Warmhaus EWA 28 - Natural Gas and LPG Connection

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Fgure 8 Comb bottled gas connecton
2.2.4. Dimensions and Connections
2.2.5. Natural Gas and LPG Connection (Device Category I
2H, II2H3P)
Our comb devces are manufactured to be operated wth methane gas
(G20) and L.P.G. Gas supply ppes should be equal to or hgher than 3/4"G
comb connectons. Pror to makng the gas connecton, a studous nternal
cleanng should be made to all fuel supply nstallaton ppe furnhshngs as
possble wastes may dstort smooth operaton and relablty of the comb.
It should be controlled whether the gas dstrbuted from the man lne s as
envsaged (see the table on the comb devce).
In case of havng derences, an nterventon should be made on the comb
and converted to other gas type (consult our authorzed servces n case
of gas change). Also, n case of beng nadequate, the network dynamc
pressure (methane or LPG) to be used for supplyng the comb should be
controlled regardng the mpact on comb strength and dcultes possble
for the user. Ensure the correctness of gas valve connecton. Flammable gas
supply ppe should be able to supply correct adequate gas amount to the
boler when the comb s at full power and be projected and szed accordng
to local gas company specfcaton and nstructons n order to guarantee the
devce ecency. Connecton system should comply wth legal regulatons.
2.2.6. Flammable Gas Quality
The comb s desgned to be used wth pure fuel not contanng any foregn
substances; therefore, requred flter systems must be avalable n the gas
supply lne (for ensurng purfcaton of the fuel).
2.2.7. In Case of Using LPG Tank
LPG use s recommended for heat requrements over 24 kW. New LPG stock
tanks may contan settled gas resdues (ntrogen) however, that pauperses
the mxture assgned to that devce and cause abnormal operatons.
- Varous alloy layers may be formed durng stockng LPG gas n tanks
dependng on mxture compostons. That causes a change n heatng power
of mxture assgned to the devce and changes ecency of the devce.
2.2.8. In Case of Using Bottled Gas
• 300 mmSS pressurzed hood should be used for LPG.
• 500 mmSS hood should not be used.
• 370 mmSS pressurzed hood should be used for Propane.
• Do not place tubes at cold places havng rsk of snow for preventng frost
durng wnter months.
• Do not place tubes n hot places contanng ovens, freplaces for preventng
dangers!
• Do not make connecton wth sngle tube and use LPG collector set for
double, trple uses.
• The dstance between the collector and tube should be maxmum 125 cm.
• Copper ppe nstallaton should not used for dstances longer than 125 cm.
• Hose connecton ends should be tghtened wth clamp and no other tools
should be used.
• Gas nstallaton rules wth use of LPG tank and ndustral tubes should
comply wth local standards and to be performed by expert nstallaton
teams and certfed by the company undertakng the constructon. In case
of falng to fulfl these condtons, comb shall not be commssoned by
Warmhaus Authorzed Servces.
Fgure 7 Ewa comb dmensons and connectons
Warmhaus Ewa
A: Central heatng flow
B: Domestc hot water outlet
C: Gas nlet
D: Domestc hot water nlet
E: Central heatng return
F: Fllng valve
G: Manometer
H: Pressure relef valve outlet
I: Dran pont
J: Condansate dran
K: 230V 50HZ AC
LPG LPG
Ball Valve
COLLECTOR
370 mmSS
2 kg
Hood
12 kg or
24 kg
LPG TUBE