This manual must only be used by a qualified heating
installer/service technician. Read all instructions
before installing. Perform steps in the order given.
Failure to comply could result in severe personal
injury, death, or substantial property damage.
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or
to important information concerning the life of the product.
DANGER
WARNING
CAUTION
CAUTION
NOTICE
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTICE indicates special instructions on installation, operation, or maintenance that are important but not
related to personal injury or property damage.
2
1 Introduction
SCH Collectors Installation & Operation Manual
The SCH collector is suitable for parallel installations and inclined installations on pitched and flat roofs as well as freestanding
on the ground. It is available as a single-piece large collector in sizes ranging from 65 to 130 ft
2
with inlet and outlet connections of
.86" in diameter. Suitable mounting systems are available for various types of roofing. The SCH collector is delivered in standard
lengths of 9'-10" to 19'-7" and a height of 6'-7", resulting in gross surface areas between 65 and 130 ft².
Area of use: Parallel, inclined, on roof mounting, on tiles, plain tiles, slate, Spanish tiles, tin roofing, flat roofs, and as a
freestanding unit
Technical data
SCH Collector
TypeSCH065SCH090SCH110SCH130
Quantity of Glass Panels3456
Gross area65.66 ft
Aperture surface area58.45 ft
Absorber surface area59.85 ft
External Dimensions (L x W)
1
6'-7" x 9'-10"6'-7" x 13'-2" 6'-7" x 16'-4"6'-7" x 19'-7"
2
2
2
87.19 ft
77.93 ft
79.76 ft
Weight Ratings309 lbs.411 lbs.513 lbs.614 lbs.
SCH mounting hardware + hydraulic connection kits
Part-numberDescription
Parallel installation:
SCA20001 Horizontal aluminum bar 10 ft2
SCA20002 Horizontal aluminum bar 13 ft2
SCA20003 Horizontal aluminum bar 16 ft2
SCA20004 Horizontal aluminum bar 20 ft2
SSK20004 End bracing kit2222
SSK20005 Z-hook kit2333
Hydraulic connection kits: (1 array is max. 2 SCH’s!)
HYK20001 Hydr. conn. kit 2x 6.5' + plug + sensor well1x per collector or array
HYK20002 Hydr. conn. kit 1x 6.5'/1x 13' + plug + sensor well1x per collector or array
HYK20003 Serial hydr. exp. kit for stacked installation1x per array
HYK20004 Parallel hydr. exp. kit for side by side installation1x per array
HYK20005 Serial hydr. exp. kit for side by side installation1x per array
Mechanical connection kits: (optional for installation!)
MCK20001 Mechanical conn. kit for side by side installation1x per array
MCK20002 Mechanical conn. kit for stacked installation1x per array
MCK20003 Cover for piping (for side by side installations)1x per array
Gable bracing kits: (required for non-south facing installation!)
GBK20003 Bracing kit w/ diagonal support1x per collector
3
1 Introduction
SCH Collectors Installation & Operation Manual
How it works...
1. Housing
Powder coated (RAL7016) aluminum frame structure with
an aluminum-sealed PU rigid foam rear wall.
2. Cover
Prismatic solar safety glass, .15" thick, for maximum light
transmission.
3. Insulation
.76" heat resistant, special PU rigid foam and 1.57" mineral
wool with high pressure resistance, emission free, non flammable.
4. Absorber
Full surface absorber, laser welded with highly-selective PVD
coating (PVD = Physical Vapor Deposition), serpentine flow.
5. Collector seal
Aluminum profile system with double temperature and UV resistant silicone seals, emission free.
SCH Collector
7
1
6. Inlet connection
Copper pipes, 22 mm x 0.8 mm.
7. Outlet connection
Copper pipes, 22 mm x 0.8 mm.
8. Absorber coils
10 mm copper, serpentine arrangement.
9. Hydraulic connection kit
Connection set with stainless steel corrugated pipe. For connecting
the collector supply and return to the riser. The corrugated
pipes are available in kits with 2 x 6'-7" or 1 x 6'-7" + 1 x 13'1"
length including sensor well and plug.
10. Sensor well
For measuring the collector outlet temperature directly in
the fluid. The sensor well should be installed on the outlet
connection.
11. Plug
This plug is used on the end collector of each array to complete the
water flow path.
7
5
3
2
8
6
4
10
9
11
9
4
1 Introduction (continued)
SCH Collectors Installation & Operation Manual
SCH Collectors Installation & Operation Manual
Before getting started on your installation be sure to carefully
read the preparation instructions in this section.
WARNING
NOTICE
CAUTION
Installer – Read all instructions,
including this manual before installing.
Perform steps in the order given.
Have your collector(s) serviced/
inspected by a qualified service
technician, at least annually.
Failure to comply with the above could
result in severe personal injury, death or
substantial property damage.
