Low Flow Heaters Low Flow... · 2016-04-27 · Trench Front View Rear View SLF-48 Low Flow Chassis...

MANUFACTURERS

OF HYDRONIC

HEATING

PRODUCTS

Low Flow Heaters

www.sigmaproducts.com Tel: (905) 670-3200 Fax: (905) 670-3822

1

SLF-MODULAR FAN ONLY UNITS-01..........................................2

SLF-48 CHASSIS-01 ......................................................................3

SLF-96 CHASSIS-01 ......................................................................4

SLF-48E (FULLY EXPOSED).........................................................5

SLF-96E (FULLY EXPOSED).........................................................6

SLF-72R (RECESSED) ..................................................................8

SLF-48 TRENCH-01 (OPPOSITE END CONNECTIONS) .............9

SLF-48 TRENCH-02 (SAME END CONNECTIONS) ...................10

SLF-48C (CONCEALED) .............................................................11

SLF-48TFC (CONCEALED, TOP OUTLET, FRONT INLET).......12

SPECIFICATIONS........................................................................13

PERFORMANCE..........................................................................14

Low Flows

Table of Contents

www.sigmaproducts.com

Rev 3

19 716 "

4 716 "

37"

4 716 "

54 12 "

4 716 "

Single Fan Chassis

Double Fan Chassis

SIGMA SLF Low Flow, 'Fan Only' chassis can be installed anywhere additional airlfow is needed (behind wallfin, trenches,bulkheads etc. Each end has an 1/2" nominal (7/8" actual) electrical knockout that allows continuous wiring through units.5/16" Mounting holes are located on the back of the units.

Motors are 120V, 60Hz, .70A, class H insulation, UL (cUL) E71778.Cycling Thermal Protector, rating 120C.Each individual blower is rated at 150 cfm at 0" static pressure.

Triple Fan Chassis

Details of Fan Only Modular Low Flow Chassis

DO NOT SCALE DRAWING

SLF-Modular Fan Only Units-01SHEET 1 OF 1

12/16/2009

12/16/2009

12/16/2009RL

RL

RL

SHT SCALE: 1:10

DWG. NO.A

SIZE

TITLE:Drawn by:

DIMENSIONS ARE IN INCHES UNLESSOTHERWISE SPECIFIEDTOLERANCES: FRACTIONAL 1/32" ANGULAR: 0.5° 2 PLACE DECIMAL: 0.01 3 PLACE DECIMAL: 0.005

This drawing is the property of SIGMAConvectors Enclosures Corp. and shallnot be reproducedin any form without

the written consent of SIGMA

Sigma Corporation

COMMENTS:

6185 Kestrel Road, Mississauga, Ont., Canada L5T 1Z2 Tel: (905) 670-3200 Fax: (905) 670-3822

Date:

Date:Checked by:

Approved:Date:

PROJECTIONTHIRD ANGLE

LayoutDescription:

7 38 "

4 38 "

42 116 "

45 34 "

Electrical Box(Can be mounted

on either side of unit)

Copper Coil 3/4" SweatConnections at both ends

(2) Tangential Fans

ISOMETRICVIEW

Concealed Low Flow - Chassis Only Unit

SLF-48 Low Flow Chassis with Opposite End Coil Connections


SLF-48 Chassis-01SHEET 1 OF 1

8/31/2009

8/31/2009

8/31/2009RL

RL

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:


AssemblyDescription:

4 38 "

7 38 "

82 316 "

85 1316 "

Copper Coil 3/4" SweatConnections at both ends

Electrical Box(Can be mounted

on either side of unit)(4) Tangential

Fans

ISOMETRICVIEW

Concealed Low Flow - Chassis Only Unit

Layout Assembly for Low Flow Chassis with Coil


SLF-96 Chassis-01SHEET 1 OF 1

9/8/2009

9/8/2009

9/8/2009RL

RL

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:



47 1516 "

Coil Connections are 3/4" sweat, 48 fpf Cu/Aland can be easily flipped on site to change handing.

