Thermann TH50ECR6N User guide

INSTALLER'S
MANUAL
Gas Continuous Flow Water Heaters
Models
TH50ECR6N
TH50ECR6L
TH32ECR6N
TH32ECR6L
TH28ENR6N
TH28ENR6L
Installation Details
Warranty
*SBB813X*

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
To be installed and serviced only by an authorised person.
This appliance is not suitable for use as a pool heater.
The "authorised installing person" is responsible for:
1. Correct commissioning of this appliance
2. Ensure unit performs to the specification stated on the data label
3. Demonstrate operation of unit to customer before leaving
4. Hand these instructions to customer
This appliance must be installed in accordance with the manufacturer's installation instructions all Local
Building, Water and Gas fitting regulations (AS/NZS3500.4, AS/NZS 5601, AS/NZS3000).
This appliance delivers water in excess of 50 Degrees C. Ensure that suitable devices such as Tempering
Valves are installed in lines servicing Sanitation areas per AS3500.4.
Failure to install this appliance in accordance with these installation instructions may void
warranty.
In the interest of continued product improvement, Reece Manufacturing reserves the right to alter these
specifications without notice.
2

CONTENTS
1. Included Accessories 5
2. Optional Accessories 5
3. Dimensions 6
4. Component Details Example 9
5. Quick Connect Multi System Installation 12
6. Before Installation 13
7. Specications 14
8. Choosing Installation Site 16
9. Installation Clearances 17
10. Installation 19
11. Gas Piping 21
12. Water Piping 22
13. Condensate Piping 24
14. Plumbing Applications 26
15. Electrical Wiring 27
16. Temperature Setting 28
17. Connecting Quick Connect Cord 32
18. Maintenance 33
19. Trial Operation 34
WATER QUALITY 36
3

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
Installation Manual
Potential dangers from accidents during installation and use are divided into the following
three categories. Closely observe these warnings, they are critical to your safety.
Prohibited Earth
Requests to Installers
• In order to use the water heater safely, read this installation manual carefully, and follow the
installation instructions.
• Failures and damage caused by erroneous work or work not as instructed in this manual are not
covered by the warranty.
• Check that the installation was done properly in accordance with this Installation Manual upon
completion.
• After completing installation, please either place this Installation Manual in a plastic pouch and
attach it to the side of the water heater, or hand it to the customer to retain for future reference.
WARNING:
CAUTION
• The water heater must be commissioned including checking gas supply pressures at maximum
demand.
• The operation of the water heater should be explained including normal operation & regular
maintenance.
CAUTION
Condensing Models Non Condensing Models
TH50ECR6N
TH50ECR6L
TH32ECR6N
TH32ECR6L
TH28ENR6N
TH28ENR6L
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.
WARNING
CAUTION
DANGER
4

The following accessories are included with the unit.
Check for any missing items before starting installation.
TH32ECR6 series, TH28ENR6 series
TH50ECR6 series
Q’ty
Q’ty
Shape
Shape
Part
Part
Anchoring Screw
Anchoring Screw
1
each
1
each
Part
Part
Shape
Shape
Q’ty
Q’ty
7
1 1
5
Owner's Guide,
Installation Manual
(this document)
Owner's Guide,
Installation Manual
(this document)
The accessories listed below are not included with the units,
but may be necessary for installation.
Q’ty
ShapePartPart Shape Q’ty
11
1
1
1
1
Included Accessories
Optional Accessories
Main Controller
(RC-9018C)
No. CF-KRC-9018C:
indoor (+15m cable)
No. CF-KRC-9018C-EX:
outdoor (+3m cable+box)
Remote Controller
Quick Connect Cord
(2m)
No. CF-0706891
Remote Controller Cord
(3m)
System Controller
(SC-401-6M)
for 1-6 units
compatible with
TH32ECR series
and TH50ECR series
No. CF-SC4016M
Pipe cover
(H50-450)
No.CFH50450
Flue Diverter
(C97)
No.CFC97
System Controller
(SCU-401-12M)
for 1-12 units
No. CF-SCU40112M
5

