Lezeti Chiltrix CXI34 User manual

LEZETi CXI FCU _Manual Version 1.4
!"
"
CXI Chiltrix FCU"
5.1”Thin DC –Inverter Water Fan Coil Unit
Floor, Wall or Ceiling,
Universal Mount
"
MANUAL
"
"
"
"
"
"
"
#$%&'()"!*+"
"

LEZETi CXI FCU _Manual Version 1.4
,"
"
"
! " #$ %# $&'
""""-./0123"!"42523/6"751389:-1785*********************************************************************************************************************************;"
"
!*""""""0%$<=>$"*****************************************************************************************************************************************************************";"
,*"""""0%(?@>A"7)A%(?@>A'()"********************************************************************************************************************************************";"
;*"""""B$=&@%$C$)A&"*****************************************************************************************************************************************************";"
+*"""""0%(?@>A"D$=A@%$&"**************************************************************************************************************************************************"E"
"""E*"""""""""""""""F=<$AG"0%$>=@A'()&"=)?"H=%)')I&*************************************************************************************************************************E"
"
-./0123","023D83B/5-2"/59"F02-7D7-/1785F***************************************************************************************************************J"
"
!*"""""0$%<(%C=)>$"-@%K$&""********************************************************************************************************************************************"J"
""",*""""""""H=A$%"DL(M"3=A$&"=)?"H=A$%"0%$&&@%$"9%(N&"****************************************************************************************************!J"
"
-./0123";"75F1/66/1785**************************************************************************************************************************************************!O"
"
!*"""""""7)&A=LL=A'()"0%$>=@A'()""**************************************************************************************************************************************"!O"
,*"""""7)&A=LL=A'()"0(&'A'()"P""H=LL"B(@)A&""******************************************************************************************************************"!O"
;*"""""3$C(K')I"AQ$"F'?$"-(K$%&"**********************************************************************************************************************************"!R"
+*"""""H=LL"(%"#$%A'>=L"DL((%"B(@)A"7)&A=LL=A'()"***********************************************************************************************************",S"
"""E*"""""""""".G?%()'>"7)&A=LL=A'()*******************************************************************************************************************************************,,"
"""T*" " """-()?$)&=A$"?'&>Q=%I$"****************************************************************************************************************************************,;"
"""J*""""-$'L')I"7)&A=LL=A'()***********************************************************************************************************************************************,+"
O*".G?%('>"-())$>A'()&"<(%".(%'U()A=L"7)&A=LL=A'()&"***********************************************************************************************,T"
R*"B=')A$)=)>$"*******************************************************************************************************************************************************,J"
"
-./0123"+"D3851"0/526"8023/1785*******************************************************************************************************************************,R"
"
!*"""""V@AA()&"***************************************************************************************************************************************************************",R"
,*"""""8N$%=A'()"7)&A%@>A'()"*****************************************************************************************************************************************",R"
;*"""""0=%=C$A$%&"*********************************************************************************************************************************************************";;"
+*"""""3$C(A$"-()A%(L"**************************************************************************************************************************************************";+"
E*"""""H'%')I"9'=I%=C"**************************************************************************************************************************************************";T"
T*"""""FA=)?=%?"D=)"-('L"6((N"0@CN"H'%')I""****************************************************************************************************************";J"
J*"""""F$)&(%"3$&'&A=)>$"1=WL$""************************************************************************************************************************************";O"
O*"""""1%(@WL$"FQ((A')I""***********************************************************************************************************************************************";R"
R*"""""0=%A&"V%$=X?(M)""***********************************************************************************************************************************************"+S"
"
"

