Table of Contents
Advertisement
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Rendamax R3400
Summary of Contents for Rendamax R3400
-
Page 1: R3500 Technical Data
Rendamax Technical documentation R3400 R3500 R3600 Doc890/3456CV02B... -
Page 2: Dimensions R3500
No part of this publication may be reproduced, stored in aretrieval system, or transmitted in any form or by any means, electronic, me- chanical, photocopying, recording or otherwise, without the prior permission in writing of Rendamax B.V.. We aim to achieve continuous improvement in our products. Therefore, specifi cations are subject to change without prior notice. -
Page 3: Table Of Contents
Rendamax Contents R3400 Technical data Dimensions R3400 R3500 Technical data Dimensions R3500 R3600 Technical data Dimensions R3600 Introduction Rendamax Supplier This document Service General restrictions Description General Main components 2.2.1 Description of principal components Boiler control Safety aspects Safety Delivery and transport... -
Page 4: R3600 Technical Data
Rendamax 5.4.2.1 Flow rate and resistance 5.4.2.2 Pump characteristics 5.4.2.3 Isolating valves 5.4.2.4 Valves 5.4.2.5 Water fl ow protection 5.4.3 Water pressure 5.4.3.1 Operating pressure 5.4.3.2 Boiler expansion tank 5.4.3.3 System expansion tank 5.4.3.4 Water pressure protection 5.4.4 Water temperature 5.4.5... -
Page 5: R3400 Technical Data
Rendamax R3400 Technical data Type R3401 R3402 R3403 R3404 R3405 R3406 Nominal heat output 1078 1189 Nominal heat input (nett. CV) 1038 1159 1279 Minimum heat input Pilot burner Gas consumption natural gas H ( 64.5 71.9 84.1 95.2 106.3 117.3... -
Page 6: Dimensions R3400
Clearances - 450 mm at one side - 800 mm at the other side - 450 mm at the rear - 1000 mm at the front Fig. 1 Dimensional sketch R3400 Doc890/3456CV02B... - Page 7 DN80 PN6 DN80 PN6 DN80 PN6 Table 2 Dimensions R3400 (Changes may be introduced without notice) As a result of manufacturing tolerances, there may be small variations in the dimensions. Conditions applicable to table 1: - Nominal capacity measured at: 60 - 80°C.
-
Page 8: Introduction
1 Introduction Rendamax Since its beginning in 1968, Rendamax has built up a strong reputation in industry for the devel- opment, production and marketing of gas-fi red, high effi ciency boilers in the 60 to 1200 kW range. Through their unique construction, these central heating units are renowned for their: - high thermal effi... -
Page 9: General Restrictions
The R3400/R3500/R3600 series are environmentally friendly modulat ing gas fi red heating boilers that can vary its output from 25% to 100% of its maximum capacity. The series R3400 consists of 6 types in a range from 657 to 1189 kW. - Page 10 fl ow of 5 - 10 % of the entire water fl ow. The R3400/R3500/R3600 units have a small water capacity so that it can rapidly adjust to chang- ing conditions. It can be in stalled without any restrictions to the return water temperature. The necessary water fl...
-
Page 11: Main Components
Rendamax Main components 1 Return connection 18 Condensate collection tank 2 Flue gas discharge R3600 or 19 Flue gas collection chamber Flue attenuator 20 Combustion chamber 3 Water fl ow switch 21 Electrical cable duct 4 Safety valve 22 Condensate discharge... -
Page 12: Description Of Principal Components
Rendamax 2.2.1 Description of principal components The unit is constructed from the following principal compo nents: Fan [24] This consists of a fan casing, a fan impeller and an electric motor. The fan sucks in combustion air and increases the air pressure. -
Page 13: Boiler Control
Frame [14] The frame is constructed from steel profi le sections. Vibration absorption dampers are supplied separately and must be fi tted after the unit has been placed in position. The casing [27] The casing consists of panels that can be removed easily without the aid of tools. The electrical section This includes the control and safety circuits for the unit. -
Page 14: Safety
3 Safety Installation instructions Read through these instructions carefully before starting the installation. The appliance must be installed by a recognised installer in accordance with the applicable na- tional and local regulations (see Supplement). The installation may only be used for heating systems up to a maximum water temperature of 90°C. -
Page 15: Delivery And Transport
Rendamax Modifi cation Modifi cations to the installation may only be carried out with the written approval of the manufac- turer. Danger of explosion When activities are being undertaken in the boiler room, always follow the applicable instructions “Working in an area where there is a danger of explosion”. - Page 16 Rendamax Moving the appliance A pallet truck or fork lift truck with a minimum fork length of 1 m can be used at the side of the unit. Fig. 6 Moving the appliance Rollers After the wooden blocks have been removed, it is possible to move the appliance by rolling it over tubes.
- Page 17 Rendamax Lifting The fi gure below shows how a unit can be safely lifted. To avoid damage to the panels, these should fi rst be removed. The wooden bars between the straps ensure that the unit will not be damaged during lifting.
- Page 18 Rendamax Dismantling and reassembly When the unit cannot be placed in position because of its dimensions or weight, the boiler may be partially dismantled. When it is necessary to perform extensive dismantling, we advise you to make early contact with your supplier.
