SunMaxx Installation Manual - StorMaxx Solar Hot Water Storage Tanks

Installation Guide
StorMaxx CTEC Series Tanks
www.SunMaxxSolar.com
Model Number
Serial Number
StorMaxx-CTEC-132-2HX-V4

SunMaxx Solar | 5042-5160 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.877.270.7875 fax | www.sunmaxxsolar.com
Instructions To The Installer
Requirements for tank installation room
Requirements for tank installation
31
1.1
1.2
Description
Insulation and water casing
Water tank
Electric heating element
Thermostat
42
2.1
2.2
2.3
2.4
Connecting of safety relief valve to water tank 73
Technical Specifications 84
Shipping & Packaging 125
Warranty Information 136
Table of Contents

1.1 Requirements for tank installation room
1. Instructions to the Installer
Dear Customers,
We strongly hope that the appliance you have bought from us will contribute to creating comfort
at you homes and decreasing the energy expenditure.
This manual contains important information for the safe and correct installation, start-up and
trouble-free operation and maintenance of the water heater.
Hygienic Combi Tanks can be used only in the manner described in this manual – to produce and
accumulate sanitary hot water and hot water for space-heating system.
The application and any other was the area of operation is not recommended by the manufac-
turer and is not responsible for the occurrence of defects or failures.
Note: The preperation, installation and commissioning must be performed by an authorized
professional installer / service.
During installation and operation, the country specific requirements and regulations must be observed:
• local construction regulations on installation of water tank; weight of the boiler to comply with the stability of the floor of the room where it
will be installed.
• regulations and norms concerning the fitting of theinstallation with safety devices.
• safety during installation - personal protective equipment
Use only original parts
When choosing a room for tank installation observe the following requirements:
• to have a drainage channel. Some maintenance procedures require draining of all water from the tank.
• Thermal insulation of the room. This provides efficiency of the appliance and prevents the water from freezing.
1.2 Requirements for tank installation
• The length of connecting pipes between the water tank and consumer must be as short as possible.
• Before connecting the water tank to the installation, check all screw connections (plug and etc.). In very rare cases - during transportation,
loading and unloading operations - the screw connections may be loosen.
• Before commissioning, check the installation for leaks
• Do not exceed the working pressure of 3 bar for buffer tank and 6 bar for hygienic stainless steel coil.
• If there is a risk of freezing of water in the tank - drain the tank completely or let the water tank works continuously.

2. Description
Hygienic Combi tanks are used To produce and accumulate sanitary hot water and hot water for space heating system.
Coil-in-Tank construction- Flexible stainless-steel coil for sanitary hot water + Buffer tank powering space heating system. Sanitary water heats up
instantaneously as it flows through the large surface stainless coil. Thus water is delivered hot while still fresh and clean of depositions.
2 Heat Exchanger Models: these models have a heat exchanger for your potable water and a second heat exchanger for your solar energy system
connection.
3 Heat Exchanger Models: these models have a heat exchanger for your potable water, a second heat exchanger for your solar energy system con-
nection and a third heat exchanger for connecting your boiler as a backup heating source.
2.1 Removable Insulation & Outer Casing
The quality of the insulation of a water heater is a key factor for its heat conservation capability and energy efficiency.
All CTEC tanks have a removable insulation with a thickness of 4 inches (DIN 4753, part 8) and an outer casing of PVC with RAL 9006 color.
2.2 The Tank
Floor standing. Water tank is made of low-carbon steel S235JR.
The domestic hot water heat exchanger is made of sanitary grade stainless steel -316L and heats up instantaneously. All threads are internal (see
technical parameters).
2.3 Electric Heating Element
Outlet connection of electric heating element 1 ½”:
Available Models:
- 3000W/230V
- 4500W/230V
- 6000W/230V
- 7500W/400V.
Tank Capacity (G)
Connection
(in)
Length
(in)
Current
(W)
Voltage
(V)
132 1-1/2 16.2 6000 230/400
213 - 264 1-1/2 23.2 7500 230/400
Wiring Diagrams For Electric Heating Elements