LEZETi CXI FCU _Manual Version 1.4
;"
"
CHAPTER 1 GENERAL INTRODUCTION
"
1
.
"
"
"
""
"
"
"
() *+,-./,'
1Q=)X"G(@"<(%">Q((&')I"AQ$"-Q'LA%'Y"9-"Z"7)K$%A$%"QG?%()'>"<=)">('L*"
•1Q$"C=)@=L"')>L@?$&")$>$&&=%G"')<(%C=A'()">()>$%)')I">(%%$>A"')&A=LL=A'()["(N$%=A'()["=)?"
C=')A$)=)>$"(<"@)'A&*"V$<(%$"')&A=LL')I"(%"(N$%=A')I"C=>Q')$&["NL$=&$">=%$<@LLG"%$=?"AQ'&"C=)@=L*"
•HQ$)"G(@"=%$"')&A=LL')I"AQ$"K$%A'>=L"M=A$%"<=)">('L[">())$>A')I"AQ$"M=A$%">'%>@'A["(%"M'%')I"$L$>A%'>"(%"
$L$>A%()'>"?$K'>$&["NL$=&$"=?Q$%$"A("AQ$"')&A%@>A'()&"L'&A$?"')"AQ'&"C=)@=L*"9(")(A"N(M$%"()"(%"A$&A"
C=>Q')$&"@)A'L"AQ$"')&A=LL=A'()"'&">(CNL$A$*"
•-Q'LA%'Y"%$&$%K$&"AQ$"%'IQA"A(">Q=)I$"AQ$"&N$>'<'>=A'()"=)?"?$&'I)"(<"@)'A&"MQ'>Q"C=G"L$=?"A(">()A$)A"
>Q=)I$*"/LM=G&"@&$"AQ$"L=A$&A"K$%&'()"(<"AQ'&"C=)@=L["AQ$"K$%&'()")@CW$%"'&"L'&A$?"()"AQ$"<%()A"N=I$*""
(""
"
"
"1Q$""C=)@=L""')>L@?$&"")$>$&&=%G""')<(%C=A'()"">()>$%)')I"">(%%$>A""')&A=LL=A'()[""%@))')I""=)?"
"
"
() *+012/3405'653+012/3405'
8@%"K$%A'>=L"M=A$%"<=)">('L"'&"$)$%IGP&=K')I"=)?"$)K'%()C$)A=LLG"<%'$)?LG"$\@'NC$)A*"7A")(A"()LG"Q=&"
>(CN=>A"&A%@>A@%$"=)?"W$=@A'<@L"=NN$=%=)>$["W@A"=L&("(>>@N'$&"L'AAL$"&N=>$"=)?"'&"$=&G"A("
C=')A$)=)>$*"
"
"
1Q$"K$%A'>=L"<=)">('L"'&")(A"()LG"<(%"G(@%"Q(C$["W@A"=L&("<(%"Q(A$L&["(<<'>$&["%$&A=@%=)A&"=)?"MQ$%$K$%"
G(@")$$?"=">(C<(%A=WL$">L'C=A$*"
"
"
"
"
"
"
"
3. Measurements
"
Model
Net Dimension
(inch: L/W/H)
Net weight / Gross weight
(lb.)
"
Power Supply
CXI34
27.5 / 5.25 / 25.75
28.7 / 32
110V-1ph-50-60Hz
CXI65
35.25 / 5.25 / 25.75
37.5 / 41.9
110V-1ph-50-60Hz
CXI85
43.25 / 5.25 / 25.75
44.1 / 48.5
110V-1ph-50-60Hz
CXI120
51. / 5.25 / 25.75
50.7 / 57.3
110V-1ph-50-60Hz
CXI148
59.0 / 5.25/25.75
73.8 / 81.1
110V-1ph-50-60Hz
"
"
"

LEZETi CXI FCU _Manual Version 1.4
+"
"
7//,880+4,8'
1Q$"<(LL(M')I"=&&$CWL'$&"=%$"')>L@?$?"')"AQ$"W(Y*"
#$%A'>=L"D=)"-('L"
7)&A=LL=A'()"1$CNL=A$"
9%=')"0'N$"
V%=>X$A&"
"
"
"
"
1(IIL$"V(LA&"
F>%$M&"
F>%$M"-=N&"
3$C(A$"
-()A%(LL$%"
"
"
"
"
"
6589,/345:'.51';.51<45:'3=,'>543"
/<A$%"?$L'K$%G["AQ$"N=>X=I$"&Q(@L?"W$">Q$>X$?"=)?"=)G"?=C=I$"&Q(@L?"W$"%$N(%A$?"'CC$?'=A$LG"A("
AQ$">=%%'$%">L='C&"=I$)A*"
HQ$)"Q=)?L')I"AQ$"@)'A["NL$=&$"A=X$"')A("=>>(@)A"AQ$"<(LL(M')I]"
" "

LEZETi CXI FCU _Manual Version 1.4
E"
"
"
"
4. Product Features
"
!!"#$%&%'()*+&,-*#).#$/*#/$%0)-##$-*#12%)*-314%#0)-45)%-.()#+)#$-4.,+$#6)
)
!) 7#)*-4)*+4#$+')#8%)#%&,%$-#/$%)3+#8)14)./&&%$)-45)914#%$6)
)
!) :.%.)-);<)=-4)&+#+$)*+&314%5)91#8)4%9)-1$>?/15%)#%*84+'+?()&-@%.)=+$)'+9)4+1.%)
+,%$-#1+46)
)
!)A/$)-1$)%"*8-4?%$)B=14>*+1'C)8-.)-)8(5$+,81'1*)*+-#14?6)
)
!) D'')/41#.)/45%$?+)?%4%$-')-45)+,%$-#1+4-')#%.#14?)3%=+$%)#8%()-$%),$%,-$%5)=+$).81,,14?6)
)
5.##Safety#Precautions#
" "

