Tamas Snow Melt Series User manual

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Tamas Hydronic Panels
User Guide
Snow Melt Series
50K BTU - 350K BTU Installaon Guide
Version 1.0

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Tamas Hydronic Panels
Snow Melt Series
Table of Contents
Introduction................................................................................................................................ 3
Components................................................................................................................................4
Operation.................................................................................................................................... 5
Technical Data............................................................................................................................ 6-9
Snow Sensor Installation.......................................................................................................... 10-11
Wiring...........................................................................................................................................12
Modular Expansion Panels.......................................................................................................13
Warranty......................................................................................................................................14
* Note:
The following parts lists and applicaon drawings are general samplings. Each panel conguraon dictates the required components, including
pump type. See the Technical Data secon of the manual for specic informaon on each part in your parcular variaon of the Tamas I.B.C. Boiler
Board.
This User Guide is Applicable to:
Tamas Snow Melt Panels
T-SM-HBX-50HX 50, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-100HX 100, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-150HX 150, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-200HX 200, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-250HX 250, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-300HX 300, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
T-SM-HBX-350HX 350, 000 BTU Snow Melt Panel with HBX SNO-0550, SNO-0110, SNO-0111
Safety Procautions
Only suitably qualied individuals with formal training in electrical controls and hydronic systems
should aempt the installaon of this panel. Incorrect installaon will aect the warranty provided
with this panel.
During installaon and operaon, avoid injury from touching the hot surface of the pipe.
Please follow all warning signs on the panel for your own safety while dealing with the installaon
and service of this panel.

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Tamas Hydronic Panels
Snow Melt Series
Overview, Options and Dimensions
Description
The Tamas Snow Melt Panel provides mixing and
distribuon for outdoor snow and ice melng applicaons.
The adopted conguraon is an innovave variant with the
use of the injecon pump, and an automac balancing of
the primary ow parcularly praccal and reliable.
The snowmelt system pump is piped independently from
the boiler loop so that the only head loss that needs to be
calculated in the system is the piping from the panel to the
manifold, and the loops in the slab. This feature allows for
higher ow rates and head losses if needed, which in turn
expands the range of pumping ability for the system pump.
The control on the panel measures slab temperature,
return temperature, as well as boiler loop temperature to
ensure the return water going back to the boiler does not
shock the boiler heat exchanger.
Main Features
• Stainless steel back plate and lockable stainless steel
cover
• Brazed heat exchanger
• 3/4“connecons.
• Dynamic balancing valve
• ETL approved
Technical Data
• Max. Operang Temperature: 93°C/200°F
• Max. Ambient Temperature: 49°C/120°F
• Max. Operang Pressure: 10 Bar/145 PSI
T-SM-HBX-150HX Model Shown
SNO-0550
CentralProcessing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
STATUS
SLAB INT
SUPPLY
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
20°F
95°F
75°F
10°F
25°F
120°F
Introduction

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Tamas Hydronic Panels
Snow Melt Series
SNO-0550
CentralProcessing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
STATUS
SLAB INT
SUPPLY
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
20°F
95°F
75°F
10°F
25°F
120°F
1
7
10
8
3
6
4
11
5
12
9
2
Components
1Stainless Steel Back Plate
2Lockable Stainless Steel Cover (Oponal)
3Tamas Control Box
4Temperature Gauge
524V Transformer
6Injecon Pump UPS 15-58
7Brazed Plate Heat Exchanger LA14-30
8HBX Controls SNO-0550
911/4” Air Eliminator
10 11/4” Balancing Valve
11 System Pump
12 Boiler Pump
Components
T-SM-HBX-150HX Model Shown
UPS 15-58 on 50K BTU Models
UPS 26-99 on 100K-300K BTU Models
UPS 26-150 on 350K BTU Models
UPS 15-58 on 50K BTU Models
UPS 26-99 on 100K-300K BTU Models
UPS 26-150 on 350K BTU Models

