Viessmann AWT 221.A04, Installation And Service Instructions For Contractors

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Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13
Connections
Heating water flow mm Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1
Heating water return mm Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1
Cold water Rp
¾ ¾ ¾ ¾ ¾
DHW Rp
¾ ¾ ¾ ¾ ¾
DHW circulation G 1 1 1 1 1
Liquid line
■
Pipe
7
mm 6 x 1 10 x 1 10 x 1 10 x 1 10 x 1
■
Internal unit UNF
⅝ ⅝ ⅝ ⅝ ⅝
■
External unit UNF
⁷
⁄
₁₆
⅝ ⅝ ⅝ ⅝
Hot gas line
■
Pipe
7
mm 12 x 1 16 x 1 16 x 1 16 x 1 16 x 1
■
Internal unit UNF
⅞ ⅞ ⅞ ⅞ ⅞
■
External unit UNF
¾ ⅞ ⅞ ⅞ ⅞
Max. line length, liquid line, hot
gas line m 20 30 30 30 30
Sound power of external unit at rated
heating output
(measurements with reference to EN 12102/
EN ISO 9614-2)
Weighted total sound power level
■ At A7 ±
3 K
/W55 ±
5 K dB(A) 60 57 62 62 63
■
At A7 ± 3 K /W55 ± 5 K in night mode dB(A)
58 55 58 60 60
Energy efficiency class to EU
Regulation no. 811/2013
Heating, average climatic condi-
tions
■
Low temperature applications
(W35)
A
++
A
++
A
++
A
++
A
++
■
Medium temperature applica-
tions (W55)
A
+
A
+
A
+
A
+
A
+
DHW heating
■
Draw-off profile L A A A
■
Draw-off profile XL A A
400 V appliances
Type AWT/AWT-AC
221.B10 221.B13 221.B16
Heating output data to EN 14511
(A2/W35)
Rated heating output kW 7.50 9.06 11.3
Fan speed rpm 600 690 690
Power consumption kW 1.76 2.42 3.11
Coefficient of performance
ε
(COP) in heating mode
4.27 3.72 3.66
Output control kW 2.73 to 10.92 3.30 to 12.29 4.6 to 13.4
Specification
Specification
(cont.)
5776 028 GB
Appendix