Raypak 1005 Combined Potable Water and Space Heating, Pool Heating

NOTE: If local codes require a vacuum relief valve,
acquire one locally and install per valve
manufacturer’s instructions.
Combined Potable Water and
Space Heating
1. All piping materials and components connected to
the water heater for the space heating application
shall be suitable for use with potable water.
2. Toxicchemicals, such as used for boiler treatment,
shall not be introduced into the potable water used
for space heating.
3. If the heater will be used to supply potable water,
it shall not be connected to any heating system or
components previously used with a non-potable
water heating appliance.
4. When the system requires water for space heating
at temperatures higher than 140°F (60°C), a
means such as a mixing valve shall be installed to
temper the water in order to reduce scald hazard
potential.
Pool Heating
When a boiler or water heater is used in a pool heat-
ing application, ensure that all the following installation
requirements are met.
The XTherm must be equipped with a direct coupled
Cold Water Run injector pump for pool applications.
The integral wet rotor injector pump system supplied
with all H and model 1005 WH XTherm heaters must
not be used for pool service. The direct coupled Cold
Water Run injector pump package is optional on all H
and 1005 WH models and standard on 1505 and 2005
WH and all WHP models. The Cold Water Run system
must be set to maintain 120°F at the inlet to the pri-
mary heat exchanger on all XTherm models.
Tocomplete installation of the heater, the system sen-
sor must be installed in the return water line, upstream
of the heater. The supplied electronic operating con-
trol is configured to operate as the thermostat. A
separate auto limit is shipped loose to be installed in
the system piping downstream of the heater outlet.
See Fig. 17 for the thermostat/sensor location.
CAUTION: When this heater is used for both
potable water and space heating, observe the
following to ensure proper operation.
Set the control in Mode 2 for all single-heater pool
installations. For multiple-heater installations using
an external modulating sequencer, use Mode 8.
Automatic Chlorinators and Chemical
Feeders
All chemicals must be introduced and completely di-
luted into the pool or spa water before being circulated
through the heater. Do not place chlorine tablets or
bromine sticks in the skimmer.High chemical concen-
trations will result when the pump is not running (e.g.
overnight). Chlorinators must feed downstream of the
heater and have an anti-siphoning device to prevent
chemical back-up into the heater when the pump is
shut off.
CAUTION: Power to the heater s hould be
interlocked with the main system pump to make sure
the heater does not fire without the main system
pump in operatio n. Improper flo w control can
damage the heater. Uncontrolled flow (too high) or
restricted flow (too low) can seriously damage the
heater. Follow these instructions to make sure the
heater is properly installed.
AUTOLIMIT
(SETAT 110ºF)
Fig. 17: Single Pool Heater Application
17
CAUTION: Combustion air mu st not be
contaminated by corrosive chemical fumes which
can damage the heater and void the warranty.
NOTE: High chemical concentrates from feeders
and chlorinators that are out of adjustment will cause
very rapid corrosion of the heat exchanger in the
heater. Such damage is not covered under the
warranty.
*Maximum4 times the pipe diameter or 12”, whichever is less.