When calling or writing about the
collector – Please have the collector
model and serial number.
Any claims for damage or shortage in
shipment must be filed immediately
against the transportation company by
the consignee.
Factory warranty (shipped with the
collector) does not apply to collectors
improperly installed or improperly
operated.
• You must comply with local
regulations, laws and standards of the
local governing authority.
• The frame must be capable of
withstanding the local snow and wind
loads and permit the correct anchoring
of the collectors in accordance with all
applicable local regulations.
• The load bearing capacity of the roofing
and the frame shall be specially checked
or analyzed by a structural engineer.
• The number of mounting brackets
specified by the Lochinvar/TiSun
manuals and parts sheets is based in an
average collector load bearing per
square foot. The maximum permissible
collector loading per square foot may
be calculated from the number
of mounting brackets, taking into
consideration the permissible loading
on the mounting brackets. If a higher
collector wind and snow loading
(including snow sliding off the roof)
per square foot is required, additional
mounting brackets will have to be
used. Roof pitches in excess of 30°
also represent increased loading;
additional mounting brackets must
also be used for this variant.
CAUTION
CAUTION
CAUTION
Lochinvar/TiSun Solar Thermal Collectors
are not specifically designed for drain back
installations. Consult the factory if drain
back utilization is necessary.
• The mounting substructure must be
capable of withstanding the local
snow and wind loads and permit
correct anchoring of the collectors.
• To avoid damage to the collectors
and mounting frames from snow
sliding off the roof, additional snow
guards must be placed in sufficient
numbers around the collectors and
above the collectors.
• The collectors must be linked with a
lightning arrester system and/or the
building’s ground system by a licensed
electrician.
• Hydraulic connection of the collectors
must be performed according to
Lochinvar/TiSun specifications.
• The collector connections must not be
damaged, soiled or misaligned. Take care
during transport, installation, and
connection of the modules. Do not
remove the header protection caps at the
top and bottom connections of the
collector until just before installation.
• When connecting the modules to the
riser, the Hydraulic Connection Kit
(corrugated pipe) supplied must be
installed. Otherwise, the warranty is
invalidated.
• Do not twist the headers when screwing
the connections together. Hold threaded
connection in the desired position and
tighten clamping ring union nut to
torque.
• Roof penetrations for solar piping must
be adequately sealed against water
ingress.
• Use only the original sensor well
supplied.
• Use only high temperature and glycol
pipe sealing materials.
All piping should be properly insulated to
avoid freezing and/or burn potential.
5
1 Introduction
SCH Collectors Installation & Operation Manual
NOTICE
• Check the materials for any damage
sustained in transport and describe
any damage in writing on the
packing slip where necessary. This
is important to process any needed
freight or delivery damage claims.
• Carefully read through the relevant
installation instructions before
starting the installation and follow
each step.
• Use only the original mounting
components.
• Stainless steel screws may not be
used again once they have been
removed (because of the possibility
of breaking).
• Any conversion or modification
of the Lochinvar/TiSun product
not expressly approved in writing
by the manufacturer shall void the
warranty.
• No liability can be accepted for
damage resulting from failure to
observe the installation instructions.
WARNING
WARNING
A properly sized expansion tank must
be used to avoid damage to the Solar
Thermal System.
If copper pipe is being used, all joints
MUST BE brazed, no soldering allowed.
WARNING
WARNING
WARNING
WARNING
WARNING
Dismantling and Disposal
• The units are dismantled in the reverse sequence of
installation.
• The roofing shall be properly sealed after the
mounting brackets have been removed.
• Materials shall be disposed of in an environmentally
conscious manner.
Only authorized solar companies
familiar with our products may handle
them.
There is a risk of injury when handling
collectors and mounting accessories as
these have sharp edges.
The collector becomes very hot in the
sunlight. There is a risk of burn.
Comply with all safety regulations and
applicable OSHA requirements.
Check the load bearing capacity and
stability of the substructure onto which
the collector is to be installed and
will need to be accessed during the
installation process.
6
Pump
Staon
Balancing Valve
(Needed For Mulple
Arrays)
Balancing Valve (Needed For
Mulple Legs)
SCH Collectors Installation & Operation Manual
2 Location
Array options
For series and parallel connection of multiple collectors, it is advisable to calculate the pressure drop over the entire system with
the aid of the enclosed documents and to install an appropriate pump if necessary. The maximum collector area per collector
array connected in series is 260 ft2. Be aware of pressure drop, reference the array options (FIG.’s 2-1 and 2-2).
