Space Ray RSTP Series - Manual (Page 9)

Form 43206000
-8- Sept 2011
9.0) TYPICAL SUSPENSION METHODS
All materials used to suspend the heater must have a minimum working load
of 115 lbs. All “S” Hooks must be crimped closed.
If a “Trapeze” method of hanging is used, the chain and turnbuckle used to
suspend the heater must have a minimum working load of 230 lbs. “S” hooks
must have a minimum working load of 120 lbs.
Never use the heater to support a ladder or other access equipment.
Failure to do so may result in death, serious injury or property damage.
SUSPENSION HAZARD
Various means of suspending the heater can be used. The following should be observed:
1. Use only noncombustible materials for suspending hangers and brackets.
2.
Heaters must not be supported by gas or electric supply lines and must be suspended from a permanent
structure with adequate load capacity.
3. Heaters subject to vibration must be provided with vibration isolating hangers.
4. A minimum No. 2 chain with a working load limit of 115 lbs. is required when using four (4) separate chains.
If a “trapeze” method of hanging is desired, you must use a chain with a load limit of at least 230 lbs, a
turnbuckle (if necessary) with a load limit of at least 230 lbs, and “S” hooks with a load limit of at least 115
lbs. Typically, 2/0 chain and 3/8” eye & eye turnbuckle have a minimum working load of 230 lbs; #80 “S”
hooks have a minimum working load of 115 lbs.
5. Turnbuckles can be used with chains to allow leveling of the heater. All “S” hooks and eye bolts must be
manually crimped closed by the installer.
6. When using rigid means for heater suspension (rod, flat bar, etc.) provide sufficient lengths or swing joints to
compensate for expansion. See Figures b and c.
7. The heater can be mounted horizontally or at angles of 30º, 60º, or 90º indoors. The maximum mounting
angle is 45º when installed outdoors. The long axis of the heater should be level whether i The long axis of the heater should be level whether i The long axis of the heater should be level whether i The long axis of the heater should be level whether itttt iiiis ss s mounted mounted mounted mounted
horizontally or angled. horizontally or angled. horizontally or angled. horizontally or angled.
8. If the heater is to be mounted horizontally or at an angle up to 60º, use the hanging brackets installed on
the heater. See Figure 1 on Page 9.
9. If the heater is to be mounted at a 90º angle, remove the existing hanging brackets from each end of the
heater and replace with “L” shaped brackets. See Figure 2 on Page 9. (Note: Note: Note: Note: “L” shaped brackets are
supplied as an accessory item. Order Kit No. 42929000.)
10. IMPORTANT:
IMPORTANT: IMPORTANT: IMPORTANT: When the heater is angle mounted, the exhaust side should be up.
If a “trapeze” method is used for tube support/hanger brackets (shown below), the minimum chain length for the
two connecting chains is 36” to minimize any vibration that might be generated by the draft inducer assembly. If
these chains must be less than 36”, then do not use the trapeze method and, instead, use individual chains on
each tube support/hanger bracket.