Product Overview

ManualsBrandsReznor ManualsHeating SuppliesWS-96/120 Suspended Hydronic Unit Heater - 120,000 BTU

INDOOR, SUSPENDED,

STEAM OR HOT WATER

HYDRONIC UNIT HEATER

FOR VERTICAL OR HORIZONTAL

CONFIGURATION

IMPORTANT: This guide is intended to provide speciﬁcations and technical information only.

This guide is NOT intended to be and instruction manual. When installing heating and ventilating equip-

ment, you must check and conform to all local and national building codes. Improper installation of

heating and ventilating equipment could be dangerous. Consult manufacturer’s installation manual for

instruction and important warnings.

In keeping with our policy of continuous product improvement, we reserve the right to alter, at any time,

the design, construction, dimensions, weights, etc., of equipment information shown here.

Contents

MODEL WS ........................................................................................................... 2

STANDARD FEATURES ........................................................................ 2

TECHNICAL DATA ................................................................................. 3

DIMENSIONS......................................................................................... 3

ENGINEERING DATA ........................................................................................... 4

HOT WATER CAPACITIES, CALCULATIONS AND CORRECTION

FACTORS ...................................................................................................... 4

HEAT EXCHANGER RESISTANCE CHART ............................................... 6

TERMS, ABBREVIATIONS AND FORMULAS .............................................. 7

STEAM CAPACITIES, CALCULATIONS AND CORRECTION FACTORS ... 8

EFFECTIVE HEAT COVER AND AIR THROW .................................................. 10

CEILING INSTALLATION .................................................................................... 12

OPTIONAL AIR FLOW INDUCTION OPTIMIZER .............................................. 13

GENERAL LAYOUT ............................................................................................ 15

LIMITED PRODUCT WARRANTY ...................................................................... 17

Summary of content (18 pages)

