ECR International 075 97gb, Installation, Operation & Maintenance Manual

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3.1 Component Listing
User Interface 1. (see Page 8) - Displays information
regarding boiler condition. Allows adjustment of
boiler operating parameters. NOTE: Does not replace
thermostat used to control central heating space.
Combustion Air Inlet (2" PVC)
2.
(see page 7 & 8)
Return Water From Heating System (In) 1-1/4" Return Water From Heating System (In) 1-1/4"
3.
NPT NPT (see pages 7 & 8) (see pages 7 & 8) - - Connections supplied to con- Connections supplied to con-
nection top and/or bottom of boiler. nection top and/or bottom of boiler.
Low Voltage Terminal Strip Low Voltage Terminal Strip
4.
(see pages 7 & 8) (see pages 7 & 8)
- Connection of all low voltage wiring, including - Connection of all low voltage wiring, including
thermostat. See section thermostat. See section 8. 8.
Igniter
5.
(see page 8)
Flame Sensor
6.
(see page 8)
Sight Glass
7.
(see page 8) - Permits observation of
burner fl ame.
Burner
8.
(see page 8)
Combustion Chamber
9.
(see page 8)
Condensate Collector
10.
(see page 8)
Return Temperature Sensor
11.
(see page 8)
Drain Valve
12.
(see page 8)
Heat Exchanger Ball Valve
13.
(see page 8)
Supply Water Outlet to Heating System (Out)
14.
1-1/4"NPT (see pages 7 & 8) - Connections supplied
for connecting from either top or bottom of boiler. See
section 5.
Vent Temperature Sensor 15. (see page 8)
Condensate Drain 16. (see page 8) - Boiler produces
a liquid (condensate) as a by-product of combustion.
Condensate must be piped to appropriate drain. See
section 6.
Heat Exchanger Pump Heat Exchanger Pump 17. (see page 8)
Gas Shutoff Valve Gas Shutoff Valve 18. (see page 8) - Fuel supply isolation - Fuel supply isolation
during servicing. See section 7 during servicing. See section 7
Combustion Air Blower Combustion Air Blower 19. (see page 8) - Delivers - Delivers
proper quantity of combustion air, receives fuel from proper quantity of combustion air, receives fuel from
gas valve, mixes air and fuel sending mixture to burner gas valve, mixes air and fuel sending mixture to burner
for combustion. for combustion.
Gas (Control) Valve Gas (Control) Valve
20.
(see page 8) - Delivers - Delivers
proper quantity of fuel to Combustion Air Blower. proper quantity of fuel to Combustion Air Blower.
See section 7. See section 7.
High Temperature Supply Switch High Temperature Supply Switch
21.
(see page 8)
Low Water Cutoff Low Water Cutoff
22.
(see page 8) -- Senses inadequate Senses inadequate
quantity of water. Turns off boiler before damage can quantity of water. Turns off boiler before damage can
occur (with test button). occur (with test button).
Safety Relief Valve
23.
(see page 8) - Factory supplied,
Field installed. See section 5.
High Voltage Junction Box
24.
(see page 8) - For
connection of 120V components. See section 88.
Vent Connector (2" PVC)
25.
(see pages 7 & 8) - See
section 6.
Gas Connection Gas Connection
26.
(see page 7) - Gas supply may be - Gas supply may be
piped either through top or bottom of boiler. See piped either through top or bottom of boiler. See
section 7. section 7.
Bracket for Optional Wall Mount
27.
(see page 7) -
Integral to boiler. Allows optional wall mounting when
used with supplied wall mounting bracket. See section 4.
Auxiliary Power Outlet
28.
(see page 7) - Convenience
outlet for condensate pump or service. Controlled by
Service Switch (29)
Service Switch
29.
(see page 7)
Air Vent
30.
(see page 7)
Central Heating Pump Circuit Breaker
31.
(see page 7)
5 amp circuit breaker protects control module.
Control Module Control Module
32.
(see page 9)
Internal Access Panel
33.
(see page 9) - Gently pull
upward then forward to access control module.
Removable for access to internal components of boiler.
Central Heating Pump Relay
34.
(see page 9)
Transformer
35.
(see page 9) - Supplies 24V power to low
water cutoff.
Pressure Switch 36. (not shown)
Test Port
37.
- (see page 8)
Combustion Analysis Test Port 38. - (see page 8)
3 - COMPONENT LISTING