2.4 Thermostat
Included at standard water tank package.
The thermostat may be adjusted by the user within the range 86°F - 176°F, and the thermal protection would go off in case the water reaches 203°F.
This is an adjustable double THERMOSTAT which is designed to regulate the water temperature and ensures safety tolerance; it can be manually
adjusted (TLSC model) or automatically adjusted (TLSC/A model).
Conformity To Standards
This product conforms to:
- EN 60730-1 and subsequent editions;
- EN 60730-2-9
Conformity to Regulations
This product complies with:
- Low Voltage Directive 73/23 EEC
- Electromagnetic Compatibility Directive 89/336/EC
Technical Specifications
Temperature range
regulation: - 0°C ÷ 90°C
limit: - 90°C ÷ 110°C

Tolerance
regulation: ± 5k
limit: -15 k; -6 k (depends on the type)
Temperature differential
regulation 6 ± 2 k; 4 ± 1 k (depends on the type)
limit 25 ± 8 k; 15 ± 8 k (depends on the type)
Automatic adjustment (TLSC/A) and manual adjustment (TLSC)
Degree of protection = IP 40
Insulation class = I
Temperature change rate = <1К/min
Maximal temperature point: 176°F
Maximal temperature for electric lamp: 257°F
Accumulation temperature: 59°F to 151°F
Maximum pressure of the cartridge: 145 psi
Constant time: < 1”
Technical Specifications
Electric connection:
C-1 ADJ.: 10(2,5)A/250V°;
C-2 ADJ.: 6(2,5)A/250V~;
C-1LIM.: 0,5A/250V~;
C2LIM.: 10(2,5)A/250V~; Terminal – circuit breaker or switch-on
contacts.
Switch-on action – 2B
Place of installation – normal
Type of wire – M20 x 1.5

Installation and Connection Safety Instructions
Before connecting the thermostat, make sure that THE UNIT TO BE THERMALLY CONTROLLED (water
heater, pump, etc.) IS NOT CONNECTED to the power supply network, and is in compliance with the
instructions in Figure 2.
A) See figure 3 and figure 4
B) Unscrew the three bolts and remove the front part of the thermostat. Unravel the power supply
wires and connect them to the terminals of the thermostat (figure 5) following the instructions.
fig 3 fig 4
fig 2
fig 5
To close the front part, the cartridge opening must align with the coupling of the adjustment knob
(see figure 6)
fig 6
Connection Limitation (see figure 7)
Terminal 2: opens the circuit when the temperature rises
Terminal C: common contact
Thermostat
Terminal 1: opens the circuit when the temperature rises
Terminal 2: closes the circuit when the temperature rises
Terminal C: common contact
fig 7
Temperature Adjustment (see figure 8)
A) Reset button
B) Knob for temperature adjustment
fig 8

3. Connection Of Safety Valve To Water Tank
3.1 Connecting To The Buffer Tank
1 Heating System
2 Tee
3 Safety (pressure relieft) Valuve
4 Heat Carrier Inlet
3.2 Connecting The Stainless Steel DHW Heat Exchanger
1 Cold Water Inlet Supply
2 Check (return) Valve
3 Tee
4 Safety (pressure relief) Valve
5 Cold Water Inlet (DHW heat exchanger)
Stop (Shut-off) valves should never be installed between a safety (relief) valve and the tank.
It is recommended once a year to check the operation of the safety valve.

