Troubleshooting guide

PV500-17 07/13 Section 17
2
MAXIM
INTEGRATED WATER HEATING SYSTEM
TYPICAL CONSTRUCTION - MX MODEL
FIGURE 17-1
1. VENT STACK * 8. HANDHOLE CLEANOUT
2. TEMPERATURE LIMITING DEVICE (set at 200°F) 9. UPPER OPERATING THERMOSTAT (set at 130°F)
3. OPERATING THERMOSTAT (set at 120°F) 10. COLD WATER INLET & RETURN CONNECTION
4. CONTROL SWITCH(es) AND FUSE(s) 11. DRAIN
5. GAS VALVE 12. RELIEF VALVE
6. GAS INLET 13. PRIMARY SAFETY CONTROL
7. BURNER (MX model shown) 14. DIFFERENTIAL AIR PROVING SWITCH
(* NOT FURNISHED BY PVI)
WARNING! Temperatures higher than 125°F increase the risk of scald injury!
IMPORTANT! Clearance to unprotected combustible material must be 8"min. at top, sides and rear, and
24" min. in front.