CE PIN 0063AS3538 INSTALLATION & SERVICING INSTRUCTIONS 8G.51.28.01/04.03 We reserve the right to make changes These instructions to be retained by user.
Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Introduction ................................................................................................................................................. 4 Regulations ................................................................................................................................................. 4 Description of the appliance ...............................................................................................
1 Introduction These instructions describe the functioning, installation, use and primary maintenance of ATAG central heating units for United Kingdom and Ireland. Where necessary different regulations of each country are separately described. These instructions are intended for the use of Corgi registerd installers or registered Bord Gais installers in connection with the installation and putting into operation of ATAG units.
The following (safety) symbols may be encountered in these installation instructions and on the unit: will only have to switch on once an hour. In this case the aim is to obtain maximum comfort and efficiency. This symbol indicates that the unit must be stored away from frost. In order to be able to anticipate installation heat emissions the boiler has been fitted with a proportional gradient control system.
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type of unit combustion air supply/flue gas exhaust mm gas pipe - g S-HR 15 S-HR 24 S-HR 24T S-HR 35 S-HR 35T S-HR 51 S-HR 51T S-HR 60 80/125 80/125 80/125 80/125 80/125 80/125 80/125 80/125 ½" inside ½"inside ½" inside ½" inside ½" inside ¾" inside ¾" inside ¾"inside central heating flow pipe - f mm 28 28 28 28 28 35 35 35 central heating return pipe - r mm 28 28 28 28 28 35 35 35 24 24 24 24 24 24 condensation discharge pipe - c mm 24 24 expansion vessel
6.1 Central heating system The boiler pipes can be connected to the installation by means of compression fittings. Reducers should be used for connecting to thick-walled pipe (welded or threaded). The boiler has a self-adjusting and self-protecting control system for the load and the pump capacity. By this means the temperature difference between the flow and return water is checked.
6.2 Expansion vessel All ATAG Blauwe Engel S-HR-24T and 35T boilers are provided with an expansion vessel on top of the cylinder. This expansion vessel is connected to the three-way valve and the circulation pump. By this means the expansion water, when functioning for the hot water supply, is prevented from being shut off from the expansion vessel when the radiator thermostat valves are fully closed. The ATAG Blauwe Engel S-HR 51T is provided with a expansion vessel connection.
515 370 wall 145 figure 5 The space which is required for mounting the expansion vessel module corresponds with the required space for mounting an S-HR boiler. They included template and mounting strip for the S-HR boiler which can be used for the expansion vessel module. The S-HR boiler is fitted on to this after the expansion vessel module has been mounted. The necessary mounting strip for the boiler is present on the module.
6.4 Gas connection 6.6 Hot water supply S-HR 15, 24 and 35 The appliance pipe is fitted with an internal thread, into which the tail piece of the gas tap can be screwed. Depending of the comfort preferences different external hot water cylinders can be connected to the boiler. The choice of the cylinder depends on the coil output. The coil output must comply with the boiler output. The S-HR 15, 24 and 35 are provided with an internal 3 way valve.
6.7 Flue gas exhaust system and air supply system We recommend that you use a stainless steel flue gas outlet material. Using the ATAG icicle-free roof outlet prevents ice from building up on the roof outlet. The appliance connection diameter is 80 mm, to which the flue gas outlet and air supply system can be fitted, with or without elbow pieces. It is also possible to use a concentric connection. The maximum permissible pipe length is set out in Table 5.
In cold and/or humid weather water vapour may condense on leaving the flue terminal. The effect of such ‘steaming’ must be considered. The terminal must not be located in a place where it is likely to cause a nuisance. For protection of combustibles, refer to IS 813 section 9.10.1. where the terminal is less than 2m (6.6ft) above a pavement or platform to which people have access (including) any balcony or flat roof the terminal must be protected by a guard of durable material.
7 External hot water cylinders Various external hot water cylinders can be connected to a S-HR boiler, depending on the hot water require-ments. The wiring of the cylinder thermostat can be connected to the connection block in the Control Tower by means of the relevant plug. S-HR51 and S-HR60 Consult your supplier when using cylinders with lower absorption than 35kW or primary pipe and/or coil size less than 1 inch.
figure 11 electrical connecting diagram Installation instructions S-HR series page 15
9 Boiler controls The boiler is provided with a fully automatic microprocessor control. This control simplifies operation by undertaking all major control functions. Initially when power to the unit is switched on it will remain on standby. The control panel display will show the relevant state. The various parameters can be called up in two ways: 9.1 Explanation of the function keys Key functions from the indication are: - The state.
10 Filling and venting the boiler and installation - Filling of the system is carried out in the normal way. In order to read out the central heating water pressure the electrical supply must be switched on. The circulation pump will not begin to operate as long as the operating lamps are off. The control display will show a indication, which means that the control is signalling insufficient water pressure.
11 Commissioning the boiler Before the boiler is fired, ensure that the boiler and the system are well vented and free of air. Purge the gas line between the gas meter and the boiler and carry out a gas soundness test as specified in the current Gas Safety Regulations. The boiler does not require adjustment of the burner pressure and air quantity because it is self adjusting and is factory set at the correct value. 11.
