Myson 40G, 50G, 60G, 70G, 80G Installation Manual

Select Radiator Series

Installation Guide

Revised 6/12

MYSON

MYSON

Information Symbols ...............................................................................3

Before You Begin ....................................................................................4

Rough-In ..................................................................................................5

Connection Arrangements .....................................................................6

Connection Options ................................................................................7

Optional Piping Arrangements ...............................................................8

Conventional Wall Installation ................................................................9

Concrete Wall Installation ....................................................................10

Valve Installation ..............................................................................11-12

System Start-Up & Maintenance ..........................................................13

Select Radiator Series

Table of Contents

Myson, Inc. Limited Warranty

Myson, Inc warrants the following products against defects in material and workmanship to the original owner
for the duration listed from date of installation or three months after date of shipment, whichever comes first.

The remedy in all cases shall be to repair or replace the product at Myson’s discretion upon verification of a
factory defect. If replacement is required, and an exact replacement product is no longer available, Myson
reserves the right to furnish a similar product of equal value.

NO REMOVAL, SHIPPING OR INSTALLATION EXPENSES ARE REIMBURSIBLE

The original purchaser is responsible for determining the suitability of the Myson product for their installation.
Installation and troubleshooting should be performed by a competent technician with knowledge of hydronic
heating and/or basic electricity.

Damages occurring during shipment, transit, storage or handling, abuse, neglect, accident, misapplication,
incorrect power line voltage, improper water source or connection, fire, flood or other Acts of God are not
covered. Freight damage claims MUST be made within 10 days of receipt from Myson. No Exceptions.

STEEL PANEL RADIATORS — SELECT, T6, DÉCOR, COLUMN AND BENCH

The duration of warranty for steel panel radiators is 5 Years.

What is covered:

• Painted finishes will not peel or flake from the surface of the radiator.

• The body of the radiator and its welded joints will not leak when the product is properly installed and
maintained according to Myson’s instructions.

What is not covered:

• Rust occurring from improperly sealed threaded connections or oxygen corrosion.

• Electrolytic corrosion caused by failure to flush the system properly after initial installation.

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Information Symbols

NOTE: You will see these symbols within the text of this manual, drawing your
attention to important information.

Myson products are designed to be installed by professional tradespeople.
Myson instructions are meant to be thorough; however it is assumed that the
installer has the appropriate technical knowledge related to building codes,
standard trade practices, and proper use of the tools of the trade. Should a
homeowner without such knowledge or skill take it upon him/herself to attempt
the installation, Myson will not be responsible for any damages, injuries or
unsatisfactory performance of the Myson product used.

Information following this symbol indicates that it is important for the correct
installation or use of the product. Failure to heed this information may affect the
performance or useful life of the product. Risk of property damage or personal
injury is low.

MYSON

Information following this symbol must be followed without exception.
Failure to follow these directions could result in moderate property
damage or the possibility of personal injury.

Information following this sign must be carefully followed without exception.
Failure to do so could result in significant and extensive property damage or
serious personal injury or death.

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Before You Begin

INSPECT FOR DAMAGE
NOTE: Inspect materials for concealed shipping damage. You only have 11 days to file a
freight claim. If items are damaged or missing, please call Myson at 1-800-698-9690.

INSPECTION FOR COMPLETENESS
Unpack the Select Radiator carefully to avoid damage or loss of parts.

The Select Radiator should come with the following parts:

2 - Concrete wall brackets
1 - Stainless steel solid plug
1 - Stainless steel air vent plug

INTRODUCTION

The Myson Select Radiator will keep any room in comfort and style. We at Myson, Inc. thank you
for your purchase of the Select Radiator. Each radiator combines Myson’s compact design and
advanced steel construction with a durable baked epoxy/polyester enamel powder coat finish.
Myson’s sleek styling and thorough testing provides attractiveness and dependability. Myson’s
goal is to assure the highest performance, quality, reliability and outstanding customer service.

CAUTION
Step 1 Read this entire instruction manual thoroughly before beginning installation.
Step 2 To ensure full efficiency of your Myson Select Steel Panel Radiator, please follow all the

instructions carefully observing the caution notes for each step.

Step 3 Failure to follow these instructions will invalidate the manufacturer’s warranty.