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Tamas Hydronic Panels
Snow Melt Series
Operation
SNO-0550
CentralProcessing Unit
Relays:
240VAC5A Max
Input:
120VAC15A Max
ENTER
STATUS
SLAB INT
SUPPLY
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FLUP
OFF
FLDN
ON
20°F
95°F
75°F
10°F
25°F
120°F
From
Boiler
To
Boiler
System
Return
System
Supply
Operation of the Primary
The primary circuit is composed of a dynamic balancing valve, an automac air separator and a boiler pump. The water
coming from the boiler pass through the air separator who connuously removes the air contained in the water. The
circulaon of fully de-aerated water enables the panel to operate under opmum condions, free from noise, corrosion,
localized or mechanical damage. The water is pumped into the primary circuit, through the boiler pump and at the same
me the balancing valve creates a consistent output pressure to the system.
The mixing part of the panel has a brazed heat exchanger and a mixing pump. The heat exchanger allows heat from the
primary circuit (water) to pass to the secondary circuit (glycol) without the two uids having to mix together. The mixing
pump injects a mix of warm water (glycol) from the return of the secondary circuit with hot water (glycol) from the heat
exchanger.
The secondary circuit is composed of a system pump and air separator. The system pump will recirculate the glycol
through the pipes embedded in the slab and the air separator will connuously remove the water from the circuit.

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Tamas Hydronic Panels
Snow Melt Series
Technical Data
Max Stac Working Pressure 290 psi (20 Bar)
Temperature Range -4°F to 250°F (-20°C to 120°C)
Connecon Female NPT and Female Solder
Pressure Tappings P/T Plugs
Allowable Fluid 100% water, max 50% glycol mixture
Seng Flow Coefficient Values(Cv value=GPM@1psi ∆P)
Number of Turns
Size 1 2 3 4 5 6 7 8 9 10
Cv
Values
1” 0.56 0.89 1.19 1.74 2.67 4.18 5.80 7.54 9.16 10.20
2” 2.32 4.18 6.03 8.82 13.80 19.4 24.60 29.00 33.20 36.50
Based upon the ow or dierential pressures required within the system, the ow can be determined by using the equation:
Q = Cv .
Δp
Q
= Flow
Cv
= Flow coecient
Δp=Dierential pressure
For correction of uids other than water, the following equation applies provided the viscosity of the uid is the same for water, which is the
case for most glycol and brine solutions:
QM
δ
QR
QR
= Real ow
=
QM
= Measured ow
δ = Specic density of uid
Balancing Valve
Technical Data

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Tamas Hydronic Panels
Snow Melt Series
0
5
10
15
20
25
30
0 5 10 15 20 25 30 35
Flow (GPM)
Head (ft.)
HI
MED
LOW
Without Check Valve
With Check Valve
Performance
HI
MED
LOW
HI
MED
LOW
20
18
16
14
12
10
8
6
4
2
0
80
70
60
50
40
30
20
0
0 2 4 6 8 10 12
2 4 6
GPM
Ft
GPM
Was
8 10 12
Technical Data
UPS 26-99FC/BFC Superbrute
UPS 15-58 3 Speed Pump

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Tamas Hydronic Panels
Snow Melt Series
Technical Data
UPS 26-150 F
H
[ft]
0
5
10
15
20
25
30
35
40
45
Q [US gpm]0 5 10 15 20 25 30 35 40 45
eta
[%]
0
10
20
30
40
50
60
70
80
90
UPS 26-150 F, 60Hz
Pumped liquid = Water
Liquid temperature = 140 °F
Density = 61.35 lb/ft³
P1
[W]
0
50
100
150
200
250
300
350
6 1/2"
3 1/8"
3 7/8"
3 3/4"
5 7/8"
7 1/8"
Description Value
Technical:
Speed Number: 3
Max flow: 52 US gpm
Head max: 45.3 ft
Approvals on nameplate: ETL, CSA
UPS 26-150 Pump Specifications

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Tamas Hydronic Panels
Snow Melt Series
Panel Dimensions
Technical Data
24.291
35.957
9.134
13.459
27.425
33.035
13.515
NOTE: Dimensions are in inches. Includes Oponal Lockable Enclosure.