LEZETi CXI FCU _Manual Version 1.4
T"
"
'
'
"
"
75F1/66/1785"
"
B$=)')I"
"
B$=)')I"
"
8023/1785"
"
V$"&@%$"A("@&$"="?$?'>=A$?">'%>@'A"W%$=X$%["<='L@%$"A("
?("&("C=G"L$=?"A("$L$>A%'>=L"&Q(>X"(%"<'%$*"
"
B=X$"&@%$"AQ$"W=&$"(%"N=?"(<"AQ$"Q$=A"N@CN"'&"&A%()I"
$)(@IQ"A("=K('?"AQ$"@)'A"A'NN')I"(K$%*"
"
5$$?">'%>@'A"W%$=X$%"
"
"
"
-Q$>X"AQ$"')&A=LL=A'()"
"
"
"
FM'A>Q"(<<"AQ$"@)'A"
"
0%(Q'W'A"
0L$=&$">Q$>X"AQ$"')&A=LL=A'()"W=&$"<(%"A'LA')I"()"="
%$I@L=%"W=&'&[">%=>X$?"(%"A'LA')I"&Q(@L?"W$"%$NL=>$?*"
0L$=&$"&M'A>Q"(<<"AQ$"N(M$%"W$<(%$">L$=)')I"(%"
C=')A$)=)>$*"
0L$=&$"@&$"="&@'A=WL$"W%$=X$%"=)?">(NN$%"M'%$"<(%"AQ$"
N(M$%">())$>A'()*"
?.+545:]"
3$C$CW$%"AQ=A"&(C$"<@)?=C$)A=L"&=<$AG"%@L$&"&Q(@L?"W$"<(LL(M$?"MQ$)"@&')I"="N%(?@>A"AQ=A"
@&$&"$L$>A%'>'AG"=)?"M=A$%["&@>Q"=&]"
7A"'&"?=)I$%(@&"A("A(@>Q"AQ$"=NNL'=)>$"M'AQ"M$A"Q=)?&"(%"W(?G"MQ$)"W=%$<((A*"
7A"'&"?=)I$%(@&"A(">=%%G"(@A"=)G">L$=)')I"W$<(%$"Q=K')I"?'&>())$>A$?"AQ$"=NNL'=)>$&"<%(C"AQ$"
$L$>A%'>'AG"N(M$%"&@NNLG"WG"A@%)')I"AQ$"&G&A$C"C=&A$%"&M'A>Q"A("8DD*"
7A"'&"?=)I$%(@&"A("C(?'<G"AQ$"&=<$AG"(%"=?^@&AC$)A"?$K'>$&"(%"=?^@&A"M'AQ(@A"=@AQ(%'U=A'()"=)?"
')?'>=A'()"(<"AQ$"C=)@<=>A@%$%*"
7A"'&"?=)I$%(@&"A("N@LL[">@A"(%"X)(A"AQ$"$L$>A%'>=L">=WL$&">(C')I"(@A"(<"AQ$"=NNL'=)>$["$K$)"'<"'A"'&"
?'&>())$>A$?"<%(C"AQ$"N(M$%"&@NNLG*"
7A"'&"?=)I$%(@&"A("N(X$"(W^$>A&"(%"=)GAQ')I"$L&$"AQ%(@IQ"AQ$"')L$A"(%"(@AL$A"I%'LL&*"
7A"'&"?=)I$%(@&"A("?'&N(&$"(<"(%"L$=K$"')"AQ$"%$=>Q"(<">Q'L?%$)"AQ$"N=>X=I')I"C=A$%'=L&"MQ'>Q"
>(@L?"W$>(C$"="&(@%>$"(<"?=)I$%*"
7A"'&"?=)I$%(@&"A(">L'CW"()A("AQ$"=NNL'=)>$"(%"%$&A"=)G"(W^$>A"()"'A*"
7A"'&"?=)I$%(@&"A("A(@>Q"AQ$"@)'A"M'AQ"Q=)?&"?'%$>ALG"=&"AQ$"$YA$%)=L"N=%A&"(<"AQ$"=NNL'=)>$">=)"
%$=>Q"A$CN$%=A@%$&"(<"C(%$"AQ=)"!EO_D*"
1Q'&"=NNL'=)>$"'&")(A"')A$)?$?"<(%"@&$"WG"N$%&()&"`')>L@?')I">Q'L?%$)a"M'AQ"%$?@>$?"NQG&'>=L["
&$)&(%G"(%"C$)A=L">=N=W'L'A'$&["(%"L=>X"(<"$YN$%'$)>$"=)?"X)(ML$?I$["@)L$&&"AQ$G"Q=K$"W$$)"
I'K$)"&@N$%K'&'()"(%"')&A%@>A'()">()>$%)')I"@&$"(<"AQ$"=NNL'=)>$"WG"="N$%&()"%$&N()&'WL$"<(%"
AQ$'%"&=<$AG*"
-Q'L?%$)"&Q(@L?"W$"&@N$%K'&$?"A("$)&@%$"AQ=A"AQ$G"?(")(A"NL=G"M'AQ"AQ$"=NNL'=)>$*"
7<"AQ$"&@NNLG">(%?"'&"?=C=I$?["'A"C@&A"W$"%$NL=>$?"WG"AQ$"C=)@<=>A@%$%["'A&"&$%K'>$"=I$)A"(%"
&'C'L=%LG"\@=L'<'$?"N$%&()&"')"(%?$%"A("=K('?"="Q=U=%?*"
1Q$"=NNL'=)>$"&Q=LL"W$"')&A=LL$?"')"=>>(%?=)>$"M'AQ"L(>=L"=)?"52-"M'%')I"%$I@L=A'()&*"

