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This appliance is for use with natural or propane gas. Read these
instructions thoroughly before commencing installation.
1.0 Introduction
1.1 Basic Information
1.2 Warranty
2.1.1 TA Specifications
2.1.2 TB and TE Specifications
2.3.1 Dimensions - TA Models
2.3.2 Dimensions - TB Models
2.3.3 Dimensions - TE Models
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance can
cause injury or property damage. All work
must be carried out by competent persons, i.e.
a registered CORGI installer.
PLEASE READ THESE INSTRUCTIONS
THOROUGHLY BEFORE COMMENCING
WORK.
1.0 INTRODUCTION
1.1 Basic Information
The instructions in this manual apply to Model T Series warm air
heaters. Model TA heaters have an axial fan for air delivery. Models
TB and TE have a centrifugal blower for air delivery and are in-
tended for installation with or without ductwork. Model TE heaters
include a blower cabinet. The T Series heaters are designed for ei-
ther overhead suspension or mounting on a non-combustible sur-
face and are suitable for indoor installation only.
A permanent electricity supply of 230 volts, 50 Hz, single phase is
required for all TA Models. Models TB and TE may use either single
phase or three phase.
Models T Series heaters are approved for:
Type B
- Gravity Vent, Open Flue
11
Category II
- use with G20 natural gas or G31 propane gas
2H3P
Each unit is fitted with a permanent pilot. A thermoelectric flame
supervision device monitors the pilot flame to prevent an explosive
condition occurring.
0063
Table of Contents
5.4 Fitting Outlet Duct - Models TB, TE
5.5 Fitting Return Air Duct - Model TE
6.6 Adjustments - Main Burner and Pilot
7.1 Requirements and Procedure
Installation, Commissioning, and Service
APPLIES TO:
8.0 Removal and Replacement of Parts
8.2 Pilot Burner Injector
8.4 Pilot Ignition System (Optional)
8.7 Fan Motor/Blade - TA
8.8 Multifunctional Control Valve
8.9 Limit and High Temperature
8.10 Fan Temperature Control
9.1 Site Wiring Connections
HAZARD INTENSITY LEVELS
1. DANGER: Failure to comply will result in severe
personal injury or death and/or property damage.
2. WARNING: Failure to comply could result in severe
personal injury or death and/or property damage.
3. CAUTION: Failure to comply could result in minor
personal injury and/or property damage.
WARNING: The electrical isolator should only
be used in an emergency and should not be
used for closing down the main burner, as it
switches off the fan prematurely and may
damage the heat exchanger, invalidating the
warranty.
When the required room temperature is reached, the main burner
will shut down leaving the fan running to cool down the heat ex-
changer. When cool enough, the fan thermostat will turn off the fan.
1.2 Warranty
Warranty is void if ...
a. Heater is installed in atmospheres containing flammable
vapours or atmospheres containing chlorinated or halogenated
hydrocarbons or atmospheres containing any silicone, alumi-
num oxide, etc. that adheres to spark ignition flame sensing
probes.
b. The installation is not in accordance with these instructions.
c. Axial fan-type unit heater, is connected to a duct system or
fitted with a non-factory authorised air distribution device.
d. Fitted in the printing industry where fine starch or sugar dusts
are used.
AMBI-RAD
Models TA, TB, TE
Gas-Fired Unit Heaters
Installation Form WA/010/0501
Limit Controls
Mfg No. 144662 Rev. 2, Page 1
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Related Manuals for Ambi-Rad Model T Series
Summary of Contents for Ambi-Rad Model T Series
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Page 1: Table Of Contents
1.1 Basic Information warranty. The instructions in this manual apply to Model T Series warm air When the required room temperature is reached, the main burner heaters. Model TA heaters have an axial fan for air delivery. Models... -
Page 2: Technical Data
2.0 TECHNICAL DATA 2.1 Specifications 2.1.1 TABLE 1 - Model TA S PECIFICATIONS Maxim um Gas Rat e Maxim um Gas Rat e # for G31 Heat Input Heat Out put for G20 Air Volum e $ Fuse Size Nat ural Gas P ropane Gas Running P ower... -
Page 3: Burner Injector Size And Pressure
2.2 Burner Injector Size and Pressure Natural Gas 2.2.1 TABLE 3 - G20 (Natural) GAS INJECTOR S IZE, BURNER PRES S URE, AND INLET PRES S URE M inimum M aximum Injector Gas Rate Injector Injector Burner Pressure Inlet Inlet Size Per Burner Size... -
Page 4: Dimensions
2.3 DIMENSIONS 2.3.1 Dimensions of Standard Model with Axial-Fan for Air Delivery Figure 2 NOTE: Sizes 100- 225 have a single axial fan. Sizes 250-400 have dual fans. TABLE 5 M odel 1048 1048 1187 1059 1048 1327 1199 1187 1327 1199 1187... - Page 5 2.3.2 Dimensions of Standard Model with Centrifugal Blower (less Cabinet) for Air Delivery Figure 3 TABLE 6 M odel 1133 1133 1133 1226 1226 1226 1226 1048 1133 1048 1133 1187 1226 1016 1054 1048 1327 1226 1156 1194 1187 1327 1226 1156...