APPLICATION

Myson radiators are only for use in recirculating closed loop hydronic heating systems. These
radiators are not recommended for gravity systems. Myson Select Radiators are designed to work
with a maximum working pressure of 78 PSI and no more then 212 degrees F water temperature.

DO NOT USE STEAM IN THESE RADIATORS.

DESIGN AND LAYOUT CONDITIONS

Myson Select Radiators should only be used with a recirculating pump closed loop hydronic
heating system. Please consult national and local codes for specific restrictions that may be
imposed on your installation. Position your radiator away from your circulator pump to avoid
either excess pressure that could force water out the air vent or excess suction that could draw
air into the system. The preferred positioning for the Select radiator is below a window where
it can minimize downdrafts from glazed areas.
Myson Radiators may be hot to the touch. Generally the surface temperature is at 10-12
degrees Fahrenheit below system water temperature. Care must be taken to consider room
occupant’s ability to sense or understand that radiators may be hot. Should radiator surface or
system water temperature be an issue, please contact MYSON at 1-800-698-9690 for information
on the MYSON LST radiators. LST (Low Surface Temperature) Radiators can be a viable solution
where temperatures are a safety concern.

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Rough-in

Rough-ins given are for MYSON TRV and Control Valves only. Valve specifications vary by
manufacturer. Myson will not be responsible for damage or repair of property for rough-in with
non-Myson Valves. Prior to committing pipe work behind finish floor or wall materials, consult
Myson for assistance at 1-800-698-9690.

Dimensions are in inches. All valves are by MYSON and are 1/2” thread engagement in a vertical
pattern. For two LKD valves, use LKD and TRV dimensions.

MYSON

**

* Using optional EZ-Brackets

It is not recommended to route piping through the walls for single panel radiators (TYPE 11) as
there is generally insufficient room to leave the wall and make the angle into the radiator.

Nominal
Height Size C

12” 30 9-11/16”
16” 40 13-5/8”
24” 60 21-1/2”
28” 70 25-7/16”

Actual LKD & FF LKD & TRV (2) DAV12 TRV & DAV12
Model Length Valves Valves Valves Valves
A B B B B

40G 15-3/4” 19-3/8” 19-1/8” 18-3/4” 19
50G 19-11/16” 23-5/16” 23-3/16” 22-11/16” 22-15/16”
60G 23-5/8” 27-1/4” 27-1/8” 26-3/8” 26-7/8”
70G 27-9/16” 31-3/16” 31-1/16” 30-9/16” 30-13/16”
80G 31-1/2” 35-1/8” 35-” 34-1/2” 34-3/4”
90G 35-7/16” 39-1/16” 38-15/16” 38-7/16” 38-11/16”
100G 39-3/8” 43-” 42-7/8” 42-3/8” 42-5/8”
110G 43-5/16” 46-15/16” 46-13/16” 46-5/16” 46-9/16”
120G 47-1/4” 50-7/8” 50-3/4” 50-1/4” 50-1/2”
130G 51-3/16” 54-13/16” 54-11/16” 54-3/16” 54-7/16”
140G 55-1/8” 58-3/4” 58-5/8” 58-1/8” 58-3/8”
160G 63-” 66-5/8” 66-1/2” 66-” 66-1/4”
180G 70-7/8” 74-1/2” 74-3/8” 73-7/8” 74-1/8”

”

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CONNECTIONS: Myson Radiators come with two 1/2” BSP connections located at the

bottom of both sides on the radiator.

P Plug V Vent S Supply R Return

Preferred methods A, B, C, and D

Connection Arrangements

SV

VSR VV

AB C D

P

For alternate methods E, F, G, and H, derate the radiation by 5%

P

R

R

V

V

EFGH

SR

R

R

P

PS

SVVS

P

RPPR

S

S

P

All Myson Radiators are shipped with nylon paint plugs. All plugs must be
removed and replaced by the appropriate plug, vent or valve. Failure to use
Myson supplied plugs may result in significant water damage!

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Connection Options

2TRV1/2ANS

MYSON

LKD 16AN

NOTE:
See Radiator Range Technical Specifications
for Mounting Details of Radiators.

