Steffes 9180 User Manual
Page 23
MOdEL 9180 (80kW Storage Module)
* Supply via stepdown transformer - field installed.
** Add approximately 500 lbs to arrive at shipping weight.
a
ppendix
a
ppendix
T
herm
e
lecT
h
ydronic
a
ppendix
A.02
a
ppendix
A.01
T
herm
e
lecT
h
ydronic
Input Voltage
240
120/208
120/240
277/480
347/600
Phase
1
3
3
3
3
Number of Wires
2
3
3
4
4
Charging Input
(kW)
80.0
72.0
80.0
75.6
80.0
Elements - Quantity
Elements - Watts Each
18
4,444
18
4,000
18
4,444
18
4,200
18
4,444
Amps – Core Charging
333.30
200.09
192.66
90.97
76.84
Maximum Pump & Blower Load
(AMPS)
4.6
4.6
4.6
2.3
1.9
Minimum Circuit Ampacity
422.38
255.86
246.57
116.59
98.43
Minimum Fuse Size
450
300
250
125
100
Maximum Fuse Size
450
300
300
150
125
Blowers/System Control Voltage*
240V/208V
Storage Capacity - kWh
Storage Capacity - BTU
480
1,637,760
Pipe Size
(Inlet/Outlet)
1 ½”
Required Primary Loop
Minimum of 12’ of 1 ½” pipe required in primary loop plumbing
Output Water Temperature
(selection range)
50
o
F to 185
o
F
Maximum Working Pressure
20 PSIG requires 30 PSI Pressure Relief Valve
60 PSIG requires 75 PSI Pressure Relief Valve (Standard)
125 PSIG requires 150 PSI Pressure Relief Valve
Minimum Flow Rate
(Primary Loop)
1 GPM per 10,000 BTU of required output at 20
o
F Temperature
Rise (30 GPM maximum)
Internal Pressure Drop
(assuming 50% glycol mix)
.7 ft @ 15 GPM
1.8 ft @ 25 GPM
1.2 ft @ 20 GPM
2.5 ft @ 30 GPM
Maximum Static Dissipation (Watts)
4,500
Approximate Heater Module Weight
(lbs)
970
Approximate Insulation Block / Elements /
Other Weight
(lbs)
400
Approximate Brick Weight
(lbs)
5,160
Number of Brick
288
Approximate Installed Weight
(lbs) **
6,530