- Page 6 2.3 DIMENSIONS (cont'd) 2.3.3 Dimensions of Standard Model with a Blower Cabinet Figure 4 TABLE 7 Model 1048 1048 1187 1016 1054 1048 1080 1327 1156 1194 1187 1219 1327 1156 1194 1187 1219 Form WA/010, Page 6...
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Page 7: General Requirements
3.0 GENERAL REQUIREMENTS 3.1 Related Documents Suspended heaters are most effective when located as close to the working zone as possible. However, care should be It is important that all gas appliances are installed by competent persons, exercised to avoid directing the discharge air directly on the i.e. -
Page 8: Gas Supply
Air De live ry factory. If the heater has incurred any damage in shipment, Equipme nt file a claim with AMBI-RAD within 48 hours. With Axial Fan Check the data plate for the gas specifications and electri- cal characteristics of the heater to be sure that they are com-... -
Page 9: Fitting The Flue
4.2 Fitting the Heater (cont'd) 4.2.1 Suspending the Figure 5 - Suspension Heater Dimensions Heaters are equipped with four suspen- sion points to receive an M10 eyebolt or threaded rod. See dimensions in Fig- ure 5. Blower models must be suspended with rigid support material. -
Page 10: Electrical Connections
CAUTION: The cause for activating heaters. An AMBI-RAD SU4 slave panel allows up to four heaters the lockout control should be identified and corrected before reset- to be controlled from a single panel. -
Page 11: Commissioning And Testing
6.0 COMMISSIONING AND TESTING The commissioning and testing should only be carried out by a competent person. This section should be read completely and fully under- stood. A commissioning service is available from AMBI-RAD. 6.1 Electrical Check WARNING: If for any reason the pilot light After completion of the installation and before switching on the elec- goes out, allow three minutes before relighting. - Page 12 6.0 COMMISSIONING AND TESTING (cont'd) 6.6.1 Burner Gas Adjustment (cont'd) Figure 7 - Multifunctional Control Valves Control Knob - Pressure (NOTE: When measuring gas pressure, do not depress while Regulator remove screw. Loosen enough to allow gas lighting pilot Cover Screw pressure to register.
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Page 13: Air Distribution System
8. Check the motor amps with an amp meter. The maximum motor heater must be serviced at least annually. A complete after sales ser- amp rating on the motor nameplate must not be exceeded. vice is available from AMBI-RAD. When service is complete, carry out commissioning procedure, Sec- tion 6.0-6.8. -
Page 14: Servicing Instructions
7.0 SERVICING INSTRUCTIONS WARNING: Only competent and qualified engineers should carry out servicing and fault finding on this equipment. Complete after-sale service is available from AMBI-RAD. Before maintenance is carried out, ensure that both gas and electrical supplies are turned off and the appliance is cold. - Page 15 WARNING: To comply with legislation, only certificated spares may be fitted to heaters supplied after 1/1/96. A full spares service is provided by AMBI-RAD. Only a competent and qualified engineer should carry out servicing on this equipment. Before maintenance is carried out, ensure that both gas and electrical supplies are turned off and the appliance is cold.
