8 MAINTENANCE
9:CF95BMCD9F5H=CBG=HGB979GG5FMHC8=G7CBB97HH<9DCK9F
GIDD@M
":F9EI=F985G?HC5B9@97HF=7=5BCFHC5B9LD9FHH97<B=7=5B
J9FMA5=BH9B5B79CD9F5H=CBG7@95B=B;CFF9D5F5H=CB
9L97IH98K=H<H<99@97HF=75@GMGH9AIB89FJC@H5;9=H
7CI@875IG9G9F=CIG=B>IF=9GHCD9CD@9
":H<9GIDD@M7CF8=G85A5;98=HAIGH69F9D@57986M
H<9 A5BI:57HIF9F =HG G9FJ=79 5;9BH CF G=A=@5F@M
EI5@=:=98D9FGCBG=BCF89FHC5JC=85<5N5F8
"B75G9C:9LHF5CF8=B5FMA5=BH9B5B79CFA5=BH9B5B79CD9F5
H=CBGH<5HF9EI=F9D5FHF9ACJ=B;H<9CD9F5HCFAIGH695EI5@=
:=98H97<B=7=5B56@9HCF958G7<9A9G5B88F5K=B;G
"H=GGI;;9GHHCF9;=GH9F5@@A5=BH9B5B79CD9F5H=CB9L97IH98
IF=B;A5=BH9B5B79?99DD5FH=7I@5F5HH9BH=CB=BCF89F
HC5JC=8H<9=BHFC8I7H=CBC:GA5@@9LH9FB5@D5FHGH<5H
7CI@87CADFCA=G9H<989J=79G5:9HM
"H =G :CF6=889B HC 9L97IH9 5BM CD9F5H=CBG K=H< H<9
8=F97H IG9 C: <5B8G .G9 K5H9FF9G=GH5BH 5BH=7IH
;@CJ9GHC8=G5GG9A6@95B87@95B
IF=B;A5=BH9B5B79CD9F5H=CBG9LH9FB5@D9FGCBB9@=G
BCH5@@CK98
&5=BH9B5B79CD9F5H=CBGH<5H5F9BCH89G7F=698=BH<=GA5BI5@
AIGH 69 A589 CB@M 6M GD97=5@ D9FGCBB9@5IH<CF=N98 6M
5@D985,D
CF :IFH<9FH97<B=75@ =B:CFA5H=CB F9;5F8=B; H<9 IG9 CF H<9
A5=BH9B5B79C:H<989J=797CBH57H5@D985,D
8.1 Routine maintenance
9:CF9 9J9FM A5=BH9B5B79 CD9F5H=CBG 8=G7CBB97H H<9
DCK9FGIDD@M5B8A5?9GIF9H<5HH<989J=797CI@8BCH
577=89BH5@@MCD9F5H9
When the pump remains inactive it must be emptied com-
pletely if there is a risk of freezing fig. 6
9:CF9 F9GH5FH=B; H<9 IB=H 7<97? H<5HH<9G<5:H =G BCH >5AA98
5B8:=@@H<9DIAD75G=B;7CAD@9H9@MK=H<@=EI=8
8.2 Dismantling the system
@CG9 H<9 GI7H=CB 5B8 89@=J9FM ;5H9 J5@J9G 5B88F5=BH<9DIAD
75G=B;69:CF98=GA5BH@=B;H<9DIAD
9. DISPOSAL
-<9:=B5@8=GDCG5@C:H<989J=79AIGH698CB96MGD97=5@=N98
7CAD5BM
&5?9GIF9H<9GD97=5@=N987CAD5BM:C@@CKGH<97@5GG=:=75H=CB
C:H<9A5H9F=5@D5FHG:CFH<9G9D5F5H=CB
(6G9FJ9H<9@C75@F9;I@5H=CBG5B88=GDCG9H<989J=79577CF
8=B;@MK=H<H<9=BH9FB5H=CB5@FI@9G:CF9BJ=FCBA9BHDFCH97H=CB
10 SPARE PARTS
10.1 Spare-parts request
0<9B CF89F=B; GD5F9 D5FHGD@95G9 EICH9 H<9=F 89G=;B5H=CB
DCG=H=CBBIA69F=BH<97FCGGG97H=CB8F5K=B;5B8F5H9885H5
:FCAH<9DIADB5A9D@5H9HMD985H95B8G9F=5@BIA69F
-<9GD5F9D5FHGF9EI9GHG<5@@69G9BHHC%),D6M
D<CB9:5L9A5=@
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PROBLEM
-<9ACHCF8C9G
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-<9DIAD:IB7
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'C=G95B8J=6F5H=CBG
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PROBABLE CAUSES
