Raypak B-206A-MN-C ASME User manual

Digital Gas Heater
Tool Box Quick Reference Guide

Water Chemistry
GENERAL
Recommended Levels Fiberglass Pools Fiberglass Spas Other Pool & Spa Types
Water Temp. (Deg. F) 68 to 88 89 to 104 68 to 104
pH 7.3 to 7.4 7.3 to 7.4 7.6 to 7.8
Total Alkalinity (PPM) 120 to 150 120 to 150 80 to 120
Calcium Hardness (PPM) 200 to 300 150 to 200 200 to 400
Salt (PPM) 4500 MAXIMUM 4500 MAXIMUM 4500 MAXIMUM
Free Chlorine (PPM)22 to 3 2 to 3 2 to 3
Total Dissolved Solids (PPM) 3000 MAXIMUM33000 MAXIMUM33000 MAXIMUM3
For your health and the protection of your pool equipment, it is essential that your water be chemically balanced1.
The following levels must be used as a guide for balanced water.
1 Damage from corrosive water is not covered under warranty. Consult your product manual for more information.
2 Free Chlorine MUST NOT EXCEED 5PPM.
3 In salt water chlorinated pools, the total TDS can be as high as 6000PPM.
• Occasional chemical shock dosing of the pool or spa water should not damage the heater providing the water is
balanced.
• Automaticchemicaldosingdevicesandsaltchlorinatorsareusuallymoreecientinheatedwater,unlesscontrolled,
they can lead to excessive chlorine level which can damage your heater.
• Further advice should be obtained from your pool or spa builder, accredited pool shop, or chemical supplier for the
correct levels for your water.
• Warning: Electrolytic Corrosion and pH instability may be present with salt chlorinated pools.
2

Model Number and Serial Number Location
Before you call Raypak service, make sure you have the MODEL NUMBER and SERIAL NUMBER.
Model & Serial
number can also
be found inside the
control panel above
digital display.
Model & Serial
number located
on rating plate.
Model & Serial number located on
carton label.
GENERAL
3

Minimum Clearances
CLEARANCES
FLOORING: THIS UNIT CAN BE INSTALLED ON COMBUSTIBLE FLOORING. DO NOT INSTALL ON CARPET.
4
INDOOR
View in. (mm)
TOP (above Drafthood) 30 (762)
WATER SIDE 18 (456)
OPPOSITE SIDE 6 (152)
FRONT (Alcove) Open
BACK 6 (152)
FLOOR 0
OUTDOOR
View in. (mm)
TOP (Stackless) 36 (914)
WATER SIDE 18 (456)
OPPOSITE SIDE 6 (152)
BACK 6 (152)
FLOOR 0
See product manual for more information.

Minimum Clearances* – Outdoor
Forced Air Inlet
4' (1.2 m)
Minimum
3' (0.9 m)
Minimum
10' (3 m)
Minimum
1' (0.3 m)
Minimum
4' (1.2 m)
Minimum
4' (1.2 m)
Minimum
DO NOT install near
sprinklers.
DO NOT install within
3 feet of a heat pump
pool heater or air
conditioning
condensing unit.
*Check state and local codes
before proceeding. The
minimum clearances provided
aredenedbyNFGC(National
Fuel Gas Code).
CLEARANCES
5

Minimum Clearances – Indoor
CLEARANCES
VENT CAP
2' MIN (0.6 m)
VENT PIPE
DRAFT HOOD
VENTILATION
AIR OPENING
5' MIN
(1.5 m)
HEATER
2' MIN
(0.6 m)
8' (2.4 m)
OR LESS
COMBUSTION
AIR OPENING
The heater must have both combustion air and
ventilation air.
• Ventilation air opening 12”(305 mm) max from the ceiling
• Combustionairopening12”(305mm)maxfromtheoor
All air from outdoors, each opening shall have a net free
area as shown in table.
Model
Unrestricted
Opening
Sq. In. (m2)
Typical
Screened or
Louvered
opening
Sq. In. (m2)
Typical
Screened and
Louvered
opening
Sq. In. (m2)
206/207 50 (0.03) 75 (0.05) 100 (0.06)
266/267 67 (0.04) 101 (0.06) 134 (0.09)
336/337 84 (0.05) 126 (0.08) 168 (0.11)
406/407 100 (0.06) 150 (0.1) 200 (0.13)
Check state and local codes before proceeding. Some states do not recognize the NFGC and require larger openings.
6

Gas Line Sizing
Maximum Equivalent Pipe Length
Natural Gas 1000 BTU/FT3
0.60SpecicGravity@0.5in.WCPressureDrop
Propane Gas 2500 BTU/FT3
1.53SpecicGravity@0.5in.WCPressureDrop
Model
Input 3/4” 1” 1-1/4” 1-1/2”
(KBTU) N P N P N P N P
206/207 199.5 25 60 90 215 360
266/267 266.0 15 35 50 125 210 480 445
336/337 332.5 10 20 30 80 140 320 290
406/407 399.0 15 20 55 95 225 215 480
GAS SUPPLY
EFFECTS OF LOW GAS PRESSURE
• Pulsatingburnerame
• DelayIgnition/Hardlighto
• Pilot won’t light
• Exposure to condensation
• Emissions not at compliance levels
• Damage to Low NOxburners
7

Gas Pressure Test
Gas Unit
Type
Supply Pressure Manifold
Pressure
Min. Max.
Nat ATM 6” 10.5” 4.0”
Low NOx5” 10.5” 3.1”
Pro ATM 12” 13” 10.5”
GAS SUPPLY
0
1
2
3
4
5
6
1
2
3
4
5
6
TO
BURNER
MANIFOLD
SLACK TUBE
MANOMETER
(INDICATES 8" W.C. AS SHOWN)
MANIFOLD
GAS PRESSURE
INLET GAS PRESSURE
GAS
VALVE
• Supply pressures given are under load
(dynamic)
• 1 PSI = 27.7” Water Column
• Propane requires an external “pounds
to inches regulator”
8

Gas Line Sediment Trap
GAS SUPPLY
Check state and local codes before proceeding. Some states do not recognize the NFGC.
GAS
VALVE
RISER
REDUCER
GAS
COCK
(WITHIN 6 FEET
OF THE HEATER)
CORRECT
PROVIDE CHANGE OF DIRECTION IN GAS FLOW
AS CLOSE AS
PRACTICAL TO HEATER
UNION
GAS
VALVE
RISER
REDUCER
INCORRECT
AS CLOSE AS
PRACTICAL TO HEATER
GAS
COCK
(WITHIN 6 FEET
OF THE HEATER)
UNION
Sediment Trap should be located as close
to the inlet of the appliance as practical.
9

ELECTRICAL
Power Connections
Note: Heater will not work properly if wired to a 208VAC power source.
10