Sunbank SB-40G Manual de usuario

Installation Manual

SB-40G / TZ58/1800-15C

SB-80G / TZ58/1800-30C

Sunbank Quick Start Guide

Important points before you begin:

1. The evacuated tubes must be installed last.

The tubes quickly generate heat and need water in the tank to act as a load for the heat generated.

Keep the tubes in the box and covered until final step of installation. Do not touch heat pipe without

protective gloves as they get very hot.

2. Make sure that the heat pipes are fully inserted into the tank (about 6 inches).

First insert the condenser bulb of the heat pipe into the manifold until you feel the condenser bulb hit

against the end. Once fully inserted slide tube up to meet tank. Full instructions can be found in

section 11.

3. Use proper freeze protection

For installations in freeze prone areas, proper freeze protection is required. Descriptions of freeze

protection can be found on our website: https://thesunbank.com/freeze-protection. If possible, design

your installation in such a way that neither brass nor copper is used in any unconditioned (not heated)

space.

According to the SRCC, the freeze tolerance for this system is 23° F or -5° C. Freeze tolerance limits

are based upon an assumed set of environmental conditions. Extended periods of cold weather,

including ambient air temperatures above the specified limit, might cause freezing in exposed parts of

the system. It is the owner’s responsibility to protect the system in accordance with the supplier’s

instructions if the air temperature is anticipated to approach the specified freeze tolerance limit.

4. Put pipe dope on female and male threading then wrap with Teflon tape.

The threads on the openings to the Sunbank are such that they require at least 4 wraps of high quality

Teflon tape. To prevent leaks you should put pipe dope on the female threads and on the male

threads, then wrap Teflon tape over the male threads. This is a plumber’s trick and the best way to

avoid leaks.

5. Make sure to insert the temperature sensor the full 6 inches into the thermowell.

This is only applicable to installations that are installing the optional controller and heating element.

When inserting the temperature sensor into the black plastic cord grip make sure it goes all the way

up (about 6 inches) into the tank. Otherwise you will get a bad reading which can cause your system

to overheat if using the optional controller and heating element.

Sunbank Quick Start Guide

Table of Contents

1. Included Parts ……………………………………………………………………………………… 4

2. Not Included Parts ……………………………………………………………………………………… 5

3. Project Overview ……………………………………………………………………………………… 6

4. Plumbing Diagram ……………………………………………………………………………………… 7

5. Tank Diagram ……………………………………………………………………………………… 9

6. Bracket Diagram ……………………………………………………………………………………… 10

7. Reinforce Roof ……………………………………………………………………………………… 11

8. Roof Attachments ……………………………………………………………………………………… 12

9. Insulation ……………………………………………………………………………………… 12

10. Filling the Tank ……………………………………………………………………………………… 13

11. Tube Installation ……………………………………………………………………………………… 13

12. Temp Sensor/Aux Heater ……………………………………………………………………………………… 14

13. Project Completion ……………………………………………………………………………………… 14

14. Plumbing Labels ……………………………………………………………………………………… 15

15. Operation & Maintenance ……………………………………………………………………………………… 16

16. Warranty ……………………………………………………………………………………… 17

17. Specification Sheet ……………………………………………………………………………………… 18

Notice:

The solar energy system described by this manual, when properly installed and maintained, meets the

minimum standards established by the SRCC. This certification does not imply endorsement or

warranty of this product by SRCC.

All installations should comply with building, plumbing, mechanical and fire code adopted by the

authority having jurisdiction or, in the absence of such codes, with the International Building Code,

International Plumbing Code, International Mechanical Code, and International Fire Code.

Sunbank accepts no responsibility for the misuse or improper installation of this product. This manual

is illustrative not comprehensive. It does not cover personal safety when working on a roof, for

example, or go into depth regarding structural, plumbing, or electrical work. The installer should have

the proper training and knowledge in these areas. If you do not have the proper plumbing, roofing,

and electrical experience then you should not attempt to install the Sunbank.