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Page 16: Main Burner
8.0 REMOVAL AND REPLACEMENT OF PARTS (cont'd) 8.3 Pilot Burner Assembly (cont'd) 8.7 Replacement of Fan Motor and/or Blade Follow these instructions for removal and replacement of fan motor Figure 12 - Relationship of Spark Pilot Assembly and and/or fan blade. Main Burner 1. - Page 17 Figure 16 - Non-Control Side of the Heater with Figure 15 - The "Lower Cabinet Panel Removed showing the Limit Control Temperature" Limit Capillary Tubing Control Reset Switch is When Removing Tubing: on the Control Side of the Heater. This limit On this side, pull the "copper coloured"...
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Page 18: Circuit Diagrams
9.0 CIRCUIT DIAGRAMS 9.1 Site Wiring 9.1.1 Site Wiring for Heater with Standard Permanent Pilot and Single Stage Control 9.1.2 Site Wiring for Heater with Optional Spark Ignition and Standard Single Stage Control Form WA/010, Page 18... - Page 19 9.1.3 Site Wiring for a Heater with Optional Spark Ignition and Optional Two-Stage Control 9.1.4 Site Wiring for a Heater with Optional Spark Ignition and Optional Electronic Modulation Control Mfg No. 144662 Rev. 2, Page 19...
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Page 20: Model Ta
9.0 CIRCUIT DIAGRAMS (cont'd) 9.2 Circuit Diagram -- Standard Heater with an Axial Fan(s) for Air Delivery 9.2.1 Model TA with Permanent Pilot, Sizes 100-225 (W.D. #142213) Form WA/010, Page 20... - Page 21 9.2 Circuit Diagram -- Standard Heater with an Axial Fan(s) for Air Delivery (cont'd) 9.2.2 Model TA with Standard Permanent Pilot, Sizes 250-400 (W.D. #142210) Mfg No. 144662 Rev. 2, Page 21...
- Page 22 9.0 CIRCUIT DIAGRAMS (cont'd) 9.2 Circuit Diagram -- Standard Heater with an Axial Fan(s) for Air Delivery (cont'd) 9.2.3 Model TA with Optional Spark Ignition, Sizes 100-225 (W.D. #142211) Form WA/010, Page 22...
- Page 23 9.2 Circuit Diagram -- Standard Heater with an Axial Fan(s) for Air Delivery (cont'd) 9.2.4 Model TA with Optional Spark Ignition, Sizes 250-400 (W.D. #142212).1 Model TA, Sizes 100-175 (W.D. #141389) Mfg No. 144662 Rev. 2, Page 23...
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Page 24: Models Tb And Te
9.0 CIRCUIT DIAGRAMS (cont'd) 9.3 Circuit Diagram -- Standard Heater with a Centrifugal Blower (with or without a cabinet) for Air Delivery 9.3.1 Models TB and TE with Standard Permanent Pilot, Sizes 75-175 (W.D. #142214) Form WA/010, Page 24... - Page 25 9.3 Circuit Diagram -- Standard Heater with a Centrifugal Blower (with or without a cabinet) for Air Delivery 9.3.2 Models TB and TE with Standard Permanent Pilot, Sizes 200-400 (W.D. #142215) Mfg No. 144662 Rev. 2, Page 25...
- Page 26 9.0 CIRCUIT DIAGRAMS (cont'd) 9.3 Circuit Diagram -- Standard Heater with a Centrifugal Blower (with or without a cabinet) for Air Delivery 9.3.3 Models TB and TE with Optional Spark Ignition, Sizes 75-175 (W.D. #142216) Form WA/010, Page 26...
- Page 27 9.3 Circuit Diagram -- Standard Heater with a Centrifugal Blower (with or without a cabinet) for Air Delivery 9.3.4 Models TB and TE with Optional Spark Ignition, Sizes 200-400 (W.D. #142217) Mfg No. 144662 Rev. 2, Page 27...
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Page 28: Fault Finding Charts
10.0 FAULT FINDING CHARTS 10.1 Main Fault Finding Chart WARNING: All fault finding Applies to Model TA, TB or TE should only be carried out by a with a Standard Permanent competent service engineer. Pilot Is the thermostat above room temperature and if used, is the time clock "ON"? Set the thermostat... - Page 29 10.2 .1 Permanent Pilot Does not Remain Alight Is the gas Correct the supply pressure 20 gas supply mbar? pressure. Adjust pilot flame. Refer to Refer to Figure 8. 6.6.2 and/or check pilot Does the pilot flame injector for dirt. Clean with adequately impinge on the solvent and compressed thermocouple?
