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Gas-fired fan assisted flue unit heater
Please read this document carefully before commencing installation, commissioning and/or servicing.
Leave it with the user or attached to the appliance or gas service meter after installation.
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
All work must be carried out by appropriately qualified persons.
The manufacturer does not take any responsibility in the event of non-observance of the regulations concerning the
connection of the apparatus causing an evil operation possibly resulting in damage to the apparatus and/or environ-
ment in which the unit is installed.
Ambi-Rad Limited, Fens Pool Avenue, Brierley Hill, West Midlands DY5 1QA (United Kingdom)
UPA 30 - 90
INSTALLATION
COMMISSIONING
SERVICING
These appliances meet the following EC Directives:
DIR CE 90/396/EEG:GAD
DIR CE 89/336/EEG:EMC
DIR 73/23/EEG:LVD
DIR 89/392/EEG:MD
Tel : 01384 489700
WARNING:
Fax : 01384 489707
0710UPA-AMEN
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Summary of Contents for Ambirad UPA 30
- Page 1 0710UPA-AMEN UPA 30 - 90 Gas-fired fan assisted flue unit heater INSTALLATION COMMISSIONING SERVICING These appliances meet the following EC Directives: DIR CE 90/396/EEG:GAD DIR CE 89/336/EEG:EMC DIR 73/23/EEG:LVD DIR 89/392/EEG:MD Please read this document carefully before commencing installation, commissioning and/or servicing.
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Page 2: Table Of Contents
INDEX Warnings ......................... 3 1. General ........................4 2. Installation codes ...................... 4 3. Warranty ........................4 4. Uncrating and preparation ..................4 5. Dimensions ....................... 5 6. Technical data ......................6 7. Flueing requirements ....................7 8. Unit heater location ....................10 9. -
Page 3: Warnings
WARNINGS FOR YOUR SAFETY What to do if you smell gas: • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier. •... -
Page 4: General
General Models UPA 30 through 90 are design certified to the CE EN1020 standard for use in industrial and commercial installations only. All models and sizes are available for use with either natural or propane gas. The type of gas, the input rate and the electrical supply requirement is shown on the heater rating plate. -
Page 5: Dimensions
5. Dimensions & Clearances (horizontal orientation=standard) Figure 1 Top view Rear view (mod. 40 & 50) Rear view ( mod. 30, 60, 70 & 90) Front view Side view Legend: 1. Combustion air inlet 2. Flue connection 3. External gas connection 4. -
Page 6: Technical Data
Units must be installed so that the minimum clearances in the following table are Clearances (mm) provided for combustion air space, inspection and service and for proper spacing from combustible materials. Table 2 : Clearances (mm) Attention : The clearance distance from Model Z (*) the flue system must be... -
Page 7: Flueing Requirements
7. Flue Model UPA heaters may only be installed as Type-B installations. requirements Flue must be in accordance with BS6230 or BS5440. Local requirements may apply in addition to national requirements. These unit heaters are designed to operate safely and efficiently with either a horizontal or vertical flue system when installed with the specific requirements and instructions . - Page 8 Venter outlet attachment requirements: Flue outlet Depending on the size of the flue pipe as determined in table 5, attach either the flue pipe directly to the collar or a taper-type connector. Flues for power If the air heater is to be installed as a type B appliance, air for combustion will be taken from within the space where the heater is installed.
- Page 9 Type B appliances : Combustion air & flue pipe sockets Figure 5 Figure 4 Mod. 30, 60, 70 & 90 Mod. 40 & 50 Air supply It is important to ensure that there is an adequate air supply at all times for both combustion and heating requirements.
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Page 10: Unit Heater Location
8. Location heater Use the minimum clearances and venting table in section 5 and the throw data in the technical data table of section 6 when determining where to suspend the heater. Recommended minimum height is 2.5m. Remark: Flue requirements may WARNING: If touched, the vent pipe and internal heater surfaces that affect location. -
Page 11: Hanging The Unit
9. Hanging Before suspending the heater, check the supporting structure to verify that it has the heater sufficient load-carrying capacity to support the weight of the unit. Leave the unit on the pallet. If the bottom of the unit is not supported or protected damage can occur. - Page 12 When desired the heaters may be supported by wall brackets. Supporting in this Figure 7 : manner allows the heaters to be placed in close proximity to the ceiling or mounted Wall bracket kits (optional) directly to the vertical supporting structures of the building. There are 2 different wall bracket designs for UPA models as shown in the illustrations below.
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Page 13: Gas Piping And Pressures
10. Gas Piping and Warning : This appliance is equipped for a maximum gas supply pressure pressures of 50 mbar. WARNING : Pressure testing supply piping Test pressures above 50mbar : Disconnect the heater and manual valve from WARNING: All components the gas supply line which is to be tested. -
Page 14: Electrical Supply And Connections
11. Electrical The electrical installation may only be carried out by an appropriately qualified person current to IEE Regulations. The supply line to the heater should include a supply and main switch. The minimum clearance distance between the contacts must be more connections than 3mm. - Page 15 Figure 9 : Wiring connections on the terminal board 230V 16AT y/gr Legend : r = red bl = blue y = yellow gr = green br = brown o = orange b = black 0710UPA-AMEN, Pag. 15/33...
