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Table of Contents
- 1 Table of Contents
- 2 General
- 3 Technical Data
- 4 Installing
- 5 Air Supply Requirements
- 6 Flue System
- 7 Gas Connection
- 8 Electrical Connection
- 9 Commissioning
- 10 Servicing
- 11 Spare Parts List
- 12 Short Parts Listing
- 13 Gas Conversion
- 14 Fault Finding
- 15 Health and Safety Information
- 16 User Instructions
- Download this manual
GAS FIRED AIR HEATERS TYPE UCA
May be used with an "Euroventer" Flue Gas Fan as:
These Air Heaters are not designed for use with ducting for circulation air distribution
Thermoelectric or Hot Surface Ignition burner controls
Please read this document carefully before commencing the installation and leave it with the
user or attached to the appliance or gas service meter after installation.
AmbiRad Limited, Fens Pool Avenue, Brierley Hill, West Midlands DY5 1QA (United Kingdom)
Tel : 01384 489700
Axial Fanned Forced Convection Appliances with
Thermal Electric Burner Control for use as:
Type B11 Open flued Appliances
Type B14 Appliances
This document applies to UCA appliances with:
These appliances meet the following EC Directives:
Dir. CE 90/396/EEC GAD
Dir. CE 89/336/EEC EMC
Dir. CE 89/392/EEC MD
Dir. CE 73/ 23/EEC
LVD
0501UCAOAMEN
fax : 01384 489707
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Table of Contents
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Summary of Contents for Ambirad UCA 25
- Page 1 Please read this document carefully before commencing the installation and leave it with the user or attached to the appliance or gas service meter after installation. AmbiRad Limited, Fens Pool Avenue, Brierley Hill, West Midlands DY5 1QA (United Kingdom) Tel : 01384 489700...
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Page 2: Table Of Contents
0501UCA INDEX Page General..............................2 Technical data ............................3 Installing ..............................5 Air supply requirements..........................6 Flue system ............................7 Gas connection............................9 Electrical connection..........................9 Commissioning .............................10 Servicing...............................13 Short parts listing..........................18 Gas conversion.............................19 Fault finding ............................20 Health and Safety information ......................21 User instructions...........................22 N.B. If optional equipment is supplied with this appliance please refer to the additional instructions supplied with the option. 1. -
Page 3: Technical Data
0501UCA 2. TECHNICAL DATA Table 1 : Appliance data Type UCA... Gas category 'Cat.' 2H3+ Air supply and flue type B11 or B14 Heat input (Hs) 'Qn' 30,28 34.94 43,26 52,00 64,67 88,96 118,7 Heat input (Hi) 'Qn' 27,30 31,50 39,00 46,90 58,30... - Page 4 0501UCA Figure 1 : Dimensions Left hand side (controls side) Front view Top plan Rear view Table 2. : Dimensions re fig. 1 MODEL UCA... A1 Width overall 1080 1360 Flue internal φ G1 Width of suspension points centres 1199 W Centre of flue to back panel of appliance Z Length overall 4/25...
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Page 5: Installing
0501UCA 3. INSTALLING The UCA air heater may be installed in a may suffer from damage by, e.g. fork lift trucks. suspended manner using the suspension points provided through the top of the appliance. Adequate clearance from combustible materials Suspension brackets which may be used for must be maintained between the appliance and base mounting are available as optional items. -
Page 6: Air Supply Requirements
0501UCA Table 3 : Dimensions re fig. 2 1100 1400 L minimum L1 Opposite side 4. AIR SUPPLY for COMBUSTION & VENTILATION It is essential that sufficient fresh air is provided 4.4 Table 5. Air Supply Requirement for for combustion and room ventilation. Most Combustion &... -
Page 7: Flue System
90 angle an inverted Y piece The products of combustion may reach a must be used. temperature of 230°C. AmbiRad recommend It is not recommended to install the flue directly that appliances are connected to individual flues sized accordance... - Page 8 0501UCA A vertical rise from the appliance to the terminal The use of twin wall flue should be considered if point of 2.0 X the horizontal length must be condensation in the flue system is a possibility. maintained as indicated in figure 5. Difficult flues may include an "EUROVENTER"...
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Page 9: Gas Connection
0501UCA 6. GAS CONNECTION Connection to a gas service may only be carried Figure 7 : Gas connection detail by suitably qualified persons. The gas installation must comply with the rules in force using materials appropriate service installations. Check that the gas category is in accordance with the data described on the air heater. -
Page 10: Commissioning
→ In addition to the above requirements checks Figure 8 : Gas control type TYPE UCA 25 to ensure that the fan/s rotate freely and in the correct direction and the fan guards are fitted correctly and securely. - Page 11 0501UCA → LIGHTING THERMOELECTRIC Figure 9 : Gas control UCA 55 Models: UCA 55 → 95 Ensure that the air discharge louvres are set to an open position; Switch OFF the electricity supply to the air heater; Turn ON the gas supply to the air heater; Set room thermostat to OFF or its lowest setting;...