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Tamas Hydronic Panels
Snow Melt Series
Installation:
1. Slab Sensor Location
Installing the sensor at the correct locaon in the slab is crical
for a properly funconing snow/ice melng system. The sensor
should be located where snowfall is normal and not aected by
surrounding buildings. Also, the sensor must not be installed
where standing water could accumulate on its surface.
The sensor locaon should also be halfway between the two
heang pipes that are installed in the slab (see FIG. 1). There is a
thermistor built into the sensor that senses the slab temperature
at all mes. Keeping the sensor away from pipes in the slab
ensures the accurate operaon of your snow/ice melng system.
a) Mounting the Socket and cover plate
When mounng the socket and cover plate in the snowmelt slab
use rebar mounted in the soil below to level the socket and cover
plate so that the cover plate is level with the nished grade of the
snow melng surface (see FIG. 2).
When the socket and cover plate are level, use a screw to ghten
the socket onto the rebar (see FIG. 3).
Failure to mount the socket properly may result in incorrect or
faulty sensor readings.
i) Ramp Mounting
The socket and cover plate can also be mounted on a ramp. Make
sure to locate the socket and cover plate near the boom of the
ramp. This will allow for proper ice melng when the melted snow
ows down (see FIG. 4).
ii) Brass Plugs
On the socket there are 4 brass plugs. These plugs are designed to
make contact with the brass ring on the sensor so the sensor can
get proper slab temperatures. Take care not to press these plugs
in or out as they are properly set at the factory. Manipulaon of
the plugs may result in the sensor not ng properly in the socket
(see FIG. 5).
Take special care to clean the brass surfaces on the inside of
the socket, making sure to clean any concrete that may have
accumulated on them. Failure to do so may result in the sensor
not making proper contact and not reading the slab temperature
properly.
Snowment sensor location (FIG. 1)
Leveling the socket and cover plate (FIG. 2)
Tightening the socket onto the rebar (FIG. 3)
Top of Slab
Heating Pipe
Rebar
Underslab
Insulation
Compact
Base
Snow Sensor Installation

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Tamas Hydronic Panels
Snow Melt Series
Snow Sensor Installation
82 mm
140 mm
140 mm
140 mm
103 mm
100 mm
Side ViewTop View
Brass
Plug
Ramp Mounting (FIG. 4)
Brass Plug (FIG. 5)
DRILL
HERE
Drilling the socket (FIG. 6)
82 mm
140 mm
100 mm
Side View
b) Placing Concrete
A plasc cover is provided with the socket to prevent it from being
accidentally lled with concrete. The plasc cover is the same
thickness as the sensor ange.
This allows the nished surface of the concrete to be troweled ush
with the cover. The cover must be installed prior to placing the
concrete. Also insure that the mounng plate drainage hole remains
unplugged once the concrete has cured.
Install the socket directly on top of gravel in order to provide good
drainage. If that is not possible, please ensure that you drill a hole
through the boom of the socket for proper drainage of water for
the opcal snow sensor to funcon. If this is not done, it will void the
warranty of the snow sensor (see FIG. 6).
Never use the wire conduit as drainage. This can damage the
sensor wire resulng in damage to the control and/or sensor.
c) Installing the Sensor
Once the snow melng surface is nished you can install the snow/
ice sensor. Clean any excess debris from inside the socket. Fish the
snow/ice sensor wire through the pre-installed pipe. Make sure to
leave a lile bit of slack in the wire.
Once the snow/ice sensor is properly inserted into the socket put the
four screws back in place to secure it.
Take special care to align the screw holes from the snow/ice sensor
to those on the socket. Once the sensor is pressed into place prying
up the sensor to line up the holes will result in damage to the sensor
and, potenally, the socket.
2. Remote Sensor Location
The opcal nature of the snow/ice sensor allows for mounng
somewhere other than the slab (i.e. a roof or fence post). This is
possible, but take special care that it is not mounted in an area
where the surroundings cause an abnormal amount of snow fall.
Paving stones or equivalent should be installed with a remote sensor.
When remote mounng the sensor an external slab sensor
must be used in order for the control to be able to read the slab
temperature. The temperature sensor on the snow/ice sensor will no
longer be used.

