STA-RITE SR, SRC200 User Manual

Heater Insulation Kit
Sta-Rite Pool/Spa Group
293 Wright Street, Delavan, WI 53115
North America: 800-752-0183, FAX 800-582-2217 International: 262-728-5551, FAX: 262-728-4461, TELEX: ITT 4970245
www.sta-ritepool.com
Union City, TN • Delavan, WI • Mississauga, Ont. • Murrieta, CA
© 2003, Sta-Rite Industries, Inc. Printed in U.S.A. S430 (Rev. 2/14/03)
Tools/Parts Required
Flat Screwdriver, Phillips Screwdriver 1/4” and 3/8” Socket Sets with Extenders
Sockets needed:1/4”, 5/16, 11/32, 7/16, 1/2, 9/16, 7/8
Rubber Mallet To rque Wrench calibrated in Inch-Lbs. High Temperature RTV (600° F. Cont.; 700° F. Intermittent) Flame Holder/Adapter Plate Gaskets
(2 - Part No. 42001-0065)
14” & 12” Pipe Wrenchs (1 Each) or 2 Channel-Lock Pliers
Optional: Lifting Gear capable of handling 150 Lbs.
Safety Precautions:
Risk of electrical shock, fire or explosion.
Disconnect all power to the heater and close the external manual gas valve at start of this procedure. Check for gas leaks with a soapy water solution after reassembly.
Risk of carbon monoxide poisoning from
indoor units if exhaust vent joints are not sealed. Check
all vent joints for leakage after reassembly.
Heavy parts; can cause personal injury. When lifting, use all proper precautions for the weights involved.
Uncured RTV sealants can cause eye irrita­tion. Follow manufacturer’s instructions when using RTV
sealants.
Location
The Insulation is located inside the Combustion Chamber.
Function
The insulation increases the thermal efficiency of the heater and prevents overheating of parts outside the com­bustion chamber.
Servicing Procedure (See Figure 1):
Heavy parts; can cause personal injury. When lifting, use all proper precautions for the weights involved.
1. Turn off the filter pump and all electrical power to the
heater. Close the external Manual Gas Valve.
2. If the heater is below the water level of the pool, close
the isolation valves to avoid draining the pool.
3. Remove the drain plug under the manifold and drain
the heater.
4. While the heater is draining, remove the upper left and
upper right jacket halves.
5. Remove the switch covers on both sides of the mani-
fold and unplug the wires from the Automatic Gas Shutoff, the High Limit Thermostat, and the Thermistor (See Figure 2, Key No. 1). If necessary, disconnect the Water Pressure Switch and remove it.
6. Disconnect exhaust vent from indoor units.
7. Disconnect the gas pipe at the external union between
the heater and the external manual gas valve.
8. Disconnect the incoming electrical wires at the junction
box and cut the wire tie holding the Wiring Harness to the Lower Enclosure (See Figure 2, Key No. 2).
9. Disconnect the inlet and outlet unions and move the
heater enough to allow removal of the manifold adapter and the inlet/outlet manifold as a unit (See Figure 2, Key No. 3).
1/2" Insulation
OFF
ON
OFF
ON
Figure 1: Isolate and Drain Heater; Disconnect Power
2
Blanket
1" Insulation
Flameholder Insulation Cap
Condensate Evaporator
1" Insulation
1/2" Insulation Blanket
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Power
Combination Gas Control Valve OFF
Turn Clockwise and press down to turn off gas.
Manual/Gas Valve OFF
O N
FF O
VENT
PRESS
TAB
PILOT
O N
F F O
T
N E V
S S
PRE
B
TA
T O
PIL
Remove Water Pressure Switch to help Manifold Drain
Drain Inlet/Outlet Manifold
Inlet
Open
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Drain Cock(s) and Plugs OPEN
Close Isolation Valves
Outlet
3
10. Unscrew the bolts that attach the manifold adapter to the tube sheet and remove the manifold adapter and the inlet/outlet manifold as a unit.
11. Carefully disconnect all three metering tubes from the Combustion Air Blower Assembly (1 to the Combination Gas Control Valve, 2 to the Air Flow Switch).
12. Remove the bolt from the Gas Piping Clamp.
13. Unplug all wires to the Control Box. Unscrew three nuts and remove the Control Box, the Heat Shield, and the Membrane Pad and Cover as a unit (See Figure 2, Key No. 4).
14. Unscrew the four nuts holding the Blower Adapter Plate to the top of the Combustion Chamber and remove the Combustion Air Blower, the Igniter, the Combination Gas Valve and associated piping and the Blower Adapter Plate as a unit (See Figure 2, Key No.
5). Remove the Flameholder and Flameholder Cone (if used). NOTICE: BE CAREFUL not to break or crack the igniter – it is fragile!
15. Unscrew the nuts holding the Combustion Chamber top to the Combustion Chamber body.
16. Unscrew 4 hold-down nuts from the hangers support­ing the Combustion Chamber.
17. Wrap a shop rag around each hanger, one at a time (be careful; it’s sharp) and hammer down on the Lower Enclosure while lifting the hanger by the shop rag. This will lift the hanger up off of the hold-down bolt.
18. Lift the Combustion Chamber out of the Lower Enclosure.
Heavy parts; can cause personal injury. When lifting, use all proper precautions for the weights involved.
19. Cut the RTV all the way around the top of the
Combustion Chamber with a screwdriver.
20. With a mallet and screwdriver, go around the Combustion Chamber cover tapping up until the RTV separates and releases the Combustion Chamber cover. Be careful not to damage the Combustion Chamber.
21. Remove the Combustion Chamber cover.
California’s Proposition 65 lists Refractory Ceramic Fibers heated to 1800° F or higher as a possible human carcinogen. See the warning box
on Page 6 for further information. Call 1-800-752-0183 for a Material Data Safety Sheet (MSDS).
22. Remove the top insulation, the Heat Exchanger Coil, the Condensate Evaporator, the Bottom Insulation, and the metal spacer from the Combustion Chamber. Do not remove the RTV that seals the manifold mounting plate to the combustion chamber.
23. Clean up the Combustion Chamber, the Combustion Chamber cover, and the Spacer. Be sure to completely remove all RTV from the Combustion Chamber and Combustion Chamber top.
24. Reinstall the clean spacer in the Combustion Chamber. Install one 1/2” white Insulation Blanket on top of the spacer and one piece of 1” “M” insulation on top of the Blanket. Make sure that the insulation is centered in the Combustion Chamber.
NOTICE: Model SR/SRC200 heaters built before 1/1/98 require two 1/2” Insulation Blankets.
Figure 2: Removal of major sub-assemblies
1/2" Top Blanket
1" Top Insulation
1/2" Bottom Blanket
1" Bottom "M" Insulation
Flameholder Insulation Cap (Tape to bottom of Flameholder)
Spacer
Condensate Evaporator
Flameholder
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Figure 3: Correct order for installation of insulation.
5
4
2
3
1
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