PAGE 1
INDOOR, SUSPENDED, STEAM OR HOT WATER HYDRONIC UNIT HEATER FOR VERTICAL OR HORIZONTAL CONFIGURATION Contents MODEL WS............................................................................................................ 2 STANDARD FEATURES......................................................................... 2 TECHNICAL DATA.................................................................................. 3 DIMENSIONS................................................................................
PAGE 2
MODEL WS Page ___________ of ______________ INDOOR, SUSPENDED, STEAM OR HOT WATER HYDRONIC UNIT HEATER FOR VERTICAL OR HORIZONTAL CONFIGURATION DESCRIPTION Reznor® Model WS Steam/Hot Water Suspended Heaters are design-engineered to be technically advanced and esthetically pleasing which makes it the hydronic heater for the 21st century. This smart new concept in commercial heating units will accommodate all architects who are looking for something new and different.
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Page ___________ of ______________ TECHNICAL DATA MBH Maximum Heating CapacityA Watts kcal/hr °F Maximum Leaving Air Temperature (L.A.T.
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Page ___________ of ______________ ENGINEERING DATA HOT WATER CAPACITIES, CALCULATIONS AND CORRECTION FACTORS The performances reflected in these tables are based on the following: Use the following two tables to determine 1. Heating Capacity (MBH) 2. Leaving Air Temperature (LAT) 3. Water Flow in Gallons per Minute (GPM) 4.
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Page ___________ of ______________ ENGINEERING DATA (cont’d) HOT WATER CAPACITIES, CALCULATIONS AND CORRECTION FACTORS The heating output of any particular installation is a function of many different factors. It is very seldom that any installation will exactly match the conditions described in the tables on the previous page. For those installations, correction factors must be used to determine heating output and other values.
PAGE 6
Page ___________ of ______________ ENGINEERING DATA (cont’d) HEAT EXCHANGER RESISTANCE CHART The following table indicates the Water Pressure Drop (WPD) in FT H2O for each model for a mean water temperature of 176°F (80°C) ●● Mean water temperature - °F, °C ●● Correction Factor - K °C 50 60 70 80 90 100 110 120 130 140 150 °F 122 140 158 176 194 212 230 248 266 284 302 K 1.15 1.10 1.05 1.00 0.95 0.89 0.83 0.78 0.72 0.67 0.
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Page ___________ of ______________ ENGINEERING DATA (cont’d) TERMS, ABBREVIATIONS AND FORMULAS Following is a list of terms, abbreviations and formulas to assist in specifying the correct size hydronic heating equipment for a specific application. All terms and abbreviations apply to both steam and hot water heating unless otherwise noted. ATR Air Temperature Rise - The difference between the Entering Air Temperature (EAT) and the Leaving Air Temperature (LAT) due to the amount of heat added.
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Page ___________ of ______________ ENGINEERING DATA (cont’d) STEAM CAPACITIES, CALCULATIONS AND CORRECTION FACTORS Use the following two tables to determine The performances reflected in these tables are based on the following: 1. Heating Capacity (MBH) ●● ●● 2. Leaving Air Temperature (LAT) 3. Condensate of water in lbs./hr. Steam pressure: 2 Pounds per Square Inch (psi) Entering Air Temperature (EAT): 60° (16°C) 4.
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Page ___________ of ______________ ENGINEERING DATA (cont’d) STEAM CAPACITIES, CALCULATIONS AND CORRECTION FACTORS The heating output of any particular installation is a function of many different factors. It is very seldom that any installation will exactly match the conditions described in the tables on the previous page. For those installations, correction factors must be used to determine heating output and other values.
PAGE 10
Page ___________ of ______________ EFFECTIVE HEAT COVER AND AIR THROW Horizontal Discharge Max Mounting Height H Size Fan Motor 18/24 23/33 44/62 60/85 78/110 96/120 140/175 190/238 300/350  Throw m ft H m ft Cover  m ft2 m2 Low Speed 10 3 16 5 10 3 344 32 High Speed 10 3 23 7 11 3.5 473 44 Low Speed 10 3 16 5 10 3 366 34 High Speed 10 3 25 7.5 11 3.5 516 48 Low Speed 10 3 18 5.5 11 3.5 387 36 High Speed 11 3.
PAGE 11
Page ___ of _____ RECOMMENDED INSTALLATION DETAILS FOR PIPING CONNECTIONS Hot Water Connections Vertical Discharge Units Horizontal Discharge Units Steam Connections Horizontal Discharge Units Vertical Discharge Units Form C-HU Page 11
PAGE 12
Page ___________ of ______________ CEILING INSTALLATION SUSPENSION PLATE FOR CEILING INSTALLATION All units are shipped with suspension plates for mounting.
PAGE 13
Page ___________ of ______________ OPTIONAL AIR FLOW INDUCTION OPTIMIZER Greatly increase the throw of horizontal discharge units. The Air Flow Induction Optimizer increases the throw for Reznor Models WS. This increased flow results in energy savings and better environmental control. This option increases the air speed thanks to the unique shape of the deflecting louvers which create layers of hot air at the unit outlet.
PAGE 14
Page ___________ of ______________ OPTIONAL AIR FLOW INDUCTION OPTIMIZER (cont’d) Without the Optional Air Flow Induction Optimizer air flow and throw are good. The leaving air temperature from the units has a decisive influence on hot air stratification and consequently on energy saving: for every 2°F (1°C) increase in temperature there is a 1.5% increase in energy consumption.
PAGE 15
GENERAL LAYOUT Page ___________ of ______________ INSTALLATION SUGGESTIONS Suggested layout for horizontal discharge suspended units with no options. Effective throw of the unit can be enhanced with vertical louvers or optional Air Flow Induction Optimizer. Suggested layout for vertical discharge suspended units with no options. Effective cover of the unit can be enhanced with vertical louvers.
PAGE 16
Form C-HU - Page 16 NOTES: RZ-NA-C-HU Page 16 Page ___________ of ______________
PAGE 17
Page ___ of _____ LIMITED PRODUCT WARRANTY Reznor, LLC warrants to the original owner-user that this Reznor product will be free from defects in material or workmanship. This warranty is limited to twelve (12) months from the date of original installation, whether or not actual use begins on that date, or eighteen (18) months from date of shipment by Reznor, LLC, whichever occurs first. EXTENDED WARRANTY (Limited to the following Models, Components, and Applications.
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Reznor® is your global source for heating, ventilating and air conditioning equipment. For more information on Reznor HVAC Equipment, contact your local Reznor Representative by calling 800-695-1901. Or, find us on the internet at www.RezSpec.com Reznor is registered in at least the United States. All other marks are the property of their respective organizations. © 2014 Reznor, LLC. All rights reserved. Printed in U.S.A.