 x 3-inch bolt, fl at washer and split lock washer. Use the hole in the 2” x 3” Tube that is 19.5-inches from one end of the tube.
• Bolt the 2-inch Adjuster Pipe (2-3/8-inch O.D.) between the two 2 x 3-inch Tubes with a 1/2 x 3- inch bolt, fl at washer and split lock washer on each side.

Step Three – Assemble Adjuster Arm

• Attach the Adjuster Arm to the Adjuster Pipe with a 2-3/8-inch U- bolt and two flange nuts as pictured at right. Tighten your hand tight for now.
• Using the hole in the Adjuster Arm which sets the 2 x 3-inch rectangular tubes in an approximately horizontal position for assembly purposes, attach the Adjuster Arm to the tab provided on the rear of the Pole Cap with a 1/2 x 1-inch bolt. Assemble the bolt fi finger-tight, as the array angle will be readjusted in the final assembly.

Step Four – Rail Support Pipes

• Connect two of the 2-inch Schedule 40 or 80 x 5-foot long Rail Support Pipes together using a 2-inch pipe coupling and thighten with two pipe wrenches. Repeat with the remaining two 2-inch Schedule 40 or 80 x 5- foot long Rail Support Pipes and coupling. HW versions if this mount are supplied with Schedule 80 pipe.
• Attach the assembled Rail Support Pipes to the fl at ends of the 2 x 3-inch Rectangular Tubing using two 2- 3/8-inch x 1/2-inch U-bolts at the end of each 2 x 3-inch tube. Center these Pipes on the assembly
• Tighten the nuts on the U-bolts to 40 ft -lbs.

Pole Mount – TTP Series
Step Five – Module Mounting Rail Assembly

• For TTP-4 and TTP-4HW Mounts, use the 85-inch long Module Mounting Rails provided.
• For the TTP-6 and TTP-6HW mounts, assemble four 127.5-inch Module

Mounting Rails as follows

1. Splice one 85-inch rail and one 42.5 rail together using the provided Splice and the two 5/16 x 1.125-inch bolts and Channel Nuts. Slip the Splice 5-inches into the end of one rail section, place a Channel Nut and bolt approximately 2.5-inches from the rail end and tighten.
2. Slide the second section of rail over the splice, butting the two rail ends together, and repeat the Channel Nut installation process with the second Channel Nut and bolt.
3. Repeat the processes in #1 and #2 above with the other three 85-inch and 42.5-inch rail sections and Splices.
   • Tighten all of the Splice bolts in the four completed 127.5-inch assemblies to 12 ft-lbs.

Step Six – Attach Module Mounting Rails

• Th e Module Mounting Rails should be mounted on the Rail Support Pipes in the location where they will be approximately under the mounting holes in the frame of the PV modules that you are using, or at a position that is 1/4 of the length of the PV module from each end of the module.
• Locate Rail positions on the Rail Support Pipes and place one Pipe Mount on the pipe in these positions.
• Place one of the Module Mounting Rails on two of the Pipe Mounts installed on the Rail Support Pipes, center it in the north/south direction so it extends past both Support Pipes the same distance. Make sure that the Pipe Mount slips into both of the mounting features on the bottom of the rails (see drawing at right). Tighten the the 5/16-inch bolts with a 1/2-inch socket to 12 ft -lbs.
• Repeat this for the next three Module Mounting Rails.

Step Seven – System Grounding

• Tamarack Module Mounting Rails and the PV module frames are electrically bonded together by the Tamarack Module Clamps. Th is creates a single electrically bonded unit for grounding purposes per UL 2703 requirements. One Ground Lug is required to provide equipment grounding for each column of PV modules.
• A Ground Lug can be attached at any location desired on either one of the two Module Support Rails in each column.
• Connect both ground lugs to the ground wire in the system according to local code.

Step Eight – Mount PV Modules on Rails

• Before mounting the PV modules to the pole mount, map out where you want the wiring junction boxes, and output cables, on the backs of the modules to be located.
• To center the modules on the rails, calculate the amount of excess Module Mounting Rail length you will have. Th is is dependent on the width of the PV modules that you are using.
  1. Add together the widths of the modules in a column, and add 1/2-inch for each space between the mod-ules in the column.
  2. For TTP-4 and TTP-4HW: subtract the above calculated number from 85. For TTP-6 and TTP-6HW subtract the above calculated number from 127.5
  3. This will tell you the total excess length of the Module Mounting Rails that you will have based on the width of the particular PV modules that you are mounting.

Pole Mount – TTP Series

• Start module installation at the bottom of the fi rst column. Measure up the rail by by 1/2 of the distance calculated in #2 above. Place a Module Clamp on each of the Module Mounting Rails at this distance. Be sure to put the side of the top clamp with two bonding pins toward the module frame.
• Center the fi rst module east to west over the rails and hold in place. To allow for at least 1/2-inch of space between the two columns of modules, make sure that the inside edge of the module’s frame is at least 1/4” outward from the center of the Rail Support Pipes. You can use the 2-inch pipe couplings in the assembled Rail Support Pipes to determine where the center is. Make sure that the module is straight and level on the rails and tighten the two end clamp bolts to 108 inch-pounds (9 foot-pounds).
• Install one Module Clamp in each rail on the other side of the first  module, and slide it down so that the inside of the clamp contacts the frame of the fi rst module. Th e springs will hold the clamps in place prior to tightening. Place the second module on the rails, align it with the fi rst module, and slide down and fully into the two mid-clamps. Tighten the mid-clamp bolts to 144 inch-pounds (12 foot-pounds) to fully secure the module.
• Install the third module in the column on TTP-6 or TTP-6HW in the same manner.
• On the top edge of the last module of the fi rst column, install the two Module Clamps so that the sides with the two stainless-steel pins are facing in toward the module frame, and the clamp is tight up against the module frame. Tighten the two end clamp bolts to 108 inch-pounds (9 foot-pounds).
• Install the next column of modules in the same manner. Leave at least 1/2-inch of spacing between the columns.
• Do a fi nal check to be sure that all bolts and installation hardware on the array is properly tightened to the specifi ed torque values.

Final Assembly

• To set the array tilt to the desired angle, remove the previously installed 1/2 x 1-inch bolt from the Adjuster Arm, tilt the array to the desired angle, lining up the hole in the Adjuster Arm that is closest to the correct angle with the hole in the tab on the Pole Cap assembly. Insert the 1/2-inch bolt back through the Adjuster Arm and tab, replace the nut, and tighten to 40 foot-pounds..
• Tighten the U-bolt on the Adjuster Arm to 12 ft -lbs.
• Rotate the whole array around the pole to point in the desired direction. Tighten the 3/4-inch nuts on the Pole Cap to 100 ft -lbs.
• Tighten all of the 1/2-inch set screws on the Pole Cap to 40 ft -lbs with a 3/4-inch socket

References

• Home | Tamarack Solar Products | Mounts for Solar Panels

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