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Page 16: Check Installation And Start Up
12. Check Check suspension. Unit must be secure.Verify that no other parts are fitted which are not individually supported and secured. installation Check clearances from combustibles. Requirements are in section 5. & Check vent system to be sure that it is installed according to the instructions start-up in section 7, venting requirements. - Page 17 Set thermostat to the lowest setting. Operating instructions 2. Turn off all electric power to the heater. and operating sequence Shut the gas cock at the inlet of the unit. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor.
- Page 18 Burner gas pressure The gas pressure is set for the required heat input before the appliance leaves the adjustment factory. Provided that the gas supply to the air heater is in accordance with the supply pressure described on the appliance data plate, the operating pressure will not require adjustment.
- Page 19 Figure 10b : HONEYWELL gas valve (types 40 - 90) Legend Gas inlet Gas outlet Inlet pressure tap Outlet pressure tap 6.3mm AMP terminals and screws for wiring 6.3mm AMP terminals Earth terminal/screw (line voltage models only) Pressure regulator adjustment screw Table 8 : Burner jets and pressures Mod.
- Page 20 Ignition Ignition Ignition Ignition Ignition This heater is equipped with a direct spark integrated control relay. The control system system system system system relay monitors the safety devices and controls the operation of the venter motor and the gas valve between heat cycles. Normal Heat Cycle Operating The time line below illustrates a normal heat cycle.
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Page 21: Maintenance Schedule
13. Maintenance The material contained in the MAINTENANCE AND SERVICE Section of this & Service manual is designed to aid a qualified service technician in maintaining and servicing this equipment. This heater will operate with a minimum of maintenance. To ensure long life and satisfactory performance, a heater that is operated under normal conditions should be inspected and cleaned at the start of each heating season Warning :... -
Page 22: Heat Exchanger Maintenance
Figure 11b - Control panel assy located on a removable bracket Legend: 13) Control relay (ER) 14) Terminal blocks 15) Limit control LC3 16) Connector 17) Pressure switch (S3) 18) 2-stage burner relay (opton) (K1..) 19) Electronic burner relay fuse (3.15F) 14. -
Page 23: Burner Maintenance
15. Burner This heater has a unique one-piece -CORE ® burner assembly designed to provide Maintenance controlled flame stability without lifting or flashback. The burner can be removed as a unit for inspection or service : see below for removal instructions. Inspect the burner/control compartment annually to determine if cleaning is necessary. - Page 24 6. Remove burner a) Locate the burner body front support. Remove the screws that attach it to the secondary air shield. Refer to fig. 14 for component defini- tions. Figure 13a b) Holding the venturi tube, slide the entire burner slightly to the right to dis- engage the burner from the supports on the left.
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Page 25: Burner Orifice
Inspect and clean the burner With the burner assembly removed, shine a flashlight on the burner ribbons. Look for carbon buildup, scale, dust, lint, and/or anything that might restrict flow through the spaces between the burner ribbons. Holding the burner assembly so that any foreign material will fall away from the burner, use a stiff bristle brush to loosen and remove any foreign material(s). -
Page 26: Fan Motor
Figure 16a Ignitor showing required spark gap measurement Figure 16b Flame sensor Flame sensor - Refer to figure 11a and locate the flame sensor. Disconnect the Caution : Due to high voltage wire, remove the screw and the flame sensor. Clean with an emery cloth. on the spark wire and electrode, do not touch when energized. -
Page 27: Venter Motor And Wheel
3. Remove the fan assembly (fan guard, motor and fan blade). Figure 18 Fan blade position on the 4. Disassemble and replace parts as needed, then reassemble. motor shaft Be sure the fan blade is in the proper position on the shaft; refer to the illustration and table in figure 18. -
Page 28: Gas Valve
Venter wheel position on shaft Venter Figure 19 - UPA model 30 motor plate (Rotation clockwise from motor shaft end) Motor mounting bracket Venter wheel Motor cooling fan 8 mm 21. Operating The main operating quick opening gas valve is powered through the thermostat and safety controls. -
Page 29: Combustion Air Pressure Switch
Combustion The combustion air pressure switch ensures that proper combustion airflow is available. The switch senses the differential pressure between the negative air pressure pressure in the flue gas collector box and the pressure in the control section. switch (For switch location, see figure 11b.) On startup when the heater is cold, the sensing pressure is at the most negative level, and as the heater and flue system warm up, the sensing pressure becomes DANGER : Safe operation... -
Page 30: Flue And Combustion Air System
Flue and Check the complete system at least once a year. Inspection should include combustion all joints, seams, concentric adapters and the flue terminal cap. Replace air piping any defective or heavily corroded parts. 25. Trouble- The integrated control relay monitors the operation of the heater. If the shooting heater fails to operate properly, review the flow chart below and see the operating sequence in section 16. - Page 31 Trial for ignition Call for heat s there a Does gas spark across ignite? gap at igniter? Is there min. flame current at the flame sensor? Is there min. Is the flame Clean flame sensor flame current at sensor with emery cloth or steel the control corroded? wool...
- Page 32 General Troubleshooting PROBLEM PROBA BLE CAUSE REMEDY Venter motor 1. No power to unit. 1. Turn on power, check s upply fus es or circuit breaker. will not s tart 2. No power to venter motor. 2. Check connections at burner relay and/or venter motor terminals . 3.
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Page 33: Parts List
26. Parts list Description Application Part number Control relay UPA 30 - 90 03 25322 Spark ignitor UPA 30 - 90 05 25162 Flame sensor UPA 30 - 90 03 401US 195292 Limit control LC3 UPA 30 - 90 03 24959 03...
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