4. Technical Specifications
Model Volume (G) Weight (lbs)
Diameter
(in)
Height (in)
Wall
Material
# of HX
Insulation
Thickness
(in)
Element /
Backup
StorMaxx-CTEC-132-2HX-V4 132 336 34 64
Carbon
Steel
2 4 NA
Carbon
Steel
2 4 NA
Carbon
Steel
3 4 Boiler
Carbon
Steel
2 4 NA
Carbon
Steel
3 4 Boiler
Model
StorMaxx-CTEC-
213-3HX-V4
StorMaxx-CTEC-
264-3HX-V4
Buffer Capacity 202.6 G 255.5 G
Heat Exchanger Capacity (DHW) 8.7 G 8.7 G
Heat Exchanger Surface Area (DHW) 80.7 FT2
80.7 FT2
Heat Exchanger Capacity (Bottom) 4.7 G 4.9 G
Heat Exchanger Surface Area (Bottom) 31.2 FT2
32.3 FT2
Heat Exchanger Capacity (Top) 2.9 G 3.3 G
Heat Exchanger Surface Area (Top) 19.4 FT2
21.5 FT2
Heat Exchanger Operating Pressure (DHW) 232 PSI 232 PSI
Heat Exchanger Max Temperature (DHW) 230 O
F 230 O
F
Heat Exchanger Operating Pressure (Bottom / Top) 44 PSI 44 PSI
Heat Exchanger Max Temperature (Bottom / Top) 203 O
F 203 O
F
Buffer Tank Operating Pressure 87 PSI 87 PSI
Buffer Tank Max Temperature 203 O
F 203 O
F
Continuous Output @ 104 O
F w/ Buffer At 149 O
F 462 G 607 G
Max Single Output @ 100 O
F 153 G 208 G
Specifications: 3HX Models
1
2
3
4
8
7
5
1. Aestheitc PVC jacket with
color RAL 9006
2. Highly efficient thermal
insulation
3. Low-carbon steel water
tank
4. Sanitary grade stainless
steel DHW heat
exchanger tube
5. Water stratification unit
6. Safety valve, 8 bar
7. Lower coil
8. upper coil

Specifications: 2HX Models
Model StorMaxx-CTEC-132-2HX-V4 StorMaxx-CTEC-213-2HX-V4 StorMaxx-CTEC-264-2HX-V4
Buffer Capacity 126.8 G 202.6 G 255.5 G
Heat Exchanger Capacity (DHW) 5.3 G 8.7 G 8.7 G
Heat Exchanger Surface Area (DHW) 48.4 FT2
80.7 FT2
80.7 FT2
Heat Exchanger Capacity (Bottom) 2.8 G 4.7 G 4.9 G
Heat Exchanger Surface Area (Bottom) 18.3 FT2
31.2 FT2
32.3 FT2
Heat Exchanger Capacity (Top) - - -
Heat Exchanger Surface Area (Top) - - -
Heat Exchanger Operating Pressure (DHW) 232 PSI 232 PSI 232 PSI
Heat Exchanger Max Temperature (DHW) 230 O
F 230 O
F 230 O
F
Heat Exchanger Operating Pressure (Bottom / Top) 44 PSI 44 PSI 44 PSI
Heat Exchanger Max Temperature (Bottom / Top) 203 O
F 203 O
F 203 O
F
Buffer Tank Operating Pressure 87 PSI 87 PSI 87 PSI
Buffer Tank Max Temperature 203 O
F 203 O
F 203 O
F
Continuous Output @ 104 O
F 357 G 462 G 608 G
Max Single Output @ 100 O
F 100 G 153 G 209 G
1
2
3
4
7
5
1. Aestheitc PVC jacket with color
RAL 9006
2. Highly efficient thermal insulation
3. Low-carbon steel water tank
4. Sanitary grade stainless steel DHW
heat exchanger tube
5. Water stratification unit
7. Lower coil

Model StorMaxx-CTEC-213-3HX-V4 StorMaxx-CTEC-264-3HX-V4
Cold Water Inlet (domestic hot water exchanger) A 1” / 13.0” 1” / 14.2”
Sensor Sleeve B 1/2” / 22.4” 1/2” / 22.8”
Electric Heating Element (optional) C 1-1/2” / 36.2” 1-1/2” / 44.5”
Sensor Sleeve D 1/2” / 50.8” 1/2” / 59.1”
Hot Water Outlet (domestic hot water exchanger) E 1” / 58.5” 1” / 62.2”
Air Vent Sleeve F 1-1/2” / 73.2” 1-1/2” / 80.3”
Boiler Heat Carrier Inlet G 1-1/2” / 61.9” 1-1/2” / 68.6”
Upper Coil Inlet (S2 / sleeve) H 1-1/2” / 54.7” 1-1/2” / 59.9”
Sensor Sleeve I 1/2” / 50.8” 1/2” / 57.1”
Upper Coil Outlet (S2 / sleeve) J 1-1/2” / 42.2” 1-1/2” / 46.1”
Boiler Heat Carrier K 1-1/2” / 38.6” 1-1/2” / 41.7”
Lower Coil Inlet (S1 / sleeve) L 1” / 32.3” 1” / 34.6”
Boiler Heat Carrier M 1-1/2” / 26.4” 1-1/2” / 28.7”
Sensor Sleeve N 1/2” / 18.3” 1/2” / 19.5”
Lower Coil Outlet (S1 / sleeve) O 1” / 12.2” 1” / 12.2”
Boiler Heat Carrier Outlet P 1-1/2” / 6.7” 1-1/2” / 6.7”
Connection Sizes & Heights: 3HX Models