TRV thermostatic valve and LKD lockshield valve

FF 16 WAC

FF WAC Wheelhead angle valve & LKD lockshield valve

LKD 16AN

2 LKD lockshield valves

Copper pipe

LKD 16AN

Copper pipe

LKD 16AN

Copper pipe

TRV head with vertical
angle body head

2TRV RS Remote sensor 2TRV RA Remote adjuster

TRV head with inverted
angle body head

888

8

8

8

8

TRV head with
straight body head

8

8

8

For best accuracy 2TRV2 head should be in a horizontal position
away from heat source. Remote Sensor or Adjuster heads are available

2TRV1/2ANS

FF LAC

Copper pipe

TRV thermostatic valve & FF LAC Lockshield angle valve

2TRV1/2ANS

DCK12

DAV12

FF WAC

FF LAC

Copper pipe

FF WAC Wheelhead angle & FFLAC lockshield angle valve.TRV thermostatic valve & Decorative manual angle valve

DAV12DAV12

2 Decorative manual angle valves

(FF LAC) Valve is set full open and white knob will not turn. Angle only.
(FF WAC) Valve white knob can turn to open or close the valve. Angle only.
(LKD) Manual valve, has chrome cap that can be removed exposing an adjustment screw to open or close the valve. Angle or straight.
(TRV) Valve is a non-electric thermostatic valve that modulates water flow in response to changes in room temperature and closes when set

temperature is achieved. NOTE: This valve will not turn on or shut off your heating system. Horizontal angle, vertical angle or straight pattern.

(DCK12) Pipe extension with compression fitting and escutcheon for use with the 2TRV1/2ANS valve.
(DAV12) Manual valve, adjust flow with Allen wrench. Valve comes with chrome pipe extension with compression fitting and escutcheon.

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The following drawings are general examples.

Consult a certified heating professional for your specific application.

Optional Piping Arrangements

General information on the use of Monoflo tees:

• Scoop type is placed on the supply

• Venturi type on the return

• If heating unit is below main or more than 4 feet
horizontally from the main, use two monoflo tees
facing each other

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Conventional Wall Installation Using Optional EZ-Brackets

Step 1 Locate studs in wall where the radiator is to be mounted.
Step 2 Mount the brackets so the radiator is a minimum of 4 inches off the floor.

• Failure to allow 4” minimum clearance below radiator can significantly reduce
radiator performance.

• Attach brackets firmly to the studs using appropriate hardware making sure
the spring loaded connection on brackets is on top.

• All Select Radiators use 2 brackets except the 180G which uses 3 brackets.

• Use a level to assure bracket is plumb.

Step 3 To install the radiator on the brackets, set the top edge of the top grill into the upper

part of the bracket then gently lift and snap the bottom into the lower part of the bracket.

Step 4 Position radiator to line up with the supply and return pipes.

Many MYSON products are in excess of 70 pounds. Care should be taken to have help to lift
larger radiators into place to avoid lifting injuries.

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Step 1 Position radiator to line up with the supply and return pipes.
Step 2 Position brackets on wall so that they line up with the centerline of the brackets on

the rear of the Select Radiator.

Step 3 Mount the brackets so the radiator is a minimum of 4 inches off the floor.

• Failure to maintain 4” minimum clearance to floor can significantly reduce
radiator’s performance.

• Attach brackets firmly to the wall using appropriate hardware.

• Use a level to assure bracket is plumb.

Step 4 Lift and seat the radiator onto the brackets.

Concrete Wall Installation

Many MYSON Radiators are in excess of 70 pounds. Care should be taken to have
help to lift larger radiators into place to avoid lifting injuries.

Select Mounting Bracket Locations

10

Nominal
Height A B C

12” 11-13/16” 6-1/4” 6-1/4”
16” 15-3/4” 8-3/16” 6-1/4”
24” 23-5/8” 9
28” 27-9/16 10-15/16” 12-3/8”

” 12-3/8”

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Valve Installation

Nylon shipping plugs are meant solely for keeping paint from radiator threads during the
painting process. Failure to remove plastic plugs and insert the stainless metal plugs can
result in significant property damage if heating system is run with plastic plugs in place.

Step 1 Remove all plastic shipping plugs on the radiator.
Step 2 Before proceeding clean tappings of any foreign material.
Step 3 Install air vent plug.
Step 4 Install blanking plugs.

NOTE: See page (5) for alternate

valve and plug locations.

Step 5 Apply teflon tape or compound to the

threaded nipple on the valve.

Step 6 Thread the nipple of the valve into the radiator

using a 7/16” or 12mm Allen wrench.

