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