Figure 2-1 Array Piping
SERIES STACKED
SINGLE COLLECTOR
Figure 2-2 Multiple Array Piping
PARALLEL SIDE BY SIDE
PARALLEL WITH BALANCING VALVES
(ON ROOF ONLY)
SERIES SIDE BY SIDE
7
2 Location
Installation positions
SCH Collectors Installation & Operation Manual
Figure 2-3 SCH Non-South Installations
min. 10° - max. 30°
Figure 2-5 SCH Freestanding Installations
Figure 2-4 SCH Inclined Installations
20°/40°/60°
min. 15° - max. 70°
Figure 2-6 SCH Parallel Installations
NOTICE
NOTICE
min. 15° - max. 70°
For best performance, it is recommended
that the collectors face true south.
It is not recommended for the collector
field to deviate any further than 45°
from true south.
NOTICE
NOTICE
min. 15° - max. 70°
Collector incline should be at least 15° and
no more than 70° for best performance.
Avoid installation in shaded areas. Shaded
areas will reduce the performance of the
solar collectors.
8
2 Location (continued)
Handling and storing
WARNING
CAUTION
NOTICE
• Installation of LOCHINVAR/TiSun
SCH collectors is only allowed for
professional staff.
• Local instructions, laws and standards
are to be kept.
• Collectors are to be located so
falling of snow and ice does not
endanger any person or property.
• Use personal protection equipment
(helmet, belt, security shoes) when on
the roof.
• Secure tools and materials against
falls.
• It is forbidden to stand under
hanging load.
• Danger area has to be closed.
• Put ladders up properly and check
stability.
• Check the under roof construction on
the building before installation.
SCH Collectors Installation & Operation Manual
WARNING
What to avoid
• Only loosen the crane connection
when the collectors are completely
fixed to the substructure.
• Pay special attention to roof-work
near an electric grid. If need be, the
constructor must take security
precautions such as isolation,
covering, etc.
• Inspect the roof surface in the area of
the installation for cracks, water
leakage, and roofing material quality
and uniformity. This is especially
important if the roof is more than 10
years old.
• Inspect the roof for sags and other
abnormalities. A sag or deep
depression in the roof may indicate a
structural weakness in the support
system that may require correction.
• Check that all rafters, trusses and
other materials are in good condition.
WARNING
• Avoid rotating movements of the
load through wind. Secure load
CAUTION
before lifting.
• Only move collectors on the given
fixing loops.
NOTICE
Figure 2-7 Crane Transportation Connection Points and Positioning
< 30°
6.5 ft.
• Collectors are to be located such that
eventual sliding of snow and ice does
not endanger any person.
• See FIG. 2-7 for crane transportation
connection points and positioning.
< 30°
6.5 ft.
< 30°
6.5 ft.
< 30°
8.5 ft.
9
SCH Collectors Installation & Operation Manual
SCH Collectors Installation & Operation Manual
3 Roof Attachment Installation
Roof attachment types
Table 3A Roof Fastenings - Parts
SOLAR ROOF MOUNTS
Part #
SRM20001
SRM20003
SRM20004
SRM20005
SRM20006 CLAMP, JOINTXX
Lochinvar
Name
BOLT,
DOUBLE
HANGER
ANCHOR,
RAFTER, STD
ROOF TILE
ANCHOR,
RAFTER, TALL
ROOF TILE
HOOK, FLAT
TILE
Installation Type
Parallel InclinedFree-
standing
XX X13
XX
XX
X
--
-
-
-
See
Page
15
15
16
18
Description
Stainless steel attachment for universal heavy duty
installations, on parallel and inclined roofs and
freestanding installations on sufficiently anchored
bases.
Stainless steel attachment for parallel and inclined
installations on various types of tiled roofs. Standard
installations for tile heights of up to 1.5". Package is
complete with fasteners and spacers.
Stainless steel attachment for parallel and inclined
installations on various types of tiled roofs. Standard
installations for tile heights of up to 2". Package is
complete with fasteners and spacers.
Stainless steel attachment for parallel installations on
plain tile, slate, and flat cement tiled roofs with pitches
in excess of 30 degrees.
Stainless steel attachment for parallel and inclined
installations on jointed tin, galvanized, or copper
roofs. Additional securing cables (Lochinvar Part #
SRM20012) are required for inclined installations.
SRM20007
SRM20008
SRM20009
SRM20010
SRM20012
SRM20013
SRM20014
SRM20015
10
PLATE,
FLANGE,
SHINGLE, STD.
PLATE,
FLANGE,
SHINGLE,
RAISED
BOLT,
ANCHOR,
CONCRETE W/
ADJ
BOLT,
ANCHOR,
CONCRETE
KIT, UNIV
CABLE
SECURING
ATTACHMENT,
ROOF CORR
METAL
ATTACHMENT,
WAVE ROOF SMXX
ATTACHMENT,
WAVE ROOF LGXX
XX X20
-
-
-
-
XX
XX22
XX26
XX26
X
Galvanized steel attachment for parallel, inclined and
freestanding installations on asphalt or elastomer
roofs.
