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Table 1: Boiler specifications 240* Vac/1ph (3 wires L1/L2/N):
Model
COMBOMAX ULTRA 12-4.5
COMBOMAX ULTRA 12-6
COMBOMAX ULTRA 12-7.5
COMBOMAX ULTRA 12-9
COMBOMAX ULTRA 12-12
*Can be also connected on an electrical supply at 208V/1ph giving 75% of the nominal capacity at 240V.
**Add amperage of the pump when required (5amp./1/6hp max). Local Electrical codes may require
different cable gauge according to the type of installation.
Maximum operating pressure on the tank: 207kPa / 30psi
Tank temperature range : 10
Maximum pressure domestic water: 1033kpa (150psi)
Maximum domestic hot water temperature : 82
Table 2 : Dimensions:
Height :
1537mm (60-1/2'')
With :
559 mm (22'')
Depth :
625 mm (25-1/2'')
Plumbing connections :
Fresh water inlet :
o
Domestic hot water outlet : 3/4"NPT F
o
Expansion tank :
o
Heating, supply :
o
Heating return :
o
COMBOMAX™ Installation, use and care manual
Section 1 : Technical specifications
Power
kW/Mbtu à
240v
4,5 / 15,3
6 / 20.5
7,5 / 25,6
9 / 30,7
12 / 41
o
o
C to 90
C (50
3/4"NPT F
1/2"NPT M
1'' NPT F
1'' NPT F
Electric
Current
heating
draw
elements
à 240v
1 x 4,5kW
2x3kW
1x4.5+1x3kW
2x4,5kW
2x6kW
o
o
F to 190
F)
o
o
C (180
F)
,
(Revision Sept. 2013)
Suggested
electrical cable
at 240V**
cu
al
10
19
12
6
25
8
6
31
8
6
38
8
6
50
6
Fuse size
25
40
40
50
70
2.
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