- Page 12 0501UCA 8.8.5 If the burner has not lit within 5 seconds, the In the event of overheating for any reason, electronic flame relay will switch off and thermally activated, fail safe overheat controls lockout will occur. This will cause the signal operate to protect the air heater.
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Page 13: Servicing
0501UCA 9. SERVICING INSTRUCTIONS Heater casing : CAUTION: Check for damage that could be detrimental to Inadvertent substitution or replacement of the correct fitting of panels and affect the components similar to those specified or correct working or noise level. Check that all replacement in a manner contrary to the assembly screws are fastened, replace missing method herein described could constitute a... - Page 14 0501UCA Figure 11. Figure 12. BURNER ASSEMBLY REMOVAL DRAUGHT DIVERTER REMOVAL 1.Draught diverter securing screws left and right hand side. 9.11 Electrical: Burner tray removal : Check all visible wiring for damage, check Refer to figs. 11, 15 & 16 terminal security.
- Page 15 0501UCA Figure 13. Figure 14. THERMOELECTRIC IGNITION BURNER DETAILS HOT SURFACE IGNITER ASSEMBLY DETAILS 9.14 Figure 13 shows the approximate flame pattern 9.15 After any service work has been carried out of the ignition burner and its relationship to the re-commission the air heater following the steps flame proving thermocouple.
- Page 16 0501UCA Figure 15 : COMPONENT PARTS LOCATION THERMOELECTRIC BURNER CONTROLS Legend figure 14 Burner ribbon Electrical and Controls inlet Flue socket Burner manifold with gas jets Burner gas pressure test point Controls fuse Wiring terminals Thermocouple connection LC3 Multi-functional gas control Thermal overheat control LC3 Thermal overheat control LC3 sensor Limit control LC1 plus LC2 on models 75 &...
- Page 17 0501UCA Figure 16 : COMPONENT PARTS LOCATION HOT SURFACE IGNITION BURNER CONTROLS Legend figure 15 Burner manifold Flue socket Burner fail indicator Gas inlet connection Burner gas pressure test point Main wiring terminals Thermal fan control Controls fuse Thermal overheat control LC3 capillary Automatic electronic burner control Thermal over heat (limit) control LC1 &...
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Page 18: Short Parts Listing
0501UCA 10. SPARE PARTS LIST NOTE: Components specific to either Thermoelectric burner control or Hot Surface Ignition are indicated thus; TE = Thermoelectric burner controls HS = Hot Surface Ignition systems 10.1 GAS SECTION DESCRIPTION PART MFGS.REF. APPLICATION NUMBER 25 → 45 Gas valve 03 25260 SIT 820 Nova ½"... -
Page 19: Gas Conversion
0501UCA DESCRIPTION PART NUMBER MFGS. REF. APPLICATION Wiring harness. Hot surface connection 06 41531 HGC All HS Wiring harness. 2 stage burner control 06 41621 All HS Terminal rail 06 41635 Entrelec All HS 55 → 95 Gas valve connector plug 230V 03 24980 V1 Honeywell 10.3 AIR HANDLING SECTION... -
Page 20: Fault Finding
0501UCA 12. FAULT FINDING THERMOELECTRIC BURNER CONTROL MODELS HOT SURFACE IGNITION CONTROL MODELS 12.1 Ignition burner will not light : 12.5 Burner does not light: Read lighting instructions; Thermostat set too low; Check gas supply is turned on; Controls fuse has blown; Air in gas supply : check purging;... -
Page 21: Health And Safety Information
Characteristics: Non-corrosive, flammable with not constitute a poison hazard. no poisonous reference - CH poison Class 3 13.2 AmbiRad products contain no asbestos; Precautions: Avoid handling. This product can copper is not employed in gas carrying irritate and defat the skin. Prolonged contact components;... -
Page 22: User Instructions
Thermoelectric: Incorporate a permanent pilot AmbiRad suggests at least once every year. flame on a separate ignition burner which requires manual lighting as described below, 14.4... - Page 23 0501UCA manual intervention to reset the electronic NOTE: burner control either on the appliance or a - If ignition burner has not lit wait five minutes remote control device is necessary on those and repeat the lighting procedure fitted with hot surface ignition systems. When - Having established the ignition burner set the main burner fires and warms the heat control to "Flame"...
- Page 24 0501UCA To turn off the air heater for short periods a) check the automatic burner control does not Adjust room thermostat to lowest setting or require resetting. An indicator light will glow switch to off other external controls; To on the front panel of the appliance or on a turn off for prolonged periods, carry remote control where applicable.
- Page 25 0501UCA 14.9 Air circulation: 14.12 Maintenance & servicing: Some unit air heaters have fans connected to Maintenance and service must only be carried a remote override switch. This enables cool out by competent persons. Periods between air to be used for circulation purposes when service are dependent upon the local the air heater is not used for heating purposes environment where the air heater is installed.
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