Additional Information; Technical Data - Viessmann VITOCROSSAL 300 Installation Instructions Manual

Additional Information

Technical Data

Boiler Model No. CU3A
Natural Gas / Liquid Propane Gas
CSA input
CSA output / DOE heating capacity*1
Net AHRI Rating
Heat exchanger surface area
Min. gas supply pressure
Natural gas
Liquid propane gas
Max. gas supply pressure *3
Natural gas
Liquid propane gas
A.F.U.E.
Weight
Boiler water content
Max. operating pressure
at 210ºF (99ºC)
Boiler water temperature
- Adjustable high limit (AHL) range
space heating (steady state)
DHW production
- Fixed high limit (FHL)
Boiler connections
Boiler heating supply and return
Pressure relief valve
Boiler drain
Gas valve connection
*1 Output based on 140ºF (60ºC), 120ºF (49ºC) system supply/return temperature.
*2 Net AHRI rating based on piping and pick-up allowance of 1.15.
*3 If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator
must be installed upstream of the heating system.
Note: For high altitude installation at 10,000 ft. the input for model Vitocrossal 300 CU3A will have an altitude
de-ration of 18%.
50
26
MBH
19-94
(kW)
(5.6-27.5)
MBH
17.7-87
(kW)
(5.2-25.5)
MBH 76
(kW) (22)
2
ft. 16.7
2
(m ) (1.5)
"w.c. 4
"w.c. 10
"w.c. 14
"w.c. 14
% 95
lbs 269
(kg) (122)
USG 13.5
(L) (51)
psig 30
(bar) (2)
ºF 68-194
(ºC) (20-90)
ºF 194
(ºC) (90)
ºF 210
(ºC) (99)
NPTM 1a"
NPTF ¾
"
1
"
NPTM
¾
"
NPTF
Vitocrossal 300 CU3A 26 to 57 Installation
35 45
25-125 43-160
(7.3-36.6) (12.6-47)
23.3-116 40-149
(6.8-34) (11.7-43.7)
101 129
(30) (38)
20.7 34.1
(1.9) (3.2)
4 4
10 10
14 14
14 14
95 95
275 352
(125) (160)
13.0 18.8
(49) (71)
30 30
(2) (2)
68-194 68-194
(20-90) (20-90)
194 194
(90) (90)
210 210
(99) (99)
1a" 1a"
¾ ¾
" "
1 1
" "
¾ ¾
" "
57
43-199
(12.6-58)
40-185
(11.7-54.2)
161
(47)
34.1
(3.2)
4
10
14
14
95
352
(160)
18.8
(71)
30
(2)
68-194
(20-90)
194
(90)
210
(99)
1a"
¾
"
1
"
¾
"