- Opposite End Connections: SLF-48E-01- Same End Connections: SLF-48E-02

(2) Tangential Fans

8"

4 12 "Louvered

Outlet

LouveredInlet

Left Hand Access Doorto access factory installed

controls

Right Hand Access Doorto access field installedcontrols such as valves

Inlet

Inlet

SLF-48E Low FlowsWall / Floor Mounted Exposed

Low FLows

Possible Mounting Orientations

Inlet

Outlet

Outlet

Outlet

Layout of Exposed SLF-48 Low Flow


SLF-48ESHEET 1 OF 1

12/15/2009

12/15/2009

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COMMENTS:


Date:

Date:Checked by:

Approved:Date:



95 1516 "


- Opposite End Connections: SLF-48E-01- Same End Connections: SLF-48E-02

(4) Tangential Fans


controls


8"

4 12 "Louvered

Outlet

LouveredInlet

SLF-96E Low FlowsWall / Floor Mounted Exposed

Low FLows


Outlet

Outlet

Outlet

Inlet

Inlet

Inlet

Layout of Exposed SLF-96 Low Flow


SLF-96ESHEET 1 OF 1

12/15/2009

12/15/2009

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:



Coil Connectionsare 3/4" sweat, 48 fpf Cu/Aland can be easily flipped on siteto change handing.

- Opposite End Connections: SLF-72R-01- Same End Connections: SLF-72R-02

FrontView

(3) Tangential Fans

74" Cover Length

71 1516 " Cabinet Length

RearView


controls

Right Hand Access Doorto access field installedcontrols such as valves.

9 34 "

4 12 "

3 34 "34 "

11 34 "

SLF-72R Low FlowsRecessed Low FLows


Inlet

Inlet

InletOutlet

Outlet

Outlet

Details of Recessed SLF-72Low Flow


SLF-72R-01SHEET 1 OF 1

12/16/2009

12/16/2009

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:


LayoutDescription:

8"Minimum

45 34 "

44 38 "

37"

7 716 "

3/4" SweatConnection on

each end.

Control Box

58 "

1 38 "1"

3"

1" 5 1116 "

6 716 "

3"1"

(5) 5/16" MountingHoles

Rear View

4 38 " NON-CompressedHeight

1" thick open cell foamgasketing can be compressed

to approx. 1/2"

Front View

Trench

8"Minimum

SLF-48 Low Flow Chassis with Opposite End Coil Connections


SLF-48 Trench Mount Chassis Only-01SHEET 1 OF 1

12/9/2009

12/9/2009

12/9/2009RL

RL

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SHT SCALE: 1:8

WEIGHT: lbs.

DWG. NO.A

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:



8"Minimum

44 78 "

42"

37"

7"

Control Box

3/4" Sweat connections on same end.Coil can be easily flipped on siteto have connections at other end.

3"

1"

58 "

1 38 "

1"

1"

3"

5 1116 "

6 716 "(5) 5/16" MountingHoles

4 38 " NON-CompressedHeight

1" thick open cell foamgasketing can be compressed

to approx. 1/2"

Trench

Front View

Rear View

8"Minimum

SLF-48 Low Flow Chassis with Same End Coil Connections


SLF-48 Trench Mount Chassis Only-02SHEET 1 OF 1

12/9/2009

12/9/2009

12/9/2009RL

RL

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WEIGHT: lbs.

DWG. NO.A

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:



47 1516 "


- Opposite End Connections: SLF-48C-01- Same End Connections: SLF-48C-02

(2) Tangential Fans


controls


4 12 "

9 34 "

MeshInlet

MeshOutlet

SLF-48C Low FlowsConcealed Low FLows


Inlet

Inlet

Inlet

Inlet

Outlet

Outlet

Outlet

Outlet

Details of Concealed SLF-48Low Flow


SLF-48C-01SHEET 1 OF 1

12/16/2009

12/16/2009

12/16/2009RL

RL

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DWG. NO.A

SIZE

TITLE:Drawn by:




Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:


LayoutDescription:


controls


47 1516 "


- Opposite End Connections: SLF-48TFC-01- Same End Connections: SLF-48TFC-02

4 12 "

8"

Mesh Outlet

Mesh Inlet

SLF-48TFC Low FlowsConcealed Low FLows with

Top Outlet / Front Inlet


Inlet

Inlet

Inlet

Inlet

Outlet

Outlet

Outlet

Outlet

Details of Concealed SLF-48 Low Flow withFront Inlet / Top Outlet


SLF-48TFC-01SHEET 1 OF 1

12/16/2009

12/16/2009

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Sigma Corporation

COMMENTS:


Date:

Date:Checked by:

Approved:Date:


LayoutDescription:

Low Flow Cabinet Heater SPECIFICATION I. CABINET

Cabinet is manufactured from 18 Ga Zinc-Ally coated galvanealed steel that meets ASTM A653/A653 CS Type B with coating designation ZF75 with grey primer finish or baked paint finish with colour selected from standard Sigma colours, as required. II. FAN/MOTOR Assembly Motors are 115/1/60, shaded pole with built-in overload protection. Each fan assembly includes two aluminum tangential blowers per motor, directly connected to the fan motor. Fan assembly is statically and dynamically balanced for quiet operation. III. ELEMENT Element will be Copper tube/Aluminum fin construction. The aluminum fins are manufactured with a collar to ensure a mechanical bond once the copper tube is expanded into the fins. Alternate configurations and accessories are available. Contact factory for details

LOW FLOW CABINET HEATERS

Model CFM Delta T MBH GPM WPD MBH Cond lbs/Hr Fan Qty Watts RPM FLA Wht lbs

10 13.03 2.7 0.19

20 11.57 1.2 0.05

30 10.74 0.8 0.02

40 9.70 0.5 0.01

10 16.37 3.4 0.27

20 14.60 1.6 0.07

30 13.45 1 0.03

40 12.20 0.7 0.02

10 27.01 5.6 1.5

20 25.23 2.7 0.39

30 23.25 1.6 0.18

40 20.96 1.1 0.08

10 33.47 7 2.1

20 31.28 3.3 0.51

30 28.78 2 0.22

40 25.96 1.4 0.11

31.7 33

37.3 38.8

50

4 60 1550 2 90

SLF48

SLF96

2 60

175

250

350

500

15.9 16.6

200F EWT, 60F EAT Motor Data

1550 1

2 psi Steam, 60F EAT

18.9 19.7

Hot Water Correction FactorsLow Flow Unit Heaters

100 120 140 160 180 200 220 240 260 280 30030 0.518 0.666 0.814 0.963 1.12 1.268 1.408 1.55 1.702 1.85 1.99740 0.439 0.585 0.731 0.878 1.025 1.172 1.317 1.464 1.609 1.755 1.90850 0.361 0.506 0.651 0.796 0.941 1.085 1.231 1.375 1.518 1.663 1.82460 0.286 0.429 0.571 0.715 0.857 1 1.143 1.286 1.429 1.571 1.71770 0.212 0.353 0.494 0.636 0.777 0.918 1.06 1.201 1.342 1.483 1.6380 0.14 0.279 0.419 0.558 0.698 0.837 0.977 1.117 1.257 1.397 1.54590 0.069 0.207 0.345 0.483 0.621 0.759 0.897 1.035 1.173 1.311 1.462100 0 0.137 0.273 0.409 0.546 0.682 0.818 0.955 1.094 1.23 1.371

Entering AirTemperature F

Entering Water Temperature F

Force Flow Cab Heater

Steam Correction Factors

30 40 50 60 70 80 90

2 1.24 1.16 1.08 1 0.93 0.85 0.78

5 1.29 1.21 1.13 1.05 0.97 0.9 0.83

10 1.38 1.29 1.21 1.13 1.06 0.98 0.91

15 1.44 1.34 1.28 1.19 1.12 1.04 0.97

20 1.5 1.42 1.33 1.25 1.17 1.1 1.02

30 1.6 1.51 1.43 1.35 1.27 1.19 1.12

40 1.68 1.6 1.51 1.43 1.35 1.27 1.19

50 1.7 1.6 1.58 1.5 1.42 1.34 1.26

Note: Correction factors to be applied against the 2 psi capacity data at 60F EAT.

Entering Air Temperature

Steam Pressure

SLF Table of ContentsPg 01-SLF-Modular Fan Only Units-01Sheet1Drawing View1Drawing View2Drawing View3Drawing View4Drawing View5Drawing View6

Pg 02-SLF-48 Chassis-01Sheet1Drawing View3Drawing View4Drawing View5

Pg 03-SLF-96 Chassis-01Sheet1Drawing View1Drawing View3Drawing View4

Pg 04-SLF-48ESheet1Drawing View1Drawing View2Drawing View3Drawing View4Drawing View5Drawing View6

Pg 05-SLF-96ESheet1Drawing View7Drawing View8Drawing View9Drawing View10Drawing View11Drawing View12

Pg 06-SLF-72R-01Sheet1Drawing View1Drawing View2Drawing View3Drawing View4Drawing View5Drawing View6Drawing View7

Pg 07-SLF-48 Trench Mount Chassis Only-01Sheet1Drawing View1Drawing View2Drawing View3Drawing View4

Pg 08-SLF-48 Trench Mount Chassis Only-02Sheet1Drawing View5Drawing View6Drawing View7Drawing View8

Pg 09-SLF-48C-01Sheet1Drawing View1Drawing View2Drawing View3Drawing View4Drawing View5Drawing View6Drawing View7

Pg 10-SLF-48TFC-01Sheet1Drawing View1Drawing View2Drawing View3Drawing View4Drawing View5Drawing View6Drawing View7

Pg 11-Low Flow SPECIFICATION

Low Flow Heaters Low Flow... · 2016-04-27 · Trench Front View Rear View SLF-48 Low Flow Chassis...

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