A.O. Smith 960 through 967 - Manual (Page 43)

BTH S E R V I C E H A N D B O O K
S E R V I C E C H E C K L I S T
SERVICE CHECKLIST
This is not intended to be and all-inclusive list of the problem that the Service Agent may encounter. Any item checked “no” on
this list should be thoroughly investigated and corrective action taken, if required.
SERVICE AGENT:
MODEL NUMBER:
SERIAL NUMBER:
GAS TYPE —CHECK ONE
NATURAL
PROPANE ---------------
PROPER GAS VALUE VERIFIED
CHECK CLEARANCE (CIRCLE ANSWER)
A. Are exterior clearances adequate?
B. Are interior clearances adequate?
Comments:
YES
INSTALLATION DATE:
SERVICE DATE:
LOCATION ADDRESS:
PHONE ( )
NO
CHECK MAKEUP AIR REQUIREMENTS
A. Is the quality of make-up air adequate?
Comments:
B. Is the quantity of make-up air adequate?
Comments:
GAS PRESSURE (FILL IN BLANK) — ALL UNITS ON.
A. Supply gas pressure_inches of W.C. (flowing)
B. Manifold gas pressure (main burner)_inches of W.C. (flowing)
Comments:
IV. VENTING (CHECK)
A. Acceptable equivalent footage
B. Proper material
C. Proper exterior installation
D. Condensate will drain
Comments:
V. WATER PIPING
Is the system properly sized?
Is the system properly installed?
Are there any water leaks?
Does the installation have a recirculating system?
If so, is it operational?
SAFETY
VI.
A. Air
B.
If exhaust is blocked will unit lockout?
If air intake is blocked will unit lockout?
Water Temperature
- Is the thermostat adjusted to the lowest acceptable temperature?
- Does the installation have a mixing valve?
- If so, is it operational?
- What is the outlet temperature of the mixing valve?
NOTE: To minimize the risk of scalding, the manufacturer recommends storing water at 120° F.
Is a properly rated temperature and pressure relief valve installed?
Is there a properly installed expansion tank?
Should there be?
C.
Electrical
Is the 120 VAC electrical powers supply properly wired? (including polarity)
Are all the BTH control covers in place?
Is the 120 VAC electrical power supply properly fused?
D. Flammables
Are flammable materials located in the area of the water heater? or air intake?
Are flammable vapors located in the area of the water heater? or air intake?
E. Gas
If the gas supply is reduced or turned off will the unit turn off?
Comments:
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
yes no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
[This service checklist may be photo copied to assist with BTH service calls.]
Technical Training Department
TC-044 Revision 6
42
A. O. Smith Water Products Co.
Ashiand City, Tennessee © 2004