5.BGI=H56@9DCK9FGIDD@M
6"B7CFF97H9@97HF=75@7CBB97H=CBG
7B;=B9CJ9F@C58DFCH97H=J989J=797IHG=B
8@CKBCF89:97H=J9:IG9G
9,<5:H6@C7?98
:&CHCF:5=@98
5)FC@CB;98D9F=C8GC:=B57H=J=HM
6)F9G9B79C:GC@=86C8=9G=BH<9=AD9@@9F
795F=B;GG=9N98
5)F9G9B79C:5=F=BG=89H<9DIADCFGI7H=CBD=D9
6)CGG=6@9=B:=@HF5H=CBC:5=F
7CCH J5@J9 6@C7?98 CF GI7H=CBD=D9BCH :I@@M
=AA9FG98=B@=EI=8
8,I7H=CB:=@H9F6@C7?98
5)=D9G5B85779GGCF=9GK=H<8=5A9H9FHCCGA5@@
6)F9G9B79 C: 89DCG=HG CF GC@=8 6C8=9G =B H<9
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7+CHCF89H9F=CF5H98
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:L79GG=J9J=G7CG=HMC:H<9@=EI=8DIAD98
;"B7CFF97H8=F97H=CBC:FCH5H=CB
50CFB695F=B;G
6.B65@5B798DCK9FGIDD@M
5-<9A97<5B=75@G95@<5G:IB7H=CB98K<9B8FMCF
<5GGHI7?
6&97<5B=75@G95@G7CF986MDF9G9B79C:56F5G=J9
D5FHG=BH<9@=EI=8DIAD98
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5DD@=75H=CB
8,@=;<H=B=H=5@8F=D8IF=B;:=@@=B;CFCB:=FGHGH5FHID
POSSIBLE REMEDIES
5<97?H<5HH<9A5=BG:F9EI9B7M5B8JC@H5;95F9GI=H56@9
6CBB97HH<9DCK9FGIDD@M756@97CFF97H@M<97?H<9G9HH=B;C:H<9
H<9FA5@CJ9F@C58DFCH97H=CB
7<97?H<9 DCK9F GIDD@M 5B8 A5?9GIF9 H<5H H<9 DIAD G<5:H=G
HIFB=B;:F99@M<97?H<9G9HH=B;C:H<9H<9FA5@CJ9F@C58DFCH97H=CB
8+9D@579H<9:IG9G7<97?DC=BHG55B87
9
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:+9D5=FCFF9D@579H<99B;=B9
5.B6@C7?H<9DIAD6MIG=B;5G7F9K8F=J9FHCHIFBH<9F9@9J5BHBCH7<
CBH<9657?C:H<9G<5:H
6+9ACJ95BMGC@=8:CF9=;B6C8=9G=BG=89H<9=AD9@@9F
7+9D@579H<9695F=B;G
5+9@95G9H<95=F:FCAH<9DIADIG=B;H<989@=J9FM7CBHFC@J5@J9
6<97?K<=7<D5FH=GBCHH=;<H5B8G95@H<97CBB97H=CB
7@95BCFF9D@579H<96CHHCAJ5@J95B8IG95GI=H56@9GI7H=CBD=D9
8@95BH<9:=@H9F=:B979GG5FMF9D@579=H,99DC=BH65@GC
5.G9D=D9G5B85779GGCF=9GGI=H56@9:CFH<9GD97=:=75DD@=75H=CB
6@95BH<9=AD9@@9F5B8=BGH5@@5GI7H=CB:=@H9F
7+9D@579H<9=AD9@@9F
8+9D@579H<9=AD9@@9F5B8H<9DIAD75G=B;
9)9F:CFAH<9 CD9B=B; 5B87@CG=B; A5BC9IJF9G H<FCI;< H<9 :9989F
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6<97?H<5HH<9A5=BGJC@H5;9=GF=;<H
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5&5?9GIF9H<5HH<9DIAD75G=B;=G:I@@C:@=EI=85B8H<5H5@@H<95=F<5G
699B9LD9@@98
6"BGH5@@5GI7H=CB:=@H9F5B8IG95G95@GI=H98HCH<97<5F57H9F=GH=7GC:
H<9@=EI=869=B;DIAD98
7<CCG95G95@K=H<7<5F57H9F=GH=7GGI=H56@9:CFH<9GD97=:=75DD@=75H=CB
805=H:CFH<9G95@HC58>IGHHCH<9FCH5H=CBC:H<9G<5:H":H<9DFC6@9A
D9FG=GHGG99DC=BHG56CF7