Model
StorMaxx-CTEC-132-2HX-
V4
V4
V4
Cold Water Inlet (domestic hot water exchanger) A 1” / 10.8” 1” / 13.0” 1” / 14.2”
Sensor Sleeve B 1/2” / 16.1” 1/2” / 22.4” 1/2” / 22.8”
Electric Heating Element (optional) C 1-1/2” / 31.1” 1-1/2” / 36.2” 1-1/2” / 44.5”
Sensor Sleeve D 1/2” / 44.1” 1/2” / 50.8” 1/2” / 59.1”
Hot Water Outlet (domestic hot water exchanger) E 1” / 51.5” 1” / 58.5” 1” / 62.2”
Air Vent Sleeve F 1-1/2” / 63.4” 1-1/2” / 73.2” 1-1/2” / 80.3”
Boiler Heat Carrier Inlet G 1-1/2” / 53.9” 1-1/2” / 61.9” 1-1/2” / 68.6”
Upper Coil Inlet (S2 / sleeve) H 1-1/2” / 50.0” 1-1/2” / 54.7” 1-1/2” / 59.9”
Sensor Sleeve I 1/2” / 44.1” 1/2” / 50.8” 1/2” / 57.1”
Upper Coil Outlet (S2 / sleeve) J 1-1/2” / 39.0” 1-1/2” / 42.2” 1-1/2” / 46.1”
Boiler Heat Carrier K 1-1/2” / 34.6” 1-1/2” / 38.6” 1-1/2” / 41.7”
Lower Coil Inlet (S1 / sleeve) L 1” / 30.3” 1” / 32.3” 1” / 34.6”
Boiler Heat Carrier M 1-1/2” / 24.4” 1-1/2” / 26.4” 1-1/2” / 28.7”
Sensor Sleeve N 1/2” / 18.1” 1/2” / 18.3” 1/2” / 19.5”
Lower Coil Outlet (S1 / sleeve) O 1” / 9.8” 1” / 12.2” 1” / 12.2”
Boiler Heat Carrier Outlet P 1-1/2” / 5.9” 1-1/2” / 6.7” 1-1/2” / 6.7”
Connection Sizes & Heights: 2HX Models

5. Shipping & Packaging
We recommend delivering your storage tank directly to the installation site on the pallet and in the original packaging.
During transport and installation, depending on the weight, appropriate safety equipment must be used in accordance with Directive 2006/42/EC.
When transporting items weighing more than 66 lbs, the use of pallet jack, fork truck or other hoisting devices is a must.
Your StorMaxx CTEC tank can be installed with or without the outer insulation. They are secured on a pallet packed with foil. Insulation, decorative
cover and rosettes can be delivered separately.
Advantages
• Easy transportation (takes less space at transportation).
• Easy conveyance to the place of installation.
• Easy and quick packing of water heaters with soft insulation. All necessary openings in the casing are made beforehand, and the installer has
only to find them and take them out. The casing is fastened by a zipper at the assembly platform.
Pallet Dimensions
Tank Capacity (G)
132 213 264
Without Insulation (in) 25.6 x 25.6 31.1 x 31.1 31.1 x 31.1
With Insulation (in) 35.4 x 35.4 41.3 x 41.3 41.3 x 41.3

