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Natural Gas Supply Piping
Maximum Capacity of Natural Gas Based on a 0.60 specific gravity at a 0.5” WC pressure drop
Pipe Size
kBTU of Natural Gas
Length 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ 100’ 125’
150’
200’
¾”
372 255 205 175 156 142 130 121 114 107 95 86 74
1”
702 482 387 331 293 266 245 228 213 202 179 162 139
1
¼” 1441 990 795 680 603 546 503 468 439 415 367 332 285
1
½” 2158 1483 1191 1019 903 819 753 701 658 621 550 499 427
2”
4155 2856 2293 1963 1740 1576 1450 1349 1266 1195 1060 960 822
Propane (LP) Gas Supply Piping
Maximum Capacity of Propane (LP) Gas Based on 11” WC supply pressure at a 1.0” WC pressure drop
Pipe Size
kBTU of Propane
Length 10’ 20’ 30’ 40’ 50’ 60’ 70’ 80’ 90’ 100’ 125’ 150’ 200’
¾”
567 393 315 267 237 217 196 185 173 162 146 132 112
1” 1071 732 590 504 448 409 378 346 322 307 275 252 213
1
¼” 2205
1496
1212 1039 913 834 771 724 677 630 567 511 440
1
½” 3307
2299
1858 1559 1417 1275 1181 1086 1023
976 866 787 675
2”
6221 4331 3465 2992 2646 2394 2205 2047 1921 1811 1606 1496 1260
WATER CONNECTIONS
All pipes, pipe fittings, valves and other
components, including soldering materials,
must be suitable for potable water systems. A
manual shut off valve must be installed on the
cold water inlet to the appliance between the
main water supply line and the T-H1. In
addition, a manual shut off valve is also
recommended on the hot water outlet of the
unit. If the T-H1 is installed within, or subjected
to, a closed loop water system, such as one
having an anti-backflow device in the cold
water supply line, a thermal expansion tank
must be installed. Contact the water supplier or
local plumbing inspector on how to control this
situation.
After installation of the appliance is complete,
purge the water line to remove all the debris
and air from the line. Failure to do so may
cause damage to the appliance. There is a
wire mesh filter within the cold inlet to trap
debris from entering your appliance. This will
need to be cleaned periodically to maintain
optimum flow.
Unit Draining & Filter Cleaning Procedures
To drain your unit, please follow these
instructions carefully:
1. Turn off the power supply to the T-H1
Appliance.
2. Close the manual gas shut off valve
located on the gas supply line.
3. Close the manual water shut off valve
located on the water supply line.
4. Open all hot water taps in the house.
(Bathroom, kitchen, laundry room, etc.).
When the residual water flow has ceased,
close all hot water taps.
5. Have a bucket or pan to catch the water
from the unit’s drain plugs. Remove the
drain plugs to drain all the water out of the
unit.
6. Wait a few minutes to ensure all water has
drained from unit.
7. At this time, please check the water filter
located within the cold inlet. With a tiny
brush, clean the water filter of any debris
which may have accumulated and reinsert
the filter back into the cold water inlet.
8. Securely screw the drain plugs back into
place. Hand- tighten only
Do not use this appliance if any part has
been submersed under water.
Immediately call a qualified service
technician to inspect the appliance and to
replace any damaged parts.
FOR YOUR SAFETY, READ
BEFORE OPERATING:
