Thermal Solutions APEX APX425C - Page 6

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106308-05 - 3/23
APEX Installation, Operating, & Service Instructions
Figure 1-4: Apex - Model APX525C
16
7 8
"
2
1 4
"
35
1
16
"
20
5
16
"
12
3 8
"
8
5
16
"
5
3 8
"
'C'
'E'
'D'
'A'
8
1 8
"
2
9
16
"
5
1 2
"
1
1 4
"
15
1 2
"
4" CPVC/PP/SS VENT CONNECTOR
'H' 2" MPT
RETURN TAPPING
'J' 2" MPT SUPPLY
TAPPING
'K'
CONDENSATE DRAIN
'G'
GAS VALVE INLET
LINE VOLTAGE
KNOCKOUTS
(120 VOLTS)
LOW VOLTAGE
KNOCKOUTS
(24 VOLTS)
ACCESS PANEL ACCESS PANEL
ACCESS PANEL
ACCESS PANEL
ACCESS PANEL
4" PVC COMBUSTION AIR CONNECTOR
1 Product Description, Specifications and Dimensional Data (continued)