- Page 19 Rendamax R3600 only Heat exchanger Type L (mm) B (mm) H (mm) m (kg) R3601 R3602 R3603 R3604 R3605 Fig. 11 Dimensions and weights of the third heat exchanger Frame Type L (mm) B (mm) H (mm) m (kg) R3401...
- Page 20 Rendamax Protection against frost If the unit is out of use during the winter months there is a danger of freezing. Drain the water from the installation using the fi lling/drainage valves. Doc890/3456CV02B...
-
Page 21: Installation
Rendamax 5 Installation Regulations The appliance must be installed by a recognised installer in accordance with the applicable na- tional and local specifi cations and regulations. Commissioning should be carried out by the service department of your supplier, who can also determine the composition and quality of the system water. -
Page 22: Ventilation
Rendamax Fig. 14 Roof installation Fig. 15 Loft installation 5.2.3 Ventilation The ventilation of the boiler room must satisfy the applicable national and local standards and regulations. With regard to ventilation, pay particular attention to the follow ing points: a Observe the applicable national and local standards and regulations for the dimensions of the... -
Page 23: Electrical Connection
Rendamax The gas connection is made at the rear of the boiler. Types R3401, R3402, the R3501 - R3505 and R3601 - R3605 are not suitable for immediate connec- tion to a 100 mbar natural gas system (as option 100 mbar). The pressure of the gas sup-plied to the unit must be reduced to 25 mbar for natural gas or 50 mbar for propane with the use of a gas pressure regulator. - Page 24 Rendamax In accordance with the applicable standards and regulations, an emergency shut-off must be fi t- ted outside the boiler room. In the event of a calamity, the power supply to the unit can be switch- ed off. Earth leakage trips can give problems when they are used in combination with frequency convert- ers.
- Page 25 Rendamax BME (option) This is a weather-compensated regulator with the following possibilities: - Three on/off periods per day with three different tempera tures - Night-time temperature reduction - Domestic hot water priority with time programming - Anti-legionella provision - Optimum start...
-
Page 26: Water Connections
Fig. 17 Support The R3400/R3500/R3600 units are constant water fl ow appli ance and are suitable for use in both open vented (non-pres surised) systems and sealed (pressurised) systems provided the minimum pressure requirements, as per table 14, are met. The unit is fi tted with a boiler pump as standard and which guarantees the required water circulation throu gh the boiler. -
Page 27: Combustion Air Supply
Rendamax In order to limit the losses occurring in a non-operational boiler, a motorised valve is sometimes fi tted in the fl ow or the return pipe or a mechanical non-return valve is used for this purpose. Standby losses can be reduced even further by shutting down the boiler via the “boiler enable”... - Page 28 Rendamax Fig. 19 Air supply connection The connection to the air supply pipe is always mounted on the top of the unit. Multiple units may not be connected to the same air supply or fl ue pipe. To prevent snow entering, the air supply pipe must extend at least 30 cm above the roof and must be fi...
-
Page 29: The Flue System
Rendamax Fig. 21 Distance between air inlet and fl ue gas outlet The formation of unwanted condensation must be avoided. In the event that during the heating up period condensation oc curs, the condensate must be able to fl ow back to the unit. Inspection of the air supply and fl... -
Page 30: Chimney
Rendamax Type Flue gas tem- Flue gas quantity at full Maximum perature at capacity permissible full capac ity chimney (approx.) resistance °C kg/s mbar R3401 1423 0.330 R3402 1580 0.367 R3403 1848 0.428 R3404 2091 0.485 R3405 2334 0.541 R3406 2578 0.598... - Page 31 Fig. 22b Chimney connection R3600 The R3400 and R3500 appliance must never be connected to a fl ue sysytems with a plastic lining (consult the applicable stand ards and regulations). The maximum fl ue gas temperature at full capacity and with a water supply temperature of 80°C will not exceed 170°C for the R3400, 160°C for the R3500 and 90°C for the R3600.
- Page 32 Rendamax Maximum permitted fl ue system length in metres of smooth pipe. Standard fl ues only. Type Length of fl ue system in m Diameter Diameter Diameter 300 mm 350 mm 400 mm R3401 R3402 160* R3403 119* R3404 180*...
-
Page 33: Condensate Discharge
Rendamax ζ=1 Type Diameter Elbow 90° Elbow 90° Elbow 45° 90° Tee ζ=0,5 ζ=2 in mm R/D = 1 right an gle R3401 300* 14.5 R3402 350* 12.0 18.4 R3403 350* 12.2 18.8 R3404 400* 10.6 13.8 21.3 R3405 400* 10.0... -
Page 34: Hydraulic System
The R3400/R3500/R3600 units are low water content boilers for which the water fl ow rates must be within minimum and maxi mum values. - Page 35 Rendamax Type ∆T 20 K Pump data Nominal Boiler- Grundfos Pump Head Available Max.* fl ow resis- Pump type speed head at power rate tance Qnom. Qnom. consump- tion R3401 28.54 UPS 65-120F 1.15 R3402 31.63 UPS 65-120F 1.15 R3403 37.00...
