SCH Collectors Installation & Operation Manual

3 Roof Attachment Installation (continued)

Installation of roof attachment types

The solar thermal collectors are capable of being mounted to several different types of roofing with a wide variety of mounting hardware available from Lochinvar.

Double hanger bolt for universal fastening #SRM20001

Universal fixture for parallel and inclined installation on various roof types and freestanding installation on sufficiently anchored frames. Two hanger bolts are to be installed on the roof as vertically as possible with a spacing of 4 3/4" to 6 3/4". The two are connected by an intermediate plate.

Install double hanger bolt

1.

Determine roof type. Inspect the structural integrity of

 

the roof and the durability of the roof materials.

2.

Determine the number of collectors needed for the

 

installation and the number of required roof attachments

 

from Table 3B or 3C on page 11.

￿CAUTION

The hanger bolt must be screwed into a support capable of bearing the required static load (generally rafters).

Install the hanger bolt using a field supplied anchoring adapter.

The roofing must be capable of withstanding the pressure needed to compress the gasket.

Beware of linear expansion in sheet metal that prevents a linear expansion and can cause lifting of the sheet.

3.

Determine collector connection points (spacing).

 

Measure the spacing of the rafters or trusses to confirm

 

the dimensions and prepare for the system layout

 

(reference the Roof Attachment Spacing Section on

 

page 12).

4.

Pre-drill two 9mm holes, a minimum of 4 inches deep

 

into the roof substructure (see FIG. 3-3), perpendicular

 

to the roof with a spacing of 4 3/4" to 6 3/4".

5.

Install the hanger bolts into the pre-drilled holes

 

until the threads are level with the roof’s surface.

Figure 3-3Pre-Drill 9mm Holes Into Substructure

Unpacking and checking parts

When unpacking the system, check the model names of the components of each system and check to be sure you have the correct number of parts (see FIG. 3-2).

Figure 3-2Kit #SRM20001 - Double Hanger Bolt Kit Components

INSTALL HANGER BOLT(S)

PRE-DRILL TWO (2) 9MM HOLES PERPENDICULAR TO THE ROOF (APPROX. 4 IN. DEEP)

HANGER BOLT (M12) (2X)

DOUBLE HANGER BOLT PLATE (1X)

WASHER (M12) (2X)

HEX NUT W/FLANGE (M12) (6X)

HANGER BOLT SEAL (2X)

SQUARE DISK (1X)

HEX BOLT (M8) (1X)

HEX NUT (M8) (1X)

WASHER (M8) (1X)

6.Slide the hanger bolt seals over the machine threads until the seal is touching the roof’s surface (FIG. 3-4A).

7.Slide the washer (M12) on top of the hanger bolt seal (FIG. 3-4A).

8.Thread the hex nut with flange (flange side down) onto the washer, compressing the washer and hanger bolt seal to the roof (FIG. 3-4B).

9.Install the second hex nut with flange (flange side up) until the hex nut reaches the desired substructure height (FIG. 3-4B).

10.Slide the hanger bolt plate onto the flange of the hex nut installed in Step 9 (FIG.’s 3-4A and 3-4B).

11.Install the remaining hex nut with flange (flange side down) to the top of the double hanger bolt plate. Tighten and secure both hex nuts (top and bottom) to the double hanger bolt plate.

12.Make certain all double hanger bolt plates are facing the same direction.

13

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Lochinvar SCH-I-O Installation of roof attachment types, Double hanger bolt for universal fastening #SRM20001

SCH-I-O specifications

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