Sunbank Quick Start Guide

1. Included Parts

The basic Sunbank system includes:

1 –40 or 80 Gallon Tank

1 - Bracket (assembly required)

15 (40G) or 30 (80G) - Evacuated tube solar collectors (including aluminum fin,

stainless heat pipe, and cap assembly)

15 or 30 - Plastic tailstocks

15 or 30 - Dust rings

1 - Magnesium Anode

1 –½” Temperature and Pressure (T/P) Valve

1 –½” Hy-Vent Air Eliminator

1 –Auxiliary Electric Heater

Stand-alone accessories:

1 –Electronic temperature controller with sensor wire and thermowell

T/P Valve

Hy-Vent

Plastic Tailstock

Dust Rings (Black or White)

Controller

Thermowell

Sunbank Quick Start Guide

2. Not Included Parts

The specific hardware necessary is installation and climate specific. This list is illustrative, not

comprehensive.

The Sunbank can be installed as a pre-heater with a bypass or as a standalone system. The

following parts list is for the basic pre-heater setup:

1 –roll of PEX or copper pipe (length and diameter dependent upon installation)

1 –roll of high quality Teflon plumbing tape

1 –bottle of thread sealant

1- 4.4 gallon potable water expansion tank

2 –¾” FNPT adapters to interface with tank inlet and outlet

2 –¾” FNPT caps (if not using side ports –most installations)

1 –½” brass plug (if not using thermowell)

2 –¾” MNPT drain valves

6 –T’s (diameter depends on PEX size chosen)

6 –Ball valves (see plumbing configuration diagram in Part 4 for explanation)

1 –Flashing to interface with the roof/building penetration point

1 –lead free mixing valve (also known as a tempering valve)

4 (40G) or 6 (80G) - roof attachments (type depends on roof surface –contact us for

suggestions)

Installation specific plumbing fittings to interface with existing plumbing

Pipe insulation and aluminum jacketing for outdoor pipe

Optional:

1 –3.25” x 10” x 6” register boot to interface with the tank

1 –freeze protection valve More info: https://thesunbank.com/freeze-protection/

Stand-alone system, you will need an additional:

1 –Roll of outdoor 12/2 wiring (for wiring auxiliary electric heater)

Sunbank Quick Start Guide

3. Project Overview

1. Before starting an installation, it is necessary to know where you plan to mount the

Sunbank and where you plan to interface with the existing plumbing system. Once this is

clearly defined, you can purchase the necessary plumbing supplies.

2. If a permit is required in your jurisdiction contact us for more resources. We will provide

you with documents that you will need for a permit and can connect you with a structural

engineer, if necessary.

3. Assemble the Sunbank bracket and find the rafters/purlins over which you plan to mount

it. Lag flashed attachments to roof and mount bracket so that you can find the correct

roof/building penetration.

4. The next step is to run the plumbing to where you will interface with the existing

plumbing. Make the plumbing connections according to the Sunbank plumbing schematic.

5. Connect plumbing and fill with water (see instructions for how to fill properly in order to

take air out of system) and check for leaks. Do not seal up insulation until you have

checked for leaks.

6. Install tubes (kept in the box until now to prevent overheating). Tighten nuts to secure

tank bolts to the bracket.

7. Enjoy solar heated water.

Sunbank Quick Start Guide

4. Plumbing Diagram

We are including two plumbing diagrams and a photo of an installed plumbing configuration to help

explain how to plumb the Sunbank system. You can also look at our Youtube channel for more details.

The Sunbank can be installed as a stand-alone or a pre-heat system. The following diagrams/photo

show the pre-heat configuration. The stand-alone is the same but without the existing domestic water

heater and water heater bypass/shutoff valves.

Note: Drain the T/P valve to the gutter to avoid hot water on roof material

Sunbank Quick Start Guide

5. Tank Diagram

Sunbank Quick Start Guide

6. Bracket Diagrams

1) Flush mount for pitched roof (80G is twice as wide)

2) Flat roof and ground mount (80G is twice as wide)

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