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
Dimensions
TH50ECR6 series
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
DRAIN OUTLET 20
HOT WATER OUTLET 65
COLD WATER INLET86
GAS INLET51
480
476
830 800
861
18 18
25
7450
466
320
29910
360
300
198
170
140
100
70
36 10 19 91
AIR INLET
302
197
184
108
181
125
85
242 246 269
277
67
35
WATER DRAIN VALVE
WATER DRAIN VALVE
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
GAS INLET
COLD WATER INLET
WIRING THROUGHWAYS
WIRING THROUGHWAYS
WIRING THROUGHWAYS
CONDENS
ATE DRAIN(R1/2)
CONDENSATE DRAIN
GAS INLET(R3/4)
WIRING THROUGHWAYS
HOT WATER OUTLET(R1)
(VIEW FROM TOP)
COLD WATER INLET(R1)
6×φ13
12×6×10 OBLONG HOLE
6×φ13
12×6×10 OBLONG HOLE
<Unit : mm>
300
198
170
140
100
70
36
6

TH32ECR6 series
HEIGHT
OF EACH FITTING
FROM BOTT
OM OF CASE
DRAIN OUTLET 20
HOT WATER OUTLET 44
COLD WATER INLET55
GAS INLET56
665 615
40
170 109
135 171
90 60
611
53 61
586
44
99267
448
464
450
42
28
1310 240
153
135
214
362
99
70
10
36
70
100
140
170
36
70
100
140
170
AIR INLET
FLUE COLLAR
AIR INLET
WATER DRAIN VALVE
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
WATER DRAIN VALVE
WATER DRAIN VALVE
DRAIN OUTLET
GAS INLET
COLD WATER INLET
WIRING THROUGHWAYS
DRAIN OUTLET(R1/2)
GAS INLET(R3/4)
WIRING THROUGHWAYS
HO
T WATER OUTLET(R3/4)
(VIEW FROM TOP)
COLD WATER INLET(R3/4)
4-φ13
4-φ13
6-6×10 OBLONG HOLE
6-6×10 OBLONG HOLE
<Unit : mm>
7

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
TH28ENR6 series
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
HOT WATER OUTLET 45
COLD WATER INLET55
GAS INLET56
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
WATER DRAIN VALVE
COLD WATER INLET
WIRING THROUGHWAYS
<Unit : mm>
336
350
334
252
10
10
28
240
262
120
85
50
60
84
120
4-Φ13
4-Φ13
65
10.8
241
(VIEW FROM TOP
）
36
FLUE COLLAR
AIR INLET
AIR INLET
HOT WATER OUTLET (R3/4)
2-6.5x13 OBLONG HOLE
3-6.5x16.5 OBLONG HOLE
WIRING THROUGHWAY
GAS INLET (R3/4)
COLD WATER INLET (R3/4)
61
88
600
97
171
41
42
1010 622
567
175
50
GAS INLET
8

Component Details Example
TH50ECR6 series model shown for illustration only
Ex. TH50ECR6
9

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
TH32ECR6 series model shown for illustration only
Ex. TH32ECR6
10

TH28ENR6 series model shown for illustration only
Ex. TH28ENR6
11

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
Quick Connect Multi System Installation
Make this distance as short
as possible.
*
The hot water temperature
will become unstable as the
pipe length increases.
Union
Quick Connect
cord
Union
Union
Hot Water
Cold Water
Size the piping to allow for the
maximum flow rates of the units.
To drain outlet
Leave enough clearance around the plumbing to
apply insulation. It will be necessary to add
bends to the piping to ensure that this clearance
is available.
To drain outlet
Gas Valve
Shutoff
Valve Shutoff Valve
Shutoff Valve
The backflow preventer is
put up before it diverges.
Distance at center:
485-950mm (TH50ECR6)
469-950mm (TH32ECR6)
355-950mm (TH28ENR6)
Distance on sides
5-470mm (TH50ECR6)
5-486mm (TH32ECR6)
5-600mm (TH28ENR6)
G
Quick Connect
Cord
Remote Controller Cord
Gas Supply Piping
Cold Water Supply
Hot Water
Remote Controller
Terminal Block
Cord
Connector
Cord
Connector
• The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord.
Typical Plumbing
* When connecting two units, use only a
single remote controller.
* The remote controller terminal location
may differ depending on the unit.
Note: Connect the remote
controller to only one of
the units.
System Diagram
The Quick Connect Cord is 2m long. Install the units to ensure the cord will be able to reach between
the units. (See Typical Plumbing diagram).
(If the distance between the two units is too great, not only will the cord not be able to reach, but the water
temperature may also become unstable because of the difference in pipe length between the two units).
• Insulate the hot water piping to prevent heat loss. insulation and apply heating materials to the cold water
supply piping to prevent heat loss and freezing of pipes when exposed to excessively cold temperatures.
12

