How it Works
Atmor
Loading...
AT90514TB
Installation Manual
32 pgs582.55 Kb0

Atmor AT90514TB Installation Manual

Hot Water on Demand
Installation and Operation Guide
Thermo Boost
Instant Water Heater
Digital electric tankless instant water heater provides endless supply
of hot water while signicantly conserving energy and water
www.atmorusa.com
P.N. 197377
Table of Contents
Operation Guide ..........................................................................................................................11
1
Important Safety Guidelines
1. Safety Guidelines
Read this manual thoroughly before attempting to install the instant water heater.
Failure to follow the safety instructions in this manual may cause damage to the unit, and could also result in property damage, personal injury, or loss of life.
Failure to comply with the safety, installation or operating instructions voids the product warranty.
The product manufacturer and the product distributor will not be liable for any damages or injury because of failure to comply with the installation and operating instructions
specied in this manual or because of improper use.
Never attempt to install, disassemble, inspect or repair, disassemble or service the water
heater without rst shutting off all power to the unit by means of the circuit breaker on the
main electrical panel.
The water heater must be installed by a licensed electrician and in compliance with all national, state, provincial and local electrical and building regulations.
Always contact your local authorized distributor for service.
2. Safety – Important Notes
• For household and indoor use only.
• Do not immerse in water.
• For power supply connection use 6 AWG (10.5kW) or 4 AWG (14kW) wires or larger, suitable for at least 90°C (194°F).
• The heater must be installed by a professional technician and according to the installation instructions.
• The heater must be grounded.
• The heater must be connected to a dedicated circuit breaker on the main electrical panel.
• The plumbing installation must be completed before the electrical installation.
• The plumbing installation requires metal pipes or reinforced hoses that can withstand pressure up to 116 psi.
• A pressure relief device (PRD) must be installed at the inlet of the water supply line.
• To ensure proper operation, the water supply ow rate must be at least 0.5 gpm.
• Do not install the heater where it may be subjected to direct sunlight, rain, splashing water, or freezing temperatures.
• This unit is intended for heating water only. Do not attempt to use the unit for heating any other kind of liquid.
Before connecting the product to a public power network, consult your local power supply authority to ensure the power network meets the stated requirements.
SAVE THESE INSTRUCTIONS
2
Technical Information
Electrical Specications
Thermo Boost
10.5 kW
Heating elements 2 2 Watts 10,500 W 14,000 W Kilowatts 10.5 kW 14 kW Voltage 240 V 240 V Circuit breaker amperage 50 A 70 A Breaker/relay double-pole double-pole Total connection load 43.7 A 58 A Cable size (minimum) 6 AWG 4 AWG
Thermo Boost
14 kW
Plumbing Specications
Minimum water ow to activate unit 0.5 gpm Working pressure 7–115 psi (0.5–8 bar) Tested pressure 230 psi (16 bar) Water connections 1/2" NPT
Flow Rate
Temperature Rise
Δt (°F)
77 0.87 0.95 45 1.7 2.3 35 2.2 2.9
Thermo Boost
10.5 kW
Flow Rate (gpm)
Thermo Boost
14 kW
Physical Dimensions
Height Width Depth Weight
1
/2 in.
9
(235 mm)
11 3/8 in.
(289 mm)
4 1/8 in.
(104 mm)
3
5 lb 11oz
(2.58 kg)
Plumbing
01 02
The plumbing installation must be completed before the electrical installation.
Residential plumbing systems with unstable pressure or pressure above 5
bar require the application of a pressure
stabilizer valve, set to 43-72 psi (3–5 bar).
Copper water pipes are recommended for use within three feet of the unit’s water inlet
05 06 08
and outlet. Other types of piping can be used
provided that are rated for high temperature
applications.
If installing the heater on an upper oor or in
an attic, be sure installation is in compliance with local code. Install a drip pan with drainage, or a leak detector and automatic
shutoff valve, to prevent damage in case of
a leak.
