Installation Manual
Table Of Contents
- Contents
- 1 Safety Considerations and Symbol Descriptions
- 2 Product description
- 3 Moving the boiler
- 4 Installing the boiler
- 5 Installing the boiler
- 6 Commissioning the heating system
- 6.1 Bringing the system up to operating pressure
- 6.2 Checking the safety valve
- 6.3 Checking position of heat exchanger baffles
- 6.4 Preparing the heating system for operation
- 6.5 Starting up the control and the burner
- 6.6 Notes on commissioning the burner
- 6.7 Raising flue gas temperature
- 6.8 Manual reset high limit (STB)
- 6.9 Installing the burner door jacket
- 6.10 Commissioning log
- 7 Shutting down the heating system
- 8 Heating system servicing
- 9 Troubleshooting
- 10 Installation examples
- 11 Parts lists
- 12 Circuit diagrams
- Index
12
Circuit diagrams
Logano G115 WS US/CA – 6 720 813 418 (2019/09) 51
Fig. 49 Circuit diagram 2
Carlin EZ-1 HP Burner Wiring with L7248C Aquastat
T
B1
Honeywell
Operating
Aquastat
(L7248C1006)
Carlin EZ-1 Wiring Schematic -
The Carlin EZ-1 Burner is equipped with the 70200 Series Primary Control with pre-purge.
Using a L7248C Aquastat –
1) Connect room thermostat or end switch wiring to the T & T terminals of the L7248C Aquastat.
Note: DO NOT CONNECT ROOM THERMOSTAT TO THE T – T TERMINALS OF THE CARLIN 70200 Control!
2) Connect 120 Vac power source to L1 on the L7248C aquastat.
3) Connect neutral source to L2 on the aquastat.
4) Connect red wire from wire harness to L1 on the L7248C (the red/white wire on the Carlin 70200 Control)
.
5) Connect black wire from wire harness to B1 on the L7248C (the black wire on the Carlin 70200 Control)
.
6) Connect white wire from wire harness to B2 on the L7248C ( the white wire on the Carlin 70200 Control)
.
7) Connect green wire to ground screw on the L7248C and to the ground connection on the Carlin Burner
.
8) Install a jumper wire on the T T terminals of the 70200 Control.
CCT 70200 Series Primary Control
Field
installed
jumper
Field wiring
Factory wired
Low Voltage
Field installed
Quick
connect
plug
T
F
F
CAD
Cell Eye
Red wire
Black wire
White wire
Green wire
Ground
Ground
T
Thermostat,
aquastat, or end
switch,
C1
C2
L1
B2
L2
Fuse
Service
Switch
N
Neutral
L
Hot
T
BV
BV
A
A
L2
WMO-1*)
L1 IN
L1 OUT
LIMIT
MOTOR
VALVE
IGNITION