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Tamas Hydronic Panels
Snow Melt Series
Wiring
Wiring Diagram
All electrical wiring to the panel (including grounding) must conform to local electrical codes and/or Naonal Electrical
Code, ANS/NFPA No. 70-latest edion, or the Canadian Electrical Code, C22.1- Part 1.
Snow Melt Sensor
Take special care that the sensor wire is not run with any high voltage wiring as this may result in faulty readings. The
sensor is supplied with 100 feet of 22 AWG shield cable. If the sensor is more than 100 feet from the control extend the
wire from the end of the sensor wire. Do not shorten the original sensor wire then extend its length over 100 feet. When
extending the cable (to a maximum of 200 feet) use 18 AWG shielded cable. If possible two pair shields 18 AWG for best
results. You must also extend the shield wire and aach it to the same point as the black wire on the terminal block.
Do not cut the wire. All 100 . should always be le intact as the wire has an ohm rang. If you cut the wire the sensor
will be hoer than normal and void the warranty.
Outdoor Sensor
The outdoor sensor should be installed in the north face locaon and has to be connected to the HBX snow melt control
SNO-0550
Boiler
Boiler output to connect to the TT contact in the boiler
Power
Connect a 120 VAC/15 Amp supplies to the “AC IN” tagged leads in the wiring box.
L
N
120 V AC
Boiler
Outdoor Sensor
Snowmelt Sensor
Injection
Pump
Boiler
Pump
System
Pump
Heat Demand
System
Sensor
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
3
RL
2221
3
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER HERE
DO NOT
CONNECT
POWER HERE
Return
Sensor
8
4
1
5
9
12
14
13
TAM-R2-120V AC

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Tamas Hydronic Panels
Snow Melt Series
Maintenance
Have your panel checked and serviced by a licensed contractor at least once a year, preferably before the heang season
begins.
Complete the following checklist:
• Check the level of the system anfreeze soluon required for the snow melt system
• Check controls of the system to ensure proper and safe operaon (see instrucons below- HBX Manual page 12)
Maintenance
Testing
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) °C OR °F °F
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
ON
OFF
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) °C OR °F °F
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
ON
OFF
TESTING SETUP
Control Informaon
This seng will display processing informaon about the control.
Funcon Test
This seng will allow the user to pre-test the control during setup. It will set the outdoor temperature
to 10 °F and the system temperature to 70 °F so the system will test in warmer months.
Relay Test
These sengs will test each relay in the control in order to ensure correct operaon. The user is able
to test each relay individually. In order to test, select the desired relay by pressing ENTER. The relay
can be toggled on and o by pressing the ▼or ▲ buons.
Tesng Setup
This seng is used to test and view funconality of the control.

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Tamas Hydronic Panels
Snow Melt Series
Modular Expansion Panels
Tamas Hydronics Modular Panels
The Tamas Modular Panel line contains a series of
expandable hydronic panels suited for a variety of
applicaons and building sizes.
The comprehensive system provides a versale method
of distribung heat to a multude of applicaons. Indoor/
outdoor reset controls are ulized to improve system
eciency and management. Specic panels allow for system
expansion, mulple boiler management , injecon mixing
and domesc hot water.
Available panels: Boiler, Staging, Expansion, Low
Temperature Injecon (Pump, Valve, TMV)

