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I N S T A L L A T I O N
M A N U A L
N X R 3
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 . Commissioning
6 . Maintenance
1
Ref. : CH - 1249 - A - 2
Ref. : CH - 1249 - A - 2 - EN
07/01
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Table of Contents
Related Manuals for Chappee NXR3
Summary of Contents for Chappee NXR3
- Page 1 I N S T A L L A T I O N M A N U A L N X R 3 70 / 290 kW HIGH-EFFICIENCY, PRESSURIZED, CAST IRON, OIL OR GAS BOILERS 1 . Standards - Regulations 2 . General 3 .
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Page 2: Standard - Regulations
1. STANDARD - REGULATIONS BAXI 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: Shipping, Packaging
2. GENERAL 2 . 1 Description Boilers of this type are composed of a cast-iron exchanger, consisting in sections assembled by means of nipples. Their heat transfer surfaces have been specially 2 . 4 Shipping, Packaging designed to reach high efficiency. The exchanger is insulated by a glass wool layer lined by lacquered steel casing panel, Packaging is as follows : itself insulated to reduce heat losses to a minimum. -
Page 4: Technical Data
2 . 5 Technical data Flow DN 65 Fig. 1 Return DN 65 Rp 2" orifice for Dimensions with water Drain Rp 1 1/2" orifice sludge flushing connection sleeve Réf. chaudière : N° Output : kW 250-290 90-130 130-170 170-210 210-250 70 - 90 Number sections... -
Page 5: Assembly And Installation
3. ASSEMBLY AND INSTALLATION Caution : assembly and installation must be carried out by a qualified engineer. Connections to water supply 3 . 1 Boiler room layout Connection to the heating system needs to be done according Plinth (see fig. 2) to statutory regulations and trade practice. - 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 7) NEVER USE OLD NIPPLES. Coat nipples and reams with the product provided, using a clean brush. The sections are assembled using nipples. For a good tightness of the assemblies, it is compulsory to use a special 8) Place the nipples in the vertical section’s orifices and product which ensures a perfect seal (this coating is always drive them in slightly using a piece of wood on which...
- Page 8 1) Withdraw the plates’ alignment screws, 3 . 3 Tightening the sections 2) Place an (A) installation bar in each row of nipples, To tighten the sections, a set of assembly bars is necessary. It comprises: 3) Mount, on each bar, at the rear, a plate with (B) stop- ring, For 4- to 7- section boiler: 4) Mount at the front the (C) plates with tightening nut,...
- Page 9 EXCHANGER 5 Sealing cord Ø 7 40 Screws bag Fig. 9 Disriburor, Length 180 External insulation Front section Middle section Distributor, Length 530 Sight flange Rear section Flow and return manifold 26 Sight glass and seal Drain valve Door seal Ø 16 Nipple 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 . 4 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) •...
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Page 13: Casing Assembly
CASING ASSEMBLY 71 Casing screw bag Fig. 15 50 Rear spacer 61 Rear left side 51 Lower rear 62 Middle side 52 Lower foot 63 Upper rear 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... - Page 14 Method Operation 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)). Front sides (57 - 58) •...
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Page 15: Electric Connection
ELECTRIC CONNECTION CABLES FITTING The facility must comply with currently enforced national and local regulations.Notably, the electric connection of the boiler requires a sectioning device on each pole with a minimum 3 Capillaries mm distance between each contact. For the complete electric connection of the various Front types of control panels, refer to the manual specific to crosspiece... -
Page 16: Installing The Options
4. INSTALLING THE OPTIONS 4 . 1 Adjustable legs For 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. Fasten the supports on the end of each assembly linkage (nut + washer), - Slide the pads under the adjusting screws, - Level using the screw with a 17 flat wrench (adjusting travel = 16 mm maximum). -
Page 17: Control Panel Options
4 . 3 Lower savers Upper baffles The 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 18: Maintenance
5. COMMISSIONING 6. MAINTENANCE 5 - 1 Filling Boiler - Water quality for the heating system Check water pressure on pressure gauge and, if necessary, restore normal pressure. Only perform this operation when Avoid using hard water, which may scale the boiler. If TH the system is cold. - Page 19 Ref. : CH - 1249 - A - 2...
- Page 20 93158 Le Blanc-Mesnil - Cedex Téléphone : + 33 (0)1 45 91 56 00 Télécopie : + 33 (0)1 45 91 59 50 www.chappee.com S A au capital de 43 214 640 € RCS Bobigny B 602 041 675 A.P.E 282 D Ref.
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