LAARS 9600 CB - Installation, Operation and Maintenance Instructions - Manual (Page 11)

9600 CB
Page 11
1.14 Condensate Drain Connection
NOTE: Connecting tubing must run DOWNWARDS
from the level of the fitting (see Figure 11).
a. Black plastic tube between the fitting and the
floor drain or optional condensate pump (P/N
A2110100) if a floor drain is not accessible.
b. Above the fitting is a hole in the cabinet. Behind
this hole is a 1/2" OD tube which serves as a
condensate relief if the lower drain becomes
blocked.
c. Run this condensate relief tube through hole in
cabinet and to a drain pan. DO NOT pipe in
common with Condensate drain fitted in Step 1
above.
1.15 Electrical Connections
All electrical wiring must conform to local codes
and/or:
a. the National Electrical Code ANSI/NFPA No.
70-Latest Edition or
b. the CSA standard C22.1 "Canadian Electrical
Code Part - 1".
Single pole switches, including those of safety
controls and protective devices must not be wired in a
grounded line.
All electrical connections are made in the field
wiring box which is located on the left side of the
unit.
NOTE: All internal electrical components have been
prewired. No attempt should be made to connect
electrical wires to any other location except the wiring
box designated above.
Wiring connections are indicated on the
following wiring diagram (see Figure 14).
1.16 Main Power
Connect a 15 amp. fused, 120-volt supply to the
main power switch (hot leg is connected directly to
switch). Neutral leg is connected directly to the white
wire. Ground wire can be connected to the grounding
screw in the box or on the switch.
1.17Temperature Control
NOTE: Connect boiler T-T wires to isolated contacts on
zone valves, circulating relays, sequencing controls
(multiple unit applications) or other temperature
controlled devices. DO NOT JUMPER. If connected to a
room thermostat set heat anticipator at 0.9 amps.
1.18 Start Up - Filling the System
a. Open all supply valves and return valves.
b. Fill CB boiler and the system completely.
c. Set thermostat to call for heat, turn on power at
main switch for 30 seconds, then turn off.
d. After system is fully purged, the CB boiler is
ready for firing.
Figure 13. Condensate drain tube outlet. Figure 14. Electrical connections.
automatic fill valve and the cold water supply.
c. Install shut off valves where required.
NOTE: The boiler, when used in connection with a
refrigeration system, must be installed so the chilled
medium is piped in parallel with the boiler with
appropriate valves to prevent the chilled medium from
entering the boiler.
The boiler piping system of a hot water heating
boiler connected to heating coils located in air
handling units where they may be exposed to
refrigerated air circulation must be equipped with
flow control valves or other automatic means to
prevent gravity circulation of the boiler water during
the cooling cycle.
The boiler when installed above the radiation
level must be provided with a low water cutoff device
at the time of boiler installation.