Do Not Use Equipment for Purposes Other Than Those Specied
• Do not use for other than increasing the temperature of the water supply, as unexpected accidents
may occur as a result.
Check Water Supply Quality
• If the water supply is hard, acidic or otherwise impure, treat the water with approved methods in
order to ensure full warranty coverage.
See water quality statement on page 36.
Frost Protection
• When installed, power to the unit must be kept switched on, otherwise the appliance should be
drained.
This prevents water freezing, and causing damage to the water heater.
WARNING
CAUTION
For NG Gas
Before Installation
xx
xxxxxxxx
xx
xx xx
xx
Check the Gas
• Check that the data label (Side of casing).
• Check that the gas supply line is sized for
TH50ECR6N, TH50ECR6L: 328 MJ/hr, 328 MJ/hr
TH32ECR6N, TH32ECR6L: 217 MJ/hr, 217 MJ/hr
TH28ENR6N, TH28ENR6L: 220 MJ/hr, 220 MJ/hr
• DO NOT OPERATE WITH ANY OTHER GAS TYPE.
Check the Power
• The power supply required is 230 - 240VAC, at 50Hz.
Using the incorrect voltage may result in fire or
electric shock.
Warning labels
• Located on the side of the casing -PLEASE READ THESE LABELS CAREFULLY!
13

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
Specications
Model Name TH50ECR6N TH50ECR6L
Approval certification number SAI-400353
Type Installation Outdoor, Wall Mounted
Air Supply/Exhaust Power Flue
Operating Pressure 200 -800 kPa
Minimum Flow Rate 2.0 L/min.
Dimensions 830mm (Height) x 480mm (Width) x 360mm (Depth)
Weight 50 kg
Water Holding Capacity 3.5 L
Connection Sizes
Water Inlet R 1 (25mm)
Hot Water Outlet R 1 (25mm)
Gas Inlet R3/4 (20mm)
Power Supply Supply 230 - 240 VAC (50Hz)
Consumption NG/ULPG: 83 W/77 W Freeze Prevention 288W
Burner Injector Size NG/ULPG : 1.6mm / 2.6mm NG/ULPG : 0.9mm / 1.4mm
Accessories Remote Controller, Remote Controller Cord, Anchoring Screws
Gas
Consumption
NG 328 MJ/hr
ULPG 328 MJ/hr
Maximum Hot Water 25°C Rise 50 L/min
Model Name TH32ECR6N TH32ECR6L
Approval certification number SAI-400264
Type Installation Outdoor, Wall Mounted
Air Supply/Exhaust Power Flue
Operating Pressure 200 -1,000 kPa
Minimum Flow Rate 2.5 L/min.
Dimensions 615mm (Height) x 464mm (Width) x 240mm (Depth)
Weight 32 kg
Water Holding Capacity 2.0 L
Connection Sizes
Water Inlet R 3/4 (20mm)
Hot Water Outlet R 3/4 (20mm)
Gas Inlet R 3/4 (20mm)
Power Supply Supply 230 - 240 VAC (50Hz)
Consumption NG/ULPG: 75.9 W/75.9 W Freeze Prevention 223W
Burner Injector Size NG/ULPG : 2.4mm / 1.7mm
Accessories Anchoring Screws
Gas
Consumption
NG 217 MJ/hr
ULPG 217 MJ/hr
Maximum Hot Water 25°C Rise 32 L/min
• Specifications may be changed without prior notice.
• The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and
water temperature.
14

Model Name TH28ENR6N TH28ENR6L
Approval certification number SAI-400265
Type Installation Outdoor, Wall Mounted
Air Supply/Exhaust Power Flue
Operating Pressure 200 -1,000 kPa
Minimum Flow Rate 2.5 L/min.
Dimensions 600mm (Height) x 350mm (Width) x 240mm (Depth)
Weight 26 kg
Water Holding Capacity 1.0 L
Connection Sizes
Water Inlet R 3/4 (20mm)
Hot Water Outlet R 3/4 (20mm)
Gas Inlet R 3/4 (20mm)
Power Supply Supply 230 - 240 VAC (50Hz)
Consumption NG/ULPG: 75.9 W/75.9 W Freeze Prevention 193W
Burner Injector Size NG/ULPG : 2.4mm / 1.5mm
Accessories Anchoring Screws
Gas
Consumption
NG 220 MJ/hr
ULPG 220 MJ/hr
Maximum Hot Water 25°C Rise 28 L/min
• Specifications may be changed without prior notice.
• The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and
water temperature.
15