CAUTION: Do not over tighten and do not use a pipe wrench on ground joint.
Step 7 Cut the copper pipe to a correct length.
NOTE: The pipe must fit all the way up to the stop in the valve body (approx. 1” into the valve body).
Step 8 Place compression nut on copper pipe.
Step 9 Place compression ring on copper pipe.
CAUTION: DO NOT DAMAGE THE COMPRESSION RING.
Step 10 Attach valve to valve nipple and tighten coupling. Turning valve body can damage compression

ring.

CAUTION: DO NOT rotate valve body. Turn compression nut only and DO NOT OVER TIGHTEN.
Step 11 Tighten compression nut.

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If glycol is to be added to the system for freezing protection, extra care must be taken to seal
connections fully with teflon or pipe dope.

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Valve Installation

Myson products are designed to be installed by professional trades people. Myson instructions
are meant to be thorough; however it is assumed that the installer has the appropriate technical
knowledge related to building codes, standard trade practices, and proper use of the tools of the
trade. Should a homeowner without such knowledge or skill take it upon him/herself to attempt the
installation, Myson will not be responsible for any damages, injuries or unsatisfactory performance
of the Myson product used.

NOTE: MYSON products have BSP male and female threads. BSP threads are a straight running
thread NOT tapered like NPT. Myson Radiator Valves are designed with BSP threads at radiator

side and NPT or compression connections to system piping.

Step 1 Clean all threaded surfaces (both external and internal).

Step 2 Apply teflon tape or pipe dope to the male threads, leaving the first thread exposed. If using

Step 3 Using accepted trade practices assemble and wrench tighten fittings until proper

MYSON

pipe dope, also apply to the female threads of the radiator. Common practice to seal BSP
threads is to use heavy duty teflon tape, such as is used to seal gas pipe fittings, or anaerobic
pipe dope.

alignment is obtained.

Valve body stop

Copper pipe must
extend all the way to
stop. This is critical.

Compression ring

(ferrule)

Copper pipe

Compression Nut

7/16" or 12mm for 1/2" valve

Valve to Spud

Threaded
Connection

NOTE:

• B.S.P. British Standard Pipe Threads

• Myson Radiator Valves are designed with
BSP threads at radiator side and NPT or
compression connections to system piping

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System Start-Up & Maintenance

Failure to flush system of debris and flux may cause premature radiator failure, which
can result in leaks and property damage NOT covered under the Myson Warranty.

SYSTEM START-UP

Step 1 Fill and vent the system.

Step 2 Run the system for two (2) hours at full temperature with all radiator valves in the

open position.

Step 3 Shut off and drain the system while the water is still hot.

Step 4 Refill the system.

Step 5 Reheat, vent, and balance the system.

Step 6 Once the Select Radiator is filled with water the system should be left filled.

Step 7 System should be checked for leaks on seasonal start-ups. Leaks must be repaired

as automatic system fill valves allow fresh water/oxygen into the system attacking
radiators internally.

MYSON

MAINTENANCE & CLEANING
1 Once operating, avoid the introduction of fresh water and oxygen to the system to

prevent corrosion.

2 An occasional wiping with a damp cloth using a non abrasive detergent can protect
the finish of your Myson Select Panel Radiator.

3 The use of abrasive cleaners will damage the surface of your radiator, and void the
manufacturer’s warranty.

ADDITIVES

Treatment of the primary water is not usually required in a properly designed system.
Treatment may be necessary if either:
1 Local waters are known for their content of corrosive material or if high bacterial levels
are present.

2 If there is a possibility that the system may be idle during a prolonged period of freezing
temperatures, system should be either drained or protected with antifreeze. If either
corrosion inhibitors or anti-freeze is to be used, it should be added AFTER the system
has been flushed in the final stages. Use only anti-freeze suitable for potable water.

Do not put heating system into operation without checking for leaks with the system up to
full operating temperature. Leaks can appear in a heated system that were not noticeable
with a cold system or air pressure check.

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Notes

MYSON

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Notes

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Select Radiator Series

Installation Guide

MYSON

1-800-698-9690

948 Hercules Drive

Colchester, VT 05446

Fax: [phone]

www.MysonInc.com

In accordance with our policy of continual product improvement,

we reserve the right to amend specifi cations without prior notifi cation

212033-6/12