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VELUX glass lined solar storage tank (with power vent gas backup)
• Glass Lined Steel Tank
• Two Protective Aluminum Anode Rods
• R-value of R-17
• Internal double wall glass coated steel solar heat exchanger
• Honeywell Self Diagnostic Gas Control (120 V.A.C.)
Solar water heating
B
C
D
VELUX solar storage tank dimensions
MODEL #
GAL
TFF 060 4205US
60
TFF 080 4205US
70
TFF 060 5205US
60
TFF 080 5205US
70
VELUX solar storage tank connections and weight
Solar heat exchanger
MODEL #
inlet/outlet connections
TFF 060 4205US
TFF 080 4205US
TFF 060 5205US
TFF 080 5205US
VELUX solar storage tank specs
Backup
MODEL #
fuel
TFF 060 4205US
Natural gas
TFF 080 4205US
Natural gas
TFF 060 5205US
LP
TFF 080 5205US
LP
Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into the potable side of this system. The potable side may NEVER be
connected to any existing heating system or component(s) previously used with a non-potable water heating appliance.
42 – Part 5: Specifications
A
G
F
E
A
B
24"
75"
26"
74
⁄
"
3
8
24"
75"
26"
74
⁄
"
3
8
Hot/cold potable water
connections
3/4" NPT
3/4" NPT
3/4" NPT
3/4" NPT
Backup
Solar HX
input rate
volume (gal)
(btu/h)
70,000
2.5 gal
76,000
2.5 gal
75,500
2.5 gal
76,000
2.5 gal
• Flammable Vapor Ignition Resistant technology (FVIR)
(TFF 060 4205 and TFF 060 5205)
• Backup Low NOx Burner – Comply with SCAQMD Rule 1121.
• T&P Relief Valve – Included
• Brass Drain Valve – Tamper proof
• Horizontal or Vertical venting with 3" or 4" PVC, ABS, or CPVC
Hot water
outlet
Gas control
sensor
Solar heat exchanger
Gas control valve
Back-Up
burner
Dimensions
C
D
59
⁄
"
11
⁄
"
1
3
2
8
59"
14
⁄
"
3
8
59
⁄
"
11
⁄
"
1
3
2
8
59"
14
⁄
"
3
8
Vent connection
3/4" NPT
3/4" NPT
3/4" NPT
3/4" NPT
Heated water
volume of
back up
77º rise
60 gal
70 gal
60 gal
70 gal
E
F
10
"
32
⁄
"
1/
1
8
4
12
⁄
"
34
⁄
"
1
5
2
8
10
"
32
⁄
"
1/
1
8
4
12
⁄
"
34
⁄
"
1
5
2
8
Shipping weight (lbs)
3" or 4"
4"
3" or 4"
4"
Recovery (gph)
First hour supply (gal)
90º rise
77º rise
88
75
130
96
82
145
94
80
136
95
81
144
Cold water inlet
Temperature and
pressure relief valve
Aluminum jacket
Surface mounted
solar sensor
Drain valve
G
53
⁄
"
1
2
52"
53
⁄
"
1
2
52"
281
336
281
336
90º rise
117
131
122
130
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