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
* Locate the appliance in an area where water leakage from the unit or connections will not result in
damage to the area adjacent to the appliance or to the lower floors of the structure. When such locations
cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under
the appliance. The pan must not restrict combustion air flow.
DANGER
Indoor
• This water heater is for outdoor installation only.
Never install it indoors.
Do not enclose the termination with corrugated
metal or other materials.
This will cause carbon monoxide
poisoning and a potential fire
hazard.
Prohibited
WARNING
Choosing Installation Site
• Avoid places where fires are common, such as those where petrol,
benzene and adhesives are handled, or places in which corrosive gases
(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.
May result in fire.
• Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the performance of the
device fan to drop and incomplete combustion to occur as a result.
• Avoid installation in places where special chemical agents
(e.g., hair spray or spray detergent) are used.
Ignition failures and malfunction may occur as a result.
• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a
mobile home, recreation vehicle or on a boat.
• Leave the proper clearance between the water heater and nearby
objects (trees, timber, boxes with flammable materials etc.).
Upper:
Min.500mm
Rightside:
Min.500mm
Leftside:
Min.500mm
Front:
Sug.600mm
16

Before installing, check for the following:
The location of the flue terminal must comply with the clearances shown on this page. If you are
unsure about clearances not indicated here, in general refer to AS/NZS5601, or your local authority.
In Western Australia refer to the WA Office of Energy rules and regulations.
Flue outlet must be free from any combustible material.
The continuous flow water heaters are certified for side by side installation and hence the flue terminal
clearance between the units mentioned in AS/NZS 5601.1 does not apply.
SAI Global certification allows minimum clearance of 268mm (exhaust to inlet of adjacent unit) for 28L
outdoor units.
SAI Global certification allows to install with the minimum distance of 480mm(between the centerlines of
the flue terminal) for 50L outdoor units.
WARNING
• Install the water heater in a location where it is free from obstacles and
stagnant air.
• Consult with the customer concerning the location of installation.
• Do not install the water heater near staircases or emergency exits.
• Do not install the water heater where the exhaust will blow on outer walls
or material not resistant to heat. Also consider the surrounding trees and
animals.
The heat and moisture from the water heater may cause discoloration of
walls and resinous materials, or corrosion of aluminium materials.
• Do not locate the flue termination directed towards a window or any other
structure which has glass or wired glass facing the termination.
• Install in a location where the exhaust gas flow will not be affected by fans
or range hoods.
• Take care that noise and exhaust gas will not affect neighbours.
• Avoid installation where the unit will be exposed to excessive winds.
• Before installing, make sure that the flue termination will have the proper
clearances according to AS/NZS5601, or your local authority.
• On combustible surfaces e.g. weatherboards etc. it is not required to install
a fire proof back board.
CAUTION
Prohibited
Installation Clearances
17