Galvanized steel attachment for inclined and
freestanding installations on asphalt or elastomer
roofs. Also recommended for flat roofs.
Galvanized steel attachment for inclined or freestanding
installations with 2.75" height adjustment. For use in
applications with no more than a 5 degree inclination.
Galvanized steel attachment for inclined or
freestanding installations with no height adjustment.
For use in applications with no more than a 5 degree
inclination.
Stainless steel cable set for securing collectors on
inclined jointed roofs. Kit includes cable, turnbuckle,
-
-
-
-
19
hardware for attachment to frame, and joint clamp.
For inclined installations only.
Stainless steel attachment for parallel and inclined
23
installations on profiled and corrugated roofs.
Galvanized steel attachment for installations on
25
concrete corrugated roofs with 5 corrugations per
meter. For parallel and inclined installations.
Galvanized steel attachment for installations on
25
concrete corrugated roofs with 8 corrugations per
meter. For parallel and inclined installations.
10
SCH Collectors Installation & Operation Manual
SCH Collectors Installation & Operation Manual
3 Roof Attachment Installation (continued)
Roof attachment quantities for SCH collectors snow loading
Table 3B Parallel Installations
SRM: 20001, 20003, 20004, 20006, 20007,
20013, 20014, 20015
area load up to
32 lb/sq-ft
SCH065610610
SCH090812812
SCH110814814
Parallel installation
SCH13010181018
Table 3C Inclined (20°, 40°, and 60°) Installations
SRM: 20001, 20003, 20004, 20007, 20008,
20009, 20010, 20013, 20014, 20015
area load up to 32 lb/
sq-ft
area load up to
64 lb/sq-ft
area load up to 64 lb/
sq-ft
SRM: 20005
area load up to
16 lb/sq-ft
SRM: 20006+ 20012
area load up to 64 lb/sq-ft
area load up to
32 lb/sq-ft
SCH065610122
installation
SCH090812143
Inclined (20, 40°, 60°)
SCH110814183
SCH1301018224
11
SCH Collectors Installation & Operation Manual
SCH Collectors Installation & Operation Manual
3 Roof Attachment Installation
Figure 3-1A Spacing Distance - Parallel, Inclined and Freestanding
a = 2 - 10 in.
Figure 3-1B Spacing Distance - Non-South
a
=
a
=
67” - 76”
=
X
=
a
a
x
a = 2 - 10 in.
Spacing Distance
Equally space the center roof attachments starting in the
middle, the two (2) end attachments will be spaced according
to the inner measurement (start in the middle and work
outwards). The remaining roof mounts should be equally
spaced in between the two (2) end roof attachments.
Note: For multiple collector installations reference the
Collector Mounting Section of this manual for spacing
between collectors.
12
x
67” - 76”
Each collector will have its own independent substructure set.
Ensure there is ample room on the chosen roof area for the
number of collectors chosen.
SCH Collectors Installation & Operation Manual
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.
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.
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).
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.
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 3-3 Pre-Drill 9mm Holes Into Substructure
PRE-DRILL TWO (2) 9MM HOLES
PERPENDICULAR TO THE ROOF
(APPROX. 4 IN. DEEP)
INSTALL
HANGER
BOLT(S)
HANGER BOLT (M12) (2X)
WASHER (M12) (2X)
HANGER BOLT SEAL (2X)
HEX BOLT (M8) (1X)
WASHER (M8) (1X)
DOUBLE HANGER BOLT PLATE (1X)
HEX NUT W/FLANGE (M12) (6X)
SQUARE DISK (1X)
HEX NUT (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
SCH Collectors Installation & Operation Manual
SCH Collectors Installation & Operation Manual
3 Roof Attachment Installation
Figure 3-4A Install Double Hanger Bolt Components
HEX NUT W/FLANGE
HANGER BOLT PLATE
HEX NUT W/FLANGE
WASHER (M12)
HANGER BOLT SEAL
HANGER BOLT
min.
4”
Figure 3-4B Compress Washer and Hanger Bolt Seal
DOUBLE HANGER BOLT PLATE
HEX NUT
FLANGE UP
Figure 3-5 Install Hex Bolt(s)
HEX BOLT
SQUARE DISK
DOUBLE HANGER
BOLT PLATE
NUT
WASHER
SEAL
13. Slide the square disk onto the hex bolt (see FIG. 3-5).
14. Install the hex bolt with square disk attached into the
opening of the double hanger bolt plate as shown in
FIG. 3-5.
Note: Do not tighten hex bolts until ready to install on the
collector substructure.
15. Thread the hex nut (M8) and washer (M8) onto the
bottom of the hex bolt installed in Step 14 (FIG. 3-5).
16. Repeat Steps 4 - 15 until installation is complete.