-
Page 36: Pump Characteristics
Rendamax For additional energy savings an optional speed controlled pump is available for the R3500 and R3600. For details of this, consult your supplier. 5.4.2.2 Pump characteristics UPS 65-120F UPS 80-120F Fig. 24 Pump char. UPS 65-120F Fig. 25 Pump char. UPS 80-120F LM 80-160/162 Fig. -
Page 37: Isolating Valves
5.4.2.4 Valves For R3400/R3500/R3600 units connected in cascade, a de layed motorised shut-off valve can be used if it is controlled by the boiler using terminals 14 + 15 or alternatively, a mechanical non-re- turn valve can be used. This is required so as to avoid short-circuiting the appliance on the water side. -
Page 38: Water Temperature
Rendamax 5.4.4 Water temperature The maximum permissible temperature of the water fl ow can be set at 90°C. If the high limit thermostat functions at 100°C, the appliance shuts down and locksout and does not restart auto- matically when the temperature falls below the high limit tem perature setting. -
Page 39: Examples Of Hydraulic Systems
Rendamax In order to guarantee a well functioning system and a long life, any suspended and corrosion pro- ducing particles must be removed with the aid of a well chosen and fi tted fi lter system. The analysis of system water and the cleaning of fi lters must form part of the periodic inspection procedure. - Page 40 Rendamax will react to this and will open the regulator func tions (valves, etc.) in the system. Generally, the temperature of the water supply from the boiler(s) will need to be corrected to obtain the desired temperature in the connected circuits.
- Page 41 Rendamax When two appliances are switched in cascade, it is advisable to employ this system. When ap- pliances are controlled by a buil-ding optimising system using weather compensation or a com- pensating unit, the common fl ow temperature sensor must be mounted at the common fl ow pipe as indicated in the drawing.
-
Page 42: Operating Instructions
Rendamax 6 Operating instructions Function When a heating demand is received and before the boiler starts up, the appliance must be pre- purged. Gas and air are optimally mixed in the mixing chamber. The fan supplies air for combustion, the quantity being regulated by the frequency controlled fan speed. - Page 43 Rendamax Operating mode (cover closed) With the cover closed and by using the rotational switch (pos. No. 2) clockwise or anti-clockwise the boilers’ operating mode can be set. The operating modes are: standby the boiler switched off but frost protection is active...
-
Page 44: Fault Indications
Rendamax Setting the fl ow temperature for Domestic Hot Water (cover open) N.B. Only applicable if the Direct Hot Water function is used with the BM-E expansion module. - Open the lid - Turn the rotational switch (pos.5) clockwise until the arrow at the bottom of the LCD display indicates parameter P2 - Press the combined Reset/Programming key (pos. -
Page 45: Start-Up
Rendamax Start-up 1 Open the gas valve. 2 Switch on the appliance using the on/off switch on the con trol panel. 3 Select the function “automatic operation q” using the func tion selector. (See also the operat- ing instructions on the boiler). - Page 46 Rendamax Check that there is a by-pass or a low velocity header fi tted in the hydraulic system. This is a requirement. Check and bleed the pump Switch on the power supply to the boiler at the on/off switch and check the direction of rotation of the boiler pump after removing the end cap from the pump motor housing.
-
Page 47: Maintenance
Rendamax Measure the gas pressure at the supply side of the gas valve. This must be at least 18 or 35 mbar (for natural gas) with the boiler operating at full capacity. When multiple appliances are installed in the boiler room, this pressure must be measured with all the appliances operating at full capac- ity. -
Page 48: Procedure
Rendamax The following activities must be carried out (for an extensive description of these activities, see 8.3): - Renew the ignition and ionisation electrodes - Clean the air inlet damper - Clean the fan blades - Clean the fl ue gas collection chamber - Clean the condensate trap and the drainage pipe from the appliance - Clean the gas fi... -
Page 49: Cleaning The Fi Lter/Screen In The Gas Combination Block
Rendamax Cleaning the fi lter/screen in the gas combination block Not applicable Ionisation measurement In order to carry out an ionisation measurement, a micro-am meter with a measuring range of 0 - 200 µA DC must be con nected in the ionisation circuit. In this way the ionisation protec tion function can be checked. - Page 50 Rendamax 20 9 1 17 − 20 9 3 (for N = 1 ) = 15.0 x 1.17 = 17.6 ppm 17.6 x 1.759 = 30.9 mg/kWh kcal/h Btu/h 0.86 3.41 1.163 3.97 0.293 0.252 Table 17 Conversion factors 1 kcal = 4.187 kJ...
- Page 51 Rendamax meg/l °dH °f °e CaCO meg/l 3.51 °dH 0.37 1.78 1.25 17.8 °f 0.56 °e 0.285 1.43 14.3 mg CaCO 0.02 0.056 1.54 Table 18 Conversion of degrees of hardness 1 degree English hardness (°e) 65 mg CaCO /imp. gallon 1 Grain/US Gallon 0.958°dH...
Need help?
Do you have a question about the R3400 and is the answer not in the manual?
Questions and answers