Before proceeding to electrical installation, run water through the unit
for several minutes to ush out any air
bubbles from the water line.
A pressure relief device (PRD) must be
installed on the heater’s incoming water supply line prior to installing the unit. The maximum recommended operating water pressure is 116 psi (8 bar).
0403
The plumbing installation requires pipes or reinforced
exible hoses that can
withstand pressure up to 116 psi (8 bar) and that are rated for high temperature applications.
07
After plumbing installation is completed, carefully
inspect all ttings and
connections, and the
pressure relief device for
leaks.
4
Mounting
The mounting surface must be solid and secure.
01 02
The unit must be installed in an upright position with the water inlet and outlet at the bottom.
Make sure the unit is
level prior to securing the
mounting screws.
The water heater must be installed in a manner that prevents
contact with combustible materials. Keep combustible materials at
06
07
least two feet away from the heater and hot water output pipe. The water heater and hot water outlet pipe must be securely out of
the reach of children to prevent tampering with controls or contact
with an extremely hot pipe.
If installing the heater on an upper oor or in an attic, be sure
installation is in compliance with local code. Install a drip pan
with drainage, or a leak detector and automatic shutoff valve, to prevent damage in case of a leak.
0403
Use mounting screws that are at least 1 inch in length.
05
Do not install the unit above electrical boxes
or junctions.
5
Assembly Instructions
Connect the pressure relief device (PRD) to the unit (Figure 1)
01
IMPORTANT – Do not omit this step. A PRD must be installed.
03
Disconnect the cables
from the PCB within
the unit. (Figure 3)
Connect the incoming water line to the heater inlet (on left side), and connect
05 07
the outgoing water line to the heater outlet (on right side). Use a hose that can withstand pressure up to
Make sure power to the unit is shut off by means of the dedicated circuit breakers on the main electrical panel.
Run the power cable wires from the circuit breakers on the main
electrical panel to the water heater. Connect the power cable to the terminal block within the unit.
Make sure the correct breaker size and wire gauge have been used.
Make sure all wire connections are tight and secure. Make sure the unit is connected to a ground in accordance with
applicable codes. (Figure 6)
04
116 psi (8 bar)
(Figure 5).
02
Remove the appliance covers (Figure 2).
Mount the unit on the wall with 4 screws
at the marked points. (Figure 4)
Make sure the unit is horizontally level,
with water inlets and outlets at the
bottom. (Figure 5)
06
Run water through the
unit for one minute, and make sure there are no leaks.
6
1
Rubber
PRD
Cold Hot
32
4
5
Water Filter
7
6
10.5kW-14kW
L2
L2
L1
L1
Assembly Instructions
09 1008
Reconnect the cables to
the PCB within the unit.
(Figure 3)
Restore power to the unit by means
of the dedicated circuit breakers on
11
12
the main electrical panel.
Do not install the heater where it may
be subject to direct sunlight, and freezing temperatures.
Place the front cover
onto the unit and reattach it with 2 screws.
(Figure 2)
Before turning on power to the water heater,
open several hot water
faucets and allow water to run through the unit for
several minutes to purge
any air from the heater and water lines.
This step must be performed before turning on power to the heater. Failure to perform this step may result in permanent damage to the heater and heating elements.
8
Electrical Diagram
2 Phase, 10.5kW 240V
Heating Element
Heating Element
21 Phase, 14kW 240V
Heating Element
Heating Element
Heating Element
TRIAC1
TRIAC2
TRIAC1
TRIAC2
TRIAC
T1
Thermostat
T2
Thermostat
T1
Thermostat
T2
Thermostat
T1
Thermostat
MainPCBA
Display PCB
MainPCBA
L1
GND
L2
S1
Power switch
Temp Sensor
t
L1
GND
L2
S1
Power switch
Temp Sensor
t
9
Display PCB
Loading...
+ 22 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use