Watts DET-5-M1 Installation Instructions

Models: DET-5-M1, DET-12-M1, DET-20-M1
Potable Hot Water Expansion Tank
Installation Instructions
!
W ARNING!
Improper installation, adjustment, alteration, service or maintenance can cause property dam-
age, serious bodily injury or death. Read instructions completely before proceeding with instal-
lation. Only qualified personnel may install or service this equipment in accordance with local
codes and ordinances.
Do not exceed 80psi (5.5 bar) air charge. Air charge pressure exceeding 80psi (5.5 bar) could
become hazardous and will void any and all warranties, either written or implied. Failure to fol-
low these instructions will result in the possibility of property damage, serious bodily injury
or death.
This Expansion Tank is designed and intended for water storage at a maximum pressure of
150psi (10.3 bar) and a maximum temperature of 200°F (93ºC). Any use other than for potable
water or a sustained or instantaneous pressure in excess of 150psi (10.3 bar) or 200°F (93ºC)
is UNSAFE and can cause property damage, serious bodily injury or result in death.
Disclaimer: The manufacturer of this tank does not accept any liability or other responsibility for
personal injury or property damage resulting from improper use, installation or operation of this tank
or the system of which it is a part.
Notice: The expansion tank, piping and your connections may in time leak. Select a location
to install the expansion tank where a water leak will not damage the surrounding area. The manu-
facturer is not responsible for any water damage in connection with this expansion tank.
Acceptance Volume
Air Side Water Side Volume at 150psi
Pre-pressure (10.3 bar) (gallons)
(psi) (bar) DET-5-M1
20 (1.4) 1.500
40 (2.8) 1.272
60 (4.1) .996
80 (5.5) .720
DET-5-M1
Order No.
Description 0067700
Max. Pressure - psi 150
Max. Temp. - °F 200
Tank Volume - gal. 2.1
Tank Acceptance - gal. .85
Air Pre-charge - psi 20
3
Connections Size - in. ⁄ male
4
1
Diameter - in. 8
1
Length - in. 11
Weight - lbs. 7
DET-12-M1 DET-20-M1
2.801 7.102
2.208 5.882
2.076 4.705
1.716 4.009
DET-12-M1 DET-20-M1
Order No. Order No.
0067701 0067702
150 150
200 200
4.5 8.5
1.8 3.4
20 20
3 3
⁄ male ⁄ male
4 4
1
⁄ 10 12 ⁄
2 2
3
⁄ 15 19 ⁄
2 16
10 15
Support Tank
in Optional
Horizontal
Position
(Optional Location)
Water
Supply
Watts
Watts
Shutoff
Backflow Preventer
Valve
Certified to ANSI/NSF 61
(73°F/23°C)
(Optional Location)
To System
Expansion
Tank
Water
Watts
Heater
Pressure
Gauge
Watts Pressure
Reducing Valve
Floor Drain
Figure 1
IS-DET-M1
Listed by IAPMO
Watts
T&P
Safety
Relief
Valve