LEZETi CXI FCU _Manual Version 1.4
J"
"
'
CHAPTER 2
PERFORMANCE AND SPECIFICATION
CXI-34 Performance curve
(at 2.4GPM per each 12,000BTU) Temps in F
Heating capacity performance data and curve
Entering
water
Indoor air
95
104
113
122
131
140
63
2802
3556
4309
5062
6205
7348
64
2626
3375
4124
4873
6043
7214
66
2441
3194
3947
4701
5857
7014
68
2260
3013
3767
4520
5667
6814
70
2152
2897
3643
4388
5534
6680
72
2035
2778
3521
4264
5405
6546
73
1843
2599
3354
4109
5228
6346
75
1661
2417
3174
3930
5038
6146
Cooling capacity performance data and curve
Entering
Water
Indoor air
44
49
54
59
64
75.2/62.6
3135
2712
2381
2067
1778
77/64.4
3271
2830
2484
2156
1855
78.8/64.4
3376
2920
2564
2225
1914
80.6/67.1
3480
3010
2643
2294
1973
82.4/68
3615
3127
2746
2383
2050
84.2/69.8
3717
3215
2823
2450
2107
86/71.6
3828
3311
2907
2523
2170
1500
2000
2500
3000
3500
4000
75.2/62.6 77/64.4 78.8/64.4 80.6/67.1 82.4/68 84.2/69.8 86/71.6
Cooling capacity（Btu/h）
Indoor Air DB/WB（℉）
Performance curve
"Entering water 44℉"Entering water 49℉” Entering water 54℉
Entering water 59℉Entering water 64℉
1000
2000
3000
4000
5000
6000
7000
8000
62.6 64.4 66.2 68 69.8 71.6 73.4 75.2
Heatting capacity（Btu/h）
Indoor air temperature （℉）
Performance curve
Entering water 95℉Entering water104℉
Entering water 113℉Entering water122℉
Entering water 131℉Entering water 140℉

LEZETi CXI FCU _Manual Version 1.4
O"
"
CXI-34
The leaving water temperature data – Heating
Entering
water
Indoor air
95
104
113
122
131
140
63
87.0
93.9
100.8
107.6
113.4
119.1
64
87.5
94.4
101.3
108.1
113.8
119.5
66
88.1
94.9
101.8
108.6
114.3
120.1
68
88.6
95.4
102.3
109.2
114.9
120.6
70
88.9
95.8
102.6
109.5
115.3
121.0
72
89.2
96.1
103.0
109.9
115.6
121.4
73
89.8
96.6
103.5
110.3
116.1
122.0
75
90.3
97.1
104.0
110.8
116.7
122.5
The leaving water temperature data – Cooling
Entering
water
Indoor air
44
49
54
59
64
75.2/62.6
52.9
56.7
60.8
64.9
69.1
77/64.4
53.3
57.0
61.1
65.1
69.3
78.8/64.4
53.6
57.3
61.3
65.3
69.4
80.6/67.1
53.9
57.6
61.5
65.5
69.6
82.4/68
54.3
57.9
61.8
65.8
69.8
84.2/69.8
54.6
58.1
62.0
66.0
70.0
86/71.6
54.9
58.4
62.3
66.2
70.2
'
' '
80
90
100
110
120
130
62.6 64.4 66.2 68 69.8 71.6 73.4 75.2
The leaving water temperture
Indoor air temperature （℉）
Performance curve
Entering water 95℉
Entering water104℉
Entering water 113℉
Entering water122℉
Entering water 131℉
45
50
55
60
65
70
75
80
75.2/62.6 77/64.4 78.8/64.4 80.6/67.1 82.4/68 84.2/69.8 86/71.6
The leaving water temperture
Indoor air temperature （℉）
Performance curve
Entering water 44℉
Entering water49℉
Entering water 54℉
Entering water 59℉