User parameter adjustments Step description 1 maximum flow water temp. central heating 2 type of central heating system factory range 85°C 20 - 90°C 01 1-4 85°C autom. 2.3 autom. 01 radiators; air heating; convectors T max flow water K factor heating line gradient gear differential 02 5°C/min autom. 6°C autom. radiators with large surface areas or underfloor heating as additional heating T max flow water K factor heating line gradient gear differential 70°C autom. 1.8 autom.
Installers adjustments Adjustments whereby technical knowledge is required have been classified under the installers level. Access to this level is obtained after feeding in a code, after which adjustments for user and installer are visible. For going to the “Adjustments Parameters” chapter the Mode key should be pressed once after which it is shown with the text. Scrolling in the parameter chapter can be carried out by means of the Step key.
Service chapter. After the access code has been fed in it is possible to temporarily manually adjust the number of revolutions of the fan in the service chapter (table 10). In order to select the service chapter the Mode key has to be pressed 3 X after feeding in the access code. By means of the Step key the first function is displayed with the text Off. By means of the + or - key a required number of revolutions for the fan can be selected while the boiler is operating.
13 Commissioning - The top of the casing is hooked behind a locking edge and is locked behind the door on the front of the casing with a screw. After removing this screw the casing must be lifted at the bottom by which means it is released from the locking edge. Then the casing can be removed forward.
- - - connect the digital pressure gauge hose to the uppermost measuring nipple of the gas block according to figure 13; activate the manual control by briefly pressing the “-” key; take the fan to minimum load by means of the “-” key, after which the measured pressure difference must be between 0 and -4 Pa ; ending the manual selection is done by pressing the “-” key until the minimum load is displayed. After is shown pressing this key again the text which means that the manual selection is off. 13.
14 Maintenance Maintenance or changes to the unit may only be carried out by an authorised technician. 14.1 The frequency of maintenance We advise to carry out an inspection to the boiler every two years and an overhaul every four years. When doing this the circumstances of the boiler’s location must be taken into account. From this one can determine whether to deviate from this advice. 14.
15 Technical specifications appliance type S-HR 15 S-HR 24 S-HR 24T S-HR 35 S-HR 35T S-HR 51 S-HR 51T L S-HR 60 input (Hs) kW 15,0 24,0 24,0 35,0 35,0 51,0 51,0 60,0 input (Hi) kW 13,5 21,6 21,6 31,5 31,5 45,9 45,9 54,0 modulation range (capacity 80/60°C) kW 3,5-13,3 3,5-21,2 3,5-21,2 4,9-30,9 4,9-30,9 8,8-44,9 8,8-44,9 8,8-52,9 modulation range (capacity 50/30°C) kW 3,9-14,4 3,9-23,0 3,9-23,0 5,3-33,6 5,3-33,6 9,5-48,7 9,5-48,7 9,5-57,2 % 98 98 98 98 98
16 Diagram showing various parts of the boiler T5 3 E 18 4 5 7 9 8 T1 6 1 T2 2 P1 14 17 T3 10 15 11 12 G A boiler diagram G A R C E E1 K W gas pipe flow connection central heating return connection central heating condensation pipe expansion vessel (only S-HR 24T and 35T) expansion vessel pipe (only S-HR 51T) cold water pipe (S-HR-T) hot water pipe (S-HR-T) T1 T2 T3 T5 flow sensor return sensor cylinder sensor HWS (S-HR-T) flue gas sensor (if fitted) P1 water pressure sensor Installa
P1 4 T1 T2 G 2 19 1 3 A 10 T5 17 16 5 R C 11 7 E1 13 14 6 18 T3 9 K E W figure 17 boiler description 1 2 3 4 5 6 7 8 9 10 heat exchanger ignition unit fan unit air inlet damper gas block safety valve automatic air vent ceramic burner bricks cylinder HWS (S-HR-T) operating panel 15 11 12 13 14 15 16 17 18 19 Control Tower water filter return central heating three-way valve (S-HR-T) circulation pump thermostatic mixing valve (S-HR-T) flue gas discharge combustion air supply air u
17 Example diagrams for connecting the boiler 17.
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18 Error indication When detected, errors are indicated on the display. Some, of a temporary nature, will not usually result in the boiler locking out. Whilst the control system will try its utmost to prevent lockout, and may temporarily switch off the unit, any fault which could potentially damage the appliance will result in lockout. The following are examples of message display, which fall into two categories - i.e. Blocks and Errors. Blocks with a number in the last 2 positions.
19 CE-Certificate United Kingdom Installation instructions S-HR series page 31
20 CE-Certificate Ireland Installation instructions S-HR series page 32
This renewed publication cancels all previous installation instructions. The company reserves the right to change the specifications and dimensions without prior notice E. & O. E.
Explanations of symbols and signs on the Control Tower display. display central heating progr. on / off Step key hot water progr. on / off pump progr.
