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I N S TA L L AT I O N
A N D
NXR3
MAINTENANCE MANUAL
70 / 290 kW
HIGH-EFFICIENCY, PRESSURIZED,
CAST IRON, OIL OR GAS BOILERS
1 . Standards - Regulations
2 . General
3 . Assembly and installation
4 . Installing the options
5 . Electrical diagrams
Réf. : CI - 405 - A - 1
EXPORT
07/01
1
Réf. : CI - 405 - A
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Summary of Contents for Chappee NXR3
- Page 1 I N S TA L L AT I O N A N D NXR3 MAINTENANCE MANUAL 70 / 290 kW HIGH-EFFICIENCY, PRESSURIZED, CAST IRON, OIL OR GAS BOILERS 1 . Standards - Regulations 2 . General 3 . Assembly and installation 4 .
- Page 2 1. S tandards - egulations COMPAGNIE INTERNATIONALE DU CHAUFFAGE does not accept any liability for damage caused by work that does not comply with these instructions and/or which has not been carried out by a qualified installer. This boiler design complies with the following European The boiler can be fitted with a choice of fuel oil or gas burner directives: in accordance with the builder’s recommendations, the burner...
- Page 3 2. G eneral 2 . 1 Description 2 . 3 Supplied on request oilers of this type are composed of a cast-iron • Heating body delivered assembled, exchanger, consisting in sections assembled by means of • Two extra power economizers, nipples.
- Page 4 2 . 5 Technical data Fig. 1 Flow DN 65 Return DN 65 Dimensions with water Rp 2" orifice for Drain Rp 1 1/2" orifice connection sleeve sludge flushing Réf. chaudière : N° Output : kW 90-130 130-170 170-210 210-250 250-290 70 - 90 Number sections...
- Page 5 3. A ssembly and installation Caution : assembly and installation must be carried out by a qualified engineer. 3 . 1 Boiler room layout linth (see fig. 2) onnections to water supply No special plinth is required for this type of boiler. A simple dry Connection to the heating system needs to be done according base suffices.
- Page 6 Minimum flow rate must be provided at all times, whatever the rate of operation, either : Non return valve - by means of the main flow pump, provided that the system has no mixing valve between each boiler and the pump, and that the pump operates continuously, - by means of a recycling pump or a loading pump operating permanently.
- Page 7 3 . 2 Assembling the sections he sections are assembled using nipples. For a 7) NEVER USE OLD NIPPLES. good tightness of the assemblies, it is compulsory to use a Coat nipples and reams with the product provided, special product which ensures a perfect seal (this coating is using a clean brush.
- Page 8 3 . 3 Tightening the sections o tighten the sections, a set of assembly bars is 1) Withdraw the plates’ alignment screws, necessary. It comprises: 2) Place an (A) installation bar in each row of nipples, For 4- to 7- section boiler: 3) Mount, on each bar, at the rear, a plate with (B) stop- ring, - 2 assembly bars, length = 1.60 m (A),...
- Page 9 EXCHANGER 5 Sealing cord Ø 7 40 Screws bag Fig. 9 Front section Disriburor, Length 180 External insulation Middle section Distributor, Length 530 Sight flange Flow and return manifold 26 Sight glass and seal Rear section Nipple Ø 89 Drain valve Door seal Ø...
- Page 10 3 . 4 Operational assembly diagram Operation Method Open the "chamber accessories" parcel • Assemble the 8 studs 12 x 65 around the rear section’s start and return orifices. Distributor (14 - 14a) • If necessary, insert the distributor (see figure 22) in the return orifice by interpolating the seal (13).
- Page 11 Stud M 10 x 90 Stud M 10 x 90 Door hinge and door guide Guide Hinge assembly Screw TH M 10 x 30 Screw TH M 10 x 30 Screw TH M 10 x 30 Hinge Stud M 10 x 90 Stud M 10 x 90 Stud M 10 x 90 Stud M 10 x 90...
- Page 12 3 . 5 Operational assembly diagram (continued) Operation Method Open the "casing" parcel Rear spacer (50) • Screw the hexagonal spacers on the rear section’s 3 spacer pads, and place on each (see figure 15) spacer a TH M 5 x 10 screw. Body insulation blanket (33) •...
- Page 13 CASING ASSEMBLY 71 Casing screw bag Fig. 15 50 Rear spacer 62 Middle side 51 Lower rear 63 Upper rear 52 Lower foot 64 Slinger 53 Cross-member 65 Front top 54 Right side-rail 66 Rear top 55 Left side-rail 67 Middle top 56 Lower mask 68 Upper front 57 Right side...
- Page 14 Operation Method Lower mask (56) • Place the lower mask on both lower feet at the front of the boiler (this part is pre-cut to allow passing of sludge tubing, or can also be taken out)). • Hook the front sides onto the side-rails and fasten them using the axis screws (Ø 8) Front sides (57 - 58) in the upper part and at the bottom using a TH M 5 screw on the lower foot.
- Page 15 BOILER AND BURNER POWER SUPPLY Three-phase current Fig. 16 Single-phase current Single-phase current CAUTION : If the burner motor is supplied with three-phase power, control panel single phase supply must imperatively be taken from one of the phases supplying the burner motor. VERY IMPORTANT : Never connect the burner control box directly to one of the phases supplying the burner motor.
- Page 16 Operation Method " S " control panel • Open the "wired control panel" parcel. • Turn the panel over and put it down resting on rear top, protecting it using a piece of For the “ECOCONTROL” panel refer cardboard, to provide access to cable outlets to the installation instructions •...
- Page 17 4. I nstalling the options 4 . 1 Adjustable legs or levelling the assembled heating chamber, located in the boiler room. Assembly of the 4 heating chamber legs: - Screw the adjusting screws up to the maximum in the supports, - Engage the support in the space provided on each heating chamber leg, as shown in figure 19.
- Page 18 4 . 3 Lower savers Upper baffles he two optional extra optimizing baffles should be placed in the two lower "flue-ways" as shown in figure 21: Engage each baffle in the "flue-way". Performance as shown in the characteristics table corres- pond to the boiler operating with the upper and lower baffles as shown in the position diagram opposite.
- Page 19 5. W iring diagrams 5 . 1 “STANDARD” block wiring diagrams Fig. 23 F1 6.3 AT control fuse TR1 1 output Control Thermostat TR2 2 output Control Thermostat TS Safety Thermostat VMT On indicator VSC Boiler Safety indicator ZB Burner Switch ZT Safety Test Button RAG Inverter relay for RAG2 output burner (option) Burner...
- Page 20 5 . 2 Special RAG burners 5 . 2 . 1 2-stage RAG burner If burner is of 2-stage RAG type and if controlled by a control unit, 2nd-stage control circuit must be fitted with a reverser relay. This addition is provided for in the control panels. - Secure it into the panel by means of 2 metal screws.
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