Cambridge Air Solutions
54
S-Series Technical Manual
START-UP INSTRUCTIONS
START-UP PROCEDURE
1. Visual Inspection Of Equipment
(page 54)
2. Electrical Supply Voltage Verification
(page 54)
3. Gas Supply Pressure Verification
(page 54)
4. Blower Rotation Check
(page 55)
5. Motor Amp Draw Check
(page 55)
6. Burner Manifold Pressure Adjustment
(page 55)
7. Minimum Fire Adjustment
(page 56)
8. Calibration Check
(page 57)
9. Gas Train Leak Check
(page 58)
10. Gas Valve Leak Check
(page 58)
11. Final Heater Preparation
(page 59)
12. Remote Control Station Check
(page 59)
After start-up, please complete and fax the S-Series
Start Up Checklist to the Cambridge Customer
Service Group. Receipt of a completed checklist
will extend the start date for your warranty period to
the date of the start-up but not to exceed six months
from date of shipment.
IMPORTANT
Read the following instructions carefully. Any
unauthorized modifications to or deviations from
these instructions will void the warranty.
1. VISUAL INSPECTION OF EQUIPMENT
a. Check for any physical damage from shipping or
installation that could render the heater inoperable.
b. Verify that all heater accessories and filters (if
applicable) have been properly installed.
c. Check for loose components (belts, plugs, screws,
blower wheel lugs, etc.).
d. On units with external gas trains, verify that the
distance from the last safety shut-off valve to the
heater does not exceed four feet.
e. Verify that the field wiring, both primary and
control, has been installed according to the
Cambridge wiring diagram, National Electrical
Code, and local electrical codes.
f. Verify that a sediment trap has been installed
upstream of all gas controls.
g. Verify that the high pressure regulator, if
applicable, has been vented to the outside at least
10' from the heater intake.
h. Verify that the unions in the gas piping located at
the burner and just external to the heater housing,
are tight.
2. ELECTRICAL SUPPLY VOLTAGE
VERIFICATION
Check the electrical supply voltage at the disconnect
switch.
IMPORTANT
Do not proceed with start-up unless the supply
voltage agrees with the nameplate voltage. If the
supply voltage does not agree with the nameplate
voltage, check with your local agent or Cambridge
Air Solutions' Customer Service Group at
1-800-473-
4569
to determine what changes are required.
3. GAS SUPPLY PRESSURE
VERIFICATION
Check the gas supply pressure.
IMPORTANT
Do not proceed with start-up unless the gas
supply pressure agrees with nameplate pressure
requirements. If the gas supply pressure is in excess
of the maximum pressure indicated, a separate