6. Warranty
1) Manufacturing defects and materials guarantee
Manufacturer expressly guarantees that the products it manufactures shall be free from defects in materials and workmanship which can prevent
from normal operation under proper and normal use, installation and maintenance for the intended functions of the products, for a period set out
in the warranty certificate of the respective water heater model you have bought. The warranty period begins from the date indicated in the pur-
chase invoice. If a product or any component there of is determined to be defective in manufacture or materials, Manufacturer will repair or replace
the defective component or product
2) Exclusions and Limitations of Warranty Coverage
a) The customer can claim warranty during warranty period of respective product immediately after any defects have been determined, except
for in case of noticeable defects at the moment of purchase, in which case the customer must make the claim at the shop immediately after
noticing the defect as it is provided for in the general conditions of sale.
1) Accidents, installation on movable structures, negligence, improper care or nonconformity.
2) Failure to observe the installation, use and maintenance instructions set forth in the installation manual of respective product.
3) Improper installation and use as well as changes, especially if they are not made by authorized after-sale service personnel of Manufacturer
4) Testing and operation pressures greater that values established by Manufacturer and set forth in product manuals, or use of water with cha
acteristic values exceeding: Dissolvable salts – 500 mg/l; Calcium carbonate – 200 mg/l; Free carbon dioxide – 50 mg/l; ph content –
minimum 5 and maximum 12. 5) Freeze, flood, natural disasters or third party actions as well as any interventions into normal functioning
conditions of water heaters and the control of Manufacturer
The customer as well should monitor the anticorrosion system (magnesium anodе). He should periodically check the magnesium anode and
replace it depending on the geographic location at intervals depending on the type of water (soft of hard) of the region where the water heater is
being used.
b) The warranty certificate is considered void for water heaters whose serial identification number has been modified, removed or blurred, or
cannot be expressly attested.
c) Damages in the appearance of products shall not be considered as defects except for those ones which cause losses during operation or
change technical characteristics of water heaters set forth in brochures.
d) Manufacturer preserves the right, in case of replacement, to deliver another model of water heater in order to fulfill approved warranty claims
when the original model is not being manufactured.
3) Claiming warranty
Every customer who has purchased a water heater from Manufacturer and who has good reasons to lay a warranty claim, shall proceed as follows:
a) Immediately notify in writing: The installer, or the company that has sold the water heater to him, or The distributor firm, or The commercial
representative of Manufacturer in the region.
For this purpose the claimant shall fill out a claim form; the latter shall be accompanied by the document proving the purchase of the water
heater (invoice) with the date of purchase in it.
b) After receiving the claim form, Manufacturer considers it and makes decision whether the claim has grounds, and whether the defect is within
the scope of the warranty set forth in this certificate for limited warranty; after which informs the customer as to its decision and the steps he
shall do.
c) The return of a product cannot be done without written authorization issued by the Quality Department. The return procedure shall be
according to RMA (Return Material Authorization).
d) If on customer’s request, and when there is reason for urgency, the customer demands immediate replacement of the product he has claimed
warranty for, before making the decision as to the claim, said request shall be accompanied by a Purchase requisition from the Commercial
Department. After decision for satisfaction of the claim has been made, the Purchase requisition mentioned above will be annulled by issuing a
receipt for returned goods; with this receipt the customer can purchase another product with the same price in case the claim has proved
grounded.
e) Manufacturer reserves the right to make in situ reports from the claims they have received for the purpose of checking every aspect that
might be useful for better consideration of warranty claims; for this reason the customer shall not make any changes in installation conditions
which are reasons for the claim without prior written consent of the Technical Department.

4. Limitation of liability
а) Manufacturer is not liable before the customer, neither directly nor indirectly, for any non-fulfillment or delay at applying the warranty
obligations which might originate from external pressure of other circumstances outside Manufacturer
b) The liability of Manufacturer under this Warranty Certificate is limited to the abovementioned obligations and up to the sum in accordance
with the purchase receipt of the product to be claimed; excluded is any liability for indirect damages such as loss of data at information
applications, loss of production, thermal variations at the service, etc. which do not violate the applicable regulations of any country
concerning product liability.
c) Above mentioned warranty limitations will be applied in any cases, and when they do not violate the regulations in any country concerning
product liability. If this circumstance annuls some of preceding clauses, annulment will refer only to this clause, while the others will remain
valid. In conclusion, excluded is application of any Regulation pointed out in this Warranty which violates the Law 23/July 10, 2003 and
Directive 1999/44/EU concerning water heaters and their use on the territory of the EU.
d) Any other warranty right that is not mentioned in this Warranty Certificate is excluded

5042-5160 NY 206 Bainbridge NY 13733 | 1.877.786.6299 1.888.270.7875 fax
www.SunMaxxSolar.com

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