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
CLEARANCES FOR FLUE TERMINAL (front of heater)
The location of the flue terminal must comply with the clearances shown on this page. If you are unsure
about clearances not indicated here, in general refer to AS/NZS5601, or your local authority. In Western
Australia refer to the WA Office of Energy rules and regulations.
Shadingindicates prohibited area foreterminals
=Flueterminal
T= Gas meterM
=Mechanical airinlet
I=Electricitymeterorfusebox P=Fan-assisted appliance only
Z
Directionof
discharge
SeeNote1
SeeNote1
Openinginto
abuilding
T
T
T
T
T
T
C
M
d
d
e
e
h
j
j
j
n
b
f
a
h
P
Z
k
k
g
g
I
T
Door
FIGURE 6.2 (in part) LOCATION OF FLUE TERMINALS OF BALANCED FLUE,
ROOM-SEALED, FAN-ASSISTED OR OUTDOOR APPLIANCES
AS/NZS 5601.1:2013
Appliances up to 50 MJ/h input
Space heaters up to 50 MJ/h input
Other appliances up to 50 MJ/h input
Appliances over 50 MJ/h input andup to 150 MJ/h input
Appliances up to 150 MJ/h input*
Appliances over 150 MJ/h input up to 200 MJ/h input*
Appliances over 250 MJ/h input*
Ref. Item Minimum clearances
mm
Fan assisted
a Below eaves, balconies andother projections:
200
Appliances over 50 MJ/h input 300
b From the ground, above a balcony or other surface * 300
c From a return wall or external corner * 300
d From a gas meter (M) (see Note 5)
(see Clause 5.11.5.9 for vent terminal location of regulator)
(see Table 6.7 for New Zealand requirements)
1 000
eFrom an electricity meter or fuse box (P) †(see Note 5) 500
f From a drainpipe or soil pipe 75
g Horizontally from any building structure * or obstruction facing a terminal
500
h From any other flue terminal , cowl, or combustion air intake * 300
300
300
j Horizontally from an openable window, door, non-mechanical air inlet, or any other opening
into a building with the exception of sub-floorventilation:
Appliances over 200 MJ/h input up to 250 MJ/h input* 500
All fan-assisted flue appliances, in the direction of discharge 1 500
1 500
k From a mechanical air inlet, including a spa blower 1 000
n Vertically below an openable window, non-mechanical airinlet, or any other opening into a
building with the exceptionof sub-floor ventilation:
150
500
1 000
Appliances over 150 MJ/h input 1 500
*Unless applianceis certified forcloser installation.
†Prohibited area below electricity meter or fuse box extends to ground level.
NOTES:
1Where dimensionsc, j or k cannot be achievedan equivalent horizontal distance measured diagonally from
the nearestdischarge point of the terminal to the opening maybe deemed by theTechnical Regulator to comply.
2See Clause 6.9.4 forrestrictions on a flue terminal u ndera covered area.
3See Figure J3 forclearances required from a flue terminal to an LP G as cylinder . A flue terminal
is considered to be a source of ignition.
4For appliances not addressed abov e acceptance should be obtain ed fromthe Technical Regulator .
5Minimum clea rances d and e also apply to any combustion air in take openings of appliances.
FIGURE 6.2 (in part) LOCATION OF FLUE TERMINALS OF BALANCED FLUE,
ROOM-SEALED, FAN-ASSISTED OR OUTDOORAPPLIANCES
18

IllustrationCheck
4. Drill holes for the remaining four screws.
5. Hang the unit again by the first screw, and then
insert and tighten the remaining four screws.
6. Take waterproofing measures so that water does
not enter the building from screws mounting the
device.
• Make sure the unit is installed securely so that it will
not fall or move due to vibrations or earthquakes.
Securing to the wall
1. Drill a single screw hole, making sure to hit a stud.
2. Insert and tighten the screw and hang the unit by the
upper wall mounting bracket.
3. Determine the positions for the remaining four screws
(two for the top bracket and two for the bottom), and
remove the unit.
• Installation must conform with all local building, water and Gas Regulations and AS/NZS5601.
• The weight of the device will be applied to the wall. If the strength of the wall is not sufficient,
reinforcement must be done to prevent the transfer of vibration.
• Do not drop or apply unnecessary force to the device when installing. Internal parts may be
damaged and may become highly dangerous.
• Install the unit on a vertical wall and ensure that it is level.
• Insure no additional pressure is applied to the pipework.
Locating Screw Holes
Mounting
Structure
• When installing with bare hands, take caution to not
inflict injury.
• Be careful not to hit electrical wiring, gas, or water
piping while drilling holes.
Item
CAUTION
Be sure to do
Mounting Bracket
(upper)
Anchoring Screw
Location of Screw Hole
Locating Screw Holes
Installation
TH32ECR6 series, TH28ENR6 series
19

Thermann Installer's Manual
Gas Continuous Flow Water Heaters
IllustrationCheck
4. Drill holes for the remaining six screws.
5. Hang the unit again by the first screw, and then
insert and tighten the remaining six screws.
6. Take waterproofing measures so that water does
not enter the building from screws mounting the
device.
• Make sure the unit is installed securely so that it will
not fall or move due to vibrations or earthquakes.
1. Drill a single screw hole, making sure to hit a stud.
2. Insert and tighten the screw and hang the unit by the
upper wall mounting bracket.
3. Determine the positions for the remaining six screws
(four for the top bracket and two for the bottom), and
remove the unit.
Locating Screw Holes
Mounting
Structure
• When installing with bare hands, take caution to not
inflict injury.
• Be careful not to hit electrical wiring, gas, or water
piping while drilling holes.
Item
CAUTION
Mounting Bracket
(upper)
Anchoring Screw
Location of Screw Hole
Locating Screw Holes
TH50ECR6 series
20