LEZETi CXI FCU _Manual Version 1.4
R"
"
'
CXI-65 Performance curve
(at 2.4GPM per each 12,000BTU) Temps in F
Heating capacity performance data and curve
Entering
water
Indoor air
95
104
113
122
131
140
63
5270
6687
8103
9520
10535
11550
64
4939
6347
7755
9163
10252
11340
66
4590
6007
7423
8840
9933
11025
68
4250
5667
7083
8500
9605
10710
70
4047
5449
6851
8252
9376
10500
72
3827
5224
6621
8019
9154
10290
73
3467
4887
6307
7727
8851
9975
75
3123
4546
5969
7391
8526
9660
'
Cooling capacity performance data and curve
Entering
water
Indoor
air
44
49
54
59
64
75.2/62.6
5974
5167
4537
3938
3387
77/64.4
6232
5391
4733
4108
3533
78.8/64.4
6431
5563
4884
4240
3646
80.6/67.1
6630
5735
5035
4371
3759
82.4/68
6888
5958
5231
4541
3905
84.2/69.8
7081
6125
5378
4668
4014
86/71.6
7293
6308
5539
4808
4135
' '
3000
5000
7000
9000
11000
13000
62.6 64.4 66.2 68 69.8 71.6 73.4 75.2
Heatting capacity（Btu/h）
Indoor air temperature （℉）
Performance curve
Entering water 95℉Entering water104℉
Entering water 113℉Entering water122℉
Entering water 131℉Entering water 140℉
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
75.2/62.6 77/64.4 78.8/64.4 80.6/67.1 82.4/68 84.2/69.8 86/71.6
Cooling capacity（Btu/h）
Indoor Air DB/WB（℉）
Performance curve
"Entering water 44℉"Entering water 49℉”
Entering water 54℉Entering water 59℉

LEZETi CXI FCU _Manual Version 1.4
!S"
"
'
CXI-65
The leaving water temperature data – Heating
Entering
water
Indoor air
95
104
113
122
131
140
63
87.3
94.2
101.1
108.0
115.5
123.0
64
87.7
94.7
101.6
108.5
115.9
123.3
66
88.3
95.2
102.1
109.0
116.4
123.8
68
88.8
95.7
102.6
109.5
116.9
124.3
70
89.1
96.0
102.9
109.9
117.2
124.6
72
89.4
96.3
103.3
110.2
117.6
124.9
73
89.9
96.8
103.7
110.7
118.0
125.4
75
90.4
97.3
104.2
111.1
118.5
125.8
'
The leaving water temperature data – Cooling
Entering
water
Indoor
air
44
49
54
59
64
75.2/62.6
52.8
56.6
60.7
64.8
69.0
77/64.4
53.1
56.9
60.9
65.0
69.2
78.8/64.4
53.4
57.2
61.2
65.2
69.3
80.6/67.1
53.7
57.4
61.4
65.4
69.5
82.4/68
54.1
57.7
61.7
65.7
69.7
84.2/69.8
54.4
58.0
61.9
65.8
69.9
86/71.6
54.7
58.3
62.1
66.1
70.1
'
' '
80
90
100
110
120
130
62.6 64.4 66.2 68 69.8 71.6 73.4 75.2
The leaving water temperture
Indoor air temperature （℉）
Performance curve
Entering water 95℉
Entering water104℉
Entering water 113℉
Entering water122℉
50
60
70
80
90
100
110
120
130
62.6 64.4 66.2 68 69.8 71.6
Heatting capacity（Btu/h）
Indoor air temperature （℉）
Performance curve
50
55
60
65
70
75
80
75.2/62.6 77/64.4 78.8/64.4 80.6/67.1 82.4/68 84.2/69.8 86/71.6
The leaving water temperture
Indoor air temperature （℉）
Performance curve
Entering water 44℉
Entering water49℉
Entering water 54℉
Entering water 59℉