resideo TK300-15 Hydronic Expansion Tank Instruction Manual
- June 13, 2024
- resideo
Table of Contents
TK300 & XPS SERIES
CLOSED HEATING SYSTEM TANKS
DIAPHRAGM EXPANSION TANKS
INSTALL ATION INSTRUCTIONS
The Diaphragm Expansion Tank is designed to absorb the expansion of water in a
closed, hot water heating or solar system.
Maximum operating temperature is 240 °F (116 °C); maximum operating pressure
is 100 PSI (690 KPA).
The tank is precharged at 12 PSI. The diaphragm separates the air cushion from
the water and prevents absorption of the air cushion by the water, thus
avoiding water logging. The Expansion Tank maintains pressure in the system
and utilizes the smallest possible space.
PRODUCT INFORMATION
Model No.| Total Volume| Max.
Acceptance
Volume| Dimensions| System Connection
---|---|---|---|---
Diameter| Length
TK300-15| 2.0 Gal.| 1.0 Gal.| 8″| 13″| 1/2″M
TK300-30| 4.4 Gal.| 2.5 Gal.| 11″| 15″| 1/2″M
TK300-60| 6.7 Gal.| 2.7 Gal.| 11″| 20″| 1/2″M
TK300-90| 14.0 Gal.| 11.3 Gal.| 15″| 21″| 1/2″M
XPS-030V| 14.0 Gal.| 11.3 Gal.| 15″| 24″| 1″F
XPS-040V| 20.0 Gal.| 11.3 Gal.| 15″| 32″| 1″F
XPS-060V| 32.0 Gal.| 11.3 Gal.| 15″| 48″| 1″F
XPS-090V| 44.0 Gal.| 34.0 Gal.| 22″| 36″| 1-1/4″F
XPS-110V| 62.0 Gal.| 34.0 Gal.| 22″| 47″| 1-1/4″F
XPS-160V| 86.0 Gal.| 46.0 Gal.| 26″| 47″| 1-1/4″F
Connections: M = Male NPT F = Female NPT
INSTALLATION
We recommend installing the Expansion Tank by screwing it onto the 1/2”
connection at the bottom of an Air Eliminator or Air Purger located on the
main hot water supply pipe close to the boiler. See Fig. 1. The installation
of an Air Eliminator assures automatic removal of all air and microbubbles
from the system. The Expansion Tank may also be screwed onto any convenient
fitting such as a tee anywhere on a hot water heating system, or it may be
remotely located and piped to any convenient connection. The tank should be
installed in a vertical position. Series XPS tanks are provided with a stand
for floor mounting.
Pipe the tank to the inlet side of the circulating pump.
WARNING
The expansion tank shall not be installed on a dead-end pipe.
OPERATION
After the Expansion Tank is installed on the system, fill the system and establish circulation. The Air Eliminator will automatically vent the air from the system. Operate the boiler to bring the system temperature up to the high- limit shut- off temperature. Observe the system pressure to assure that it does not exceed the relief valve setting. If the system pressure is too high, reduce to the desired pressure by drawing a small amount of water from the system, or by installing the next larger Expansion Tank. Do not release air from tank. Air charge in tank should equal the setting of the reducing valve (12 PSI standard, 83 KPa).
SERVICE
If the system pressure is too high, check the pressure reducing valve (fill
valve) for a malfunction (i.e. dirt on the valve seat).
Check to see if the Expansion Tank has lost air by reducing system pressure to
zero and reading the tank pressure with a tire gauge. Check for possible
tankless heater leak by shutting off water supply to fill valve, reducing
system pressure and observing pressure increase which would indicated a leak.
If the relief valve drips water after excess system pressure condition has
been corrected, flush relief valve by quickly raising lever several times. If
dripping continues after flushing, replace relief valve.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
33-00530—04 M.S. Rev. 07-22 | Printed in United States
www.resideo.com
© 2022 Resideo Technologies, Inc. All rights reserved.
This product is manufactured by Resideo Technologies, Inc. and its affiliates.
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