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Tamas Hydronic Panels
Snow Melt Series
Limited Warranty
Limited Warranty
Tamas Hydronic Systems Inc. warrants each of its products to be free from defects in workmanship and materials under normal use and service for a
period of 24 months from date of purchase from a Tamas Hydronic Systems inc. authorized Dealer.
If the product proves to be defecve within the applicable warranty period, Tamas Hydronic Systems inc. on its sole discreon will repair or
replace said product. Replacement product may be new or refurbished of equivalent or beer specicaons, relave to the defecve product.
Replacement product need not be of idencal design or model. Any repair or replacement product pursuant to this warranty shall be warranted for
not less than 90 days from date of such repair, irrespecve of any earlier expiraon of original warranty period. When Tamas Hydronic Systems Inc.
Provides replacement, the defecve product becomes the property of Tamas Hydronic Systems Inc.
Warranty Service, within the applicable warranty period, may be obtained by contacng your nearest Tamas Hydronics Systems inc. oce via the
original Authorized Agent and requesng a Return Material Authorizaon Number (RMA #). Proof of purchase in the form a dated invoice/receipt
must be provided to expedite the issuance of a Factory RMA.
Aer an RMA number has been issued, the defecve product must be packaged securely in the original or other suitable shipping package to ensure
that it will not be damaged in transit. The RMA number must be visible on the outside of the package and a copy included inside the package. The
package must be mailed or otherwise shipped back to Tamas Hydronic Systems Inc. with all costs of mailing/shipping/insurance prepaid by the
warranty claimant.
Any package/s returned to Tamas Hydronic Systems Inc. without an approved and visible RMA number will be rejected and shipped back to
purchaser at purchaser’s expense. Tamas Hydronic Systems Inc. Reserves the right, if deemed necessary, to charge a reasonable levy for costs
incurred, addional to mailing or shipping costs.
Limitation of Warranties.
If the Tamas Hydronic Systems Inc. product does not operate as warranted above the purchasers sole remedy shall be, at Tamas Hydronic Systems
Inc.’ s opon, repair or replacement. The foregoing warranes and remedies are exclusive and in lieu of all other warranes, expressed or implied,
either in fact or by operaon of law, statutory or otherwise, including warranes of merchantability and tness for a parcular purpose/applicaon.
Tamas Hydronic Systems Inc. neither assumes nor authorizes any other person to assume for it any other liability in connecon with the sale,
installaon maintenance or use of Tamas Hydronic Systems Inc. products.
Tamas Hydronic Systems Inc. shall not be liable under this warranty; if its tesng and examinaon discloses that the alleged defect in the product
does not exist or was caused by the purchasers or third persons misuse, neglect, improper installaon or tesng, unauthorized aempts to repair or
any other cause beyond the range of intended use, or by accident, re, lightning or other hazard.
Limitation of Liability.
In no event will Tamas Hydronic Systems Inc. be liable for any damages, including loss of data, loss of prots, costs of cover or other incidental,
consequenal or indirect damages arising out of the installaon, maintenance, commissioning, performance, failure or interrupon of a Tamas
Hydronic Systems Inc. product, however caused and on any theory of liability. This limitaon will apply even if Tamas Hydronic Systems Inc. has
been advised of the possibility of such damage.
Local Law.
This limited warranty statement gives the purchaser specic legal rights. The purchaser may also have other rights which vary from state to state in
the United States, from Province to Province in Canada and from Country to Country elsewhere in the world.
To the extent this Limited Warranty Statement is inconsistent with local law, this statement shall be deemed modied to be consistent with such
local law. Under such local law, certain disclaimers and limitaons of this statement may not apply to the purchaser. For example, some states in
the United States, as well as some governments outside the United States (including Canadian Provinces), may:
Preclude the disclaimers and limitaons in this statement from liming the statutory rights of a consumer (e.g. United Kingdom);
Otherwise restrict the ability of a manufacturer to enforce such disclaimers or limitaons; or
Grant the purchaser addional warranty rights which the manufacturer cannot disclaim, or not allow limitaons on the duraon of implied
warranes.
Warranty

Custom, Reliable Hydronic Systems
Tamas Hydronic Systems Inc. Phone: [phone]
4516 112 Avenue SE Fax: [phone]
Calgary, Alberta T2C 2K2 [e-mail]
/TamasHydronicSystems
/TamasHydronic
/company/tamas-hydronic-systems
4516 112 Ave S.E. Calgary, Alberta • Tel: [phone] • Fax: [phone]
www.tamashydronic.com