Lynx Combi Boiler 7
DO ESTIC HOT WATER
Lynx combi boilers are designed to provide
virtually instant
domestic hot water for domestic purposes.
The combi boilers are set for DHW priority. The DHW circulator
is sized to provide adequate hot water production. A flow
switch is provided to detect domestic water flow and to ener-
gize the DHW circulator. It also gives a call for the burner to
operate as required for the demand. inimum flow rate
required to activate DHW system is 0.3 GP .
Hot water temperature to the fixtures depends to the following
parameter:
a.Temperature of the incoming cold water
b. Tempering valve setting
c. Total water flow rate (see table below)
d.Boiler supply water temperature to domestic hot water
production system (“d”), “d” value is settable from
104˚F to 185˚F (see table 2)
ANNUAL SERVICE AND GENERAL AINTENANCE
A trained and qualified service technician should
perform inspection and general maintenance listed in
Installation and Operating Instructions (Publication No.
LX1-40) before each heating season and at regular
intervals.
SAFETY AND OPERATING INSTRUCTIONS
Follow the lighting instructions in this manual. These
instructions are also attached to the boiler.
SAFETY INFOR ATION
For Your Safety Read Before Operating
A. This appliance does not have a pilot. It is equipped with
an ignition device which automatically lights the burner.
Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
HAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
•Do not touch any electric switch: do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to turn the gas supply shut off
valve. Never use tools. If the supply shut off will not turn
by hand, don’t try to repair it, call a qualified service
technician. Force or attempted repair may result in a
fire or explosion.
D. DO NOT use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device
which automatically lights the burner. Do not try to light
the burner by hand.
5. Open the gas supply shut off valve, by turning the
handle to be parallel to the gas piping. (See Figure 8).
6. Wait five (5) minutes (longer for propane) to clear out
any gas, then smell for gas, including near the floor. If
you then smell gas, STOP! Follow “B” in the safety
information above on this page. If you don’t smell gas,
go to next step.
7. Turn on all electric power to the appliance.
8. Set thermostat to desired setting.
If the appliance will not operate, follow the instructions
“To Turn Off Gas to Appliance” and call your service
technician or gas supplier.
To Turn Off Gas to Appliance
1. Set thermostat to lowest setting.
2. Turn off all electric power to the appliance if service
is to be performed.
3. Close the gas supply shut off valve, by turning the
handle to be perpendicular to the gas piping.
(See Figure 8).
WARNING: If you do not follow these instructions exactly, a
fire or explosion may result causing property damage,
personal injury or loss of life.
GAS SUPPLY SHUTOFF VALVE
IN “OPEN” POSITION
GAS SUPPLY SHUTOFF VALVE
IN “CLOSED” POSITION
TURN 90˚
TO CLOSE
TURN 90˚
TO OPEN
Figure 8.
DH teperature rise vs. water flow
Temperature
Rise, ˚F
DHW Flow Rate, GP
LX-120CB LX-150CB
100
80
70
60
55
2.0
2.5
3.0
3.5
4.0
2.3
3.3
4.0
4.5
5.0