- Page 30 10.0 FAULT FINDING CHARTS (cont'd) Is polarity of mains correct? 10.2.2 Heater with Optional Spark Ignition -- Does the Ignition inlet gas pressure Correct agree with the data polarity. Controller badge? Repeatedly Locks Out Correct the gas Wait 15 seconds supply and press reset pressure.
- Page 31 10.3 Limit Control Fault Finding Chart (Limit Control Trips) NOTE: Interruption of the main electrical sup- ply to the heater when the heater is in opera- tion may cause the limit control to trip. Check that the supply to the heater is not being inter- rupted incorrectly by (a) Incorrect wiring of the time clock;...
- Page 32 10.0 FAULT FINDING CHARTS (cont'd) 10.4 Fan/Blower Fault Finding Charts Section I (Fan/Blower Fails to Operate.) Adjust thermostat temperature setting above ambient to energise fan(s) and gas solenoid valve. Does the fan(s) operate? Is there 220 - Place the system 250 volts at Terminals in normal N and 3?
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Page 33: Exploded Diagrams
11.0 EXPLODED DIAGRAMS 11.1 Standard Heater Cabinet Parts -- All Models Ite m D e scription No . Bo t t o m P an Alum in ized 1 5 2 4 4 1 5 2 4 4 1 5 2 4 8 1 4 6 1 8 1 4 6 1 8 1 4 6 2 4... - Page 34 11.0 EXPLODED DIAGRAMS (cont'd) 11.2 Drafthood/Inner Cabinet Parts -- All Models Item Description Draft Hood Left Side 17483 17483 17483 17483 17483 17483 17483 17483 17483 17483 17483 17483 17484 17484 17484 17484 17484 17484 17484 17484 17484 17484 17484 17484 Draft Hood Right Side 85778 85778 85782 85786 85786 85790 85790 85793 85793 85796 85799 85799 Draft Hood Rear Baffle...
- Page 35 11.3 Heat Exchanger and Burner Rack -- All Models Item Description Heat Aluminized 145496 145496 145497 145498 145498 145499 145499 145500 145500 145501 145502 145502 Exchanger 321 Stainless 145513 145513 145514 145515 145515 145516 145516 145517 145517 145518 145519 145519 Assembly 409 Stainless 145506 145506 145507 145508 145508 145509 145509 145510 145510 145511 145512 145512...
- Page 36 11.0 EXPLODED DIAGRAMS (cont'd) 11.4 Model TA -- Standard Heater Cabinet Back and Fan Components Sizes 125 - 225 Sizes 250-400 Size 100 Item Description 1 & 2 Fan Back Sides 125136 Fan Back 125137 Fan Guard Assembly including mot or 114681 mouunt ing plat e 5 &...
- Page 37 11.5 Models TB and TE - Standard Heater Cabinet Back and Blower Components Blower Mounting Assembly Motor Mounting for Dual Blowers, Sizes 250- Assembly for Motors 1HP and Larger Blower Mounting Adapters for Sizes 75 and 100 only Blower Mounting Assembly for Single Blower, Sizes 75 - 225...
- Page 38 11.0 EXPLODED DIAGRAMS (cont'd) 11.6 Model TE - Standard Blower Cabinet Parts Item Description Top and Bottom 11522 11522 11522 11529 11529 11197 11197 11564 11564 11574 11583 11583 Assembly Door Panel 51041 51041 51041 51041 51041 51042 51042 51042 51042 51042 51042...
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Page 39: Short List Of Parts
11.7 Model TE - Filter Arrangements Sizes 75-175 Sizes 200-350 Sizes 355 & 400 Model Dimensions (mm) Filters Metal Fillers Size 508 x 508 508 x 508 508 x 508 508 x 508 508 x 508 508 x 508 508 x 635 508 x 635 508 x 635 508 x 635 406 x 635 406 x 508 406 x 635 406 x 508 406 x 635 406 x 508 406 x 635 406 x 508... - Page 40 AMBI-RAD AMBI-RAD AMBI-RAD AMBI-RAD AMBI-RAD ® Energy Efficient Heating Systems Ambi-Rad Limited, Fens Pool Avenue, Wallows Industrial Estate, Brierley Hill, West Midlands DY5 1QA Telephone: 01384 489 700 Fax: 01384 489 707 ©2001